32 results on '"Sharp PC"'
Search Results
2. Intervention to increase screening mammography among women 65 and older.
- Author
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Michielutte R, Sharp PC, Foley KL, Cunningham LE, Spangler JG, Paskett ED, and Case LD
- Abstract
This paper reports the results of a practice-based intervention program to increase mammography screening among women 65 and older who receive their health care in the private sector. Forty-three primary-care practices and 2147 women in central and western North Carolina were enrolled in the study, and 1911 women completed all phases of the study. The intervention was a three-stage educational and counseling program designed to become progressively more intensive at each stage. The interventions included provider education in the form of current information on issues in mammography for older women, simply written educational materials on breast cancer and screening mailed to women, and a brief telephone counseling session for the women. While the analysis revealed no overall effect across all three stages of the intervention program, tests for interaction indicated a significant program effect for women who were 80 or older, had less than 9 years of education, were black, or had no private insurance to supplement Medicare. The results suggested that providing primary-care physicians with information on screening older women and providing the women with useful educational materials can increase participation in screening mammography among subgroups of women currently least likely to receive mammography screening. [ABSTRACT FROM AUTHOR]
- Published
- 2005
3. Primary care providers' concerns and recommendations regarding mammography screening for older women.
- Author
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Sharp PC, Michielutte R, Spangler JG, Cunningham L, and Freimanis R
- Abstract
BACKGROUND: Morbidity and mortality from breast cancer increase with age; however, mammography screening does not reflect this increased risk for older women. Lack of provider recommendation is a major barrier to screening. METHODS: This is a descriptive study of mammography screening recommendations of community primary care providers in North Carolina (N = 96) participating in a National Cancer Institute funded research project. Providers self-reported screening recommendations for typical patients of different ages and issues and concerns that might influence the decision. Chart reviews compared actual practices with policies stated. RESULTS: Of the providers, 51% recommended biannual, 45% annual for women ages 50 through 74; 4% recommended biannual, 80% annual, 5% did not recommend screening, and 10% had no general policy for women over 75. Cost, inconsistent guidelines, comorbidity, functional status, value of mammography, and patient resistance influenced screening recommendations. Chart review showed even lower rates of recommendation than self-reported figures. CONCLUSIONS: Although the use of screening mammography has increased over the past decade, older women are one of the last subgroups to derive benefit from this screening test. Our survey revealed lower rates for mammography referral in older women. The primary care provider appears to be essential to increasing participation for these older women in breast cancer screening. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
4. Psychosocial factors related to cervical screening among Lumbee women.
- Author
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Michielutte R, Dignan MB, Sharp PC, Blinson K, and Wells HB
- Abstract
0bjective: The present study provides information on factors related to cervical cancer screening among a sample of Lumbee women. Methods: Data for the study were obtained as part of a larger project to increase participation of American Indian women in cervical screening. In-person pre-intervention interviews were conducted with 378 women selected to receive the educational program. Results: The results of the analysis of psychosocial factors associated with recent cervical screening suggested that the cumulative impact of several predisposing factors is most predictive of screening. Conclusion: Educational programs for cervical screening will be most effective if they address a variety of psychosocial factors identified through preliminary assessment of the target population. [ABSTRACT FROM AUTHOR]
- Published
- 1999
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5. Working with lay health educators in a rural cancer-prevention program.
- Author
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Sharp PC, Dignan MB, Blinson k, Konen JC, McQuellon R, Michielutte R, Cummings L, Hinojosa L, and Ledford V
- Abstract
Objective: To describe procedures for working with lay health educators in a rural cancer prevention program. Methods: Process evaluation of traditional personnel methodology indicated problems during the early phases of the program. This necessitated modifications in procedures. Results: Adopting methods more in concert with Native American modes of communication were more beneficial. Conclusion: Experience suggests that lay health educators can be valuable team members in health-education programs. Sensitivity to cultural differences and a high degree of flexibility maybe required in recruitment, training, and supervision. [ABSTRACT FROM AUTHOR]
- Published
- 1998
6. Effects of estrogen replacement on the progression of coronary-artery atherosclerosis.
- Author
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Herrington DM, Reboussin DM, Brosnihan KB, Sharp PC, Shumaker SA, Snyder TE, Furberg CD, Kowalchuk GJ, Stuckey TD, Rogers WJ, Givens DH, and Waters D
- Published
- 2000
7. Isolated autism is not an indication for Smith-Lemli-Opitz syndrome biochemical testing.
- Author
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Kaub PA, Sharp PC, Ranieri E, and Fletcher JM
- Subjects
- Humans, Reference Values, Autism Spectrum Disorder diagnosis, Autistic Disorder diagnosis, Smith-Lemli-Opitz Syndrome diagnosis
- Abstract
Several studies have demonstrated a high incidence of autistic spectrum features in individuals with Smith-Lemli-Opitz syndrome (SLOS). However, do these findings imply a converse relationship that has diagnostic utility? Is SLOS testing implicated when autism spectrum disorder (ASD) is the only clinical indication?, Aim: To determine if there is any correlation with a clinical indication of ASD and a biochemical diagnosis of SLOS, based on historical test request and assay data., Methods: Six years (2008-2013) of clinical test requests for 7-dehydrocholesterol (7-DHC) level were classified and summarised according to indication and final test result., Results: From the audit period, 988 valid test results from post-natal samples were identified. In plasma/serum, mean 7-DHC level was 264.7 μmol/L (normal range < 2.0) for confirmed SLOS cases. No tests performed due to an isolated clinical indication of ASD or where no clinical information was supplied were associated with 7-DHC levels diagnostic for SLOS., Conclusions: Historical test data analysis supports the recommendation that autism/ASD as a single clinical feature is not an appropriate indication for SLOS (7-DHC) biochemical testing., (© 2021 Paediatrics and Child Health Division (The Royal Australasian College of Physicians).)
- Published
- 2022
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8. Ultrasonic Bone Assessment Using the Backscatter Amplitude Decay Constant.
- Author
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Hoffmeister BK, Gray AJ, Sharp PC, Fairbanks LC, and Huang J
- Subjects
- Cadaver, Humans, Scattering, Radiation, Ultrasonography, Cancellous Bone diagnostic imaging, Osteoporosis diagnostic imaging
- Abstract
Ultrasonic backscatter techniques are being developed to detect changes in bone caused by osteoporosis. The present study introduces a new technique that measures the exponential decay in the amplitude of the backscatter signal quantified by a parameter called the backscatter amplitude decay constant (BADC). Measurements were performed on 54 specimens of cancellous bone from 14 human femurs using a 3.5-MHz transducer. Six methods were tested to determine BADC. The recommended method measures the time slope of the natural log of the rectified signal. Measured values of BADC ranged from approximately 0.1 μs
-1 to 0.6 μs-1 . Moderate to strong correlations (Spearman's ρ >0.7) were found between BADC and the density and microstructural characteristics of the specimens determined using X-ray microcomputed tomography. The results of this study suggest that BADC may be able to detect changes in the density and microstructure of cancellous bone caused by osteoporosis and other diseases., (Copyright © 2020 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.)- Published
- 2020
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9. Urinary lipid profiling for the identification of fabry hemizygotes and heterozygotes.
- Author
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Fuller M, Sharp PC, Rozaklis T, Whitfield PD, Blacklock D, Hopwood JJ, and Meikle PJ
- Subjects
- Fabry Disease urine, Heterozygote, Homozygote, Humans, Reproducibility of Results, Spectrometry, Mass, Electrospray Ionization, Fabry Disease genetics, Lipids urine
- Abstract
Background: Fabry disease is an X-linked lysosomal storage disorder resulting from a deficiency of the lysosomal hydrolase, alpha-galactosidase, for which enzyme replacement therapy is now available. In this study, we aimed to identify Fabry heterozygotes not only for genetic counseling of families but because it is becoming increasingly obvious that many heterozygous (carrier) females are symptomatic and should be considered for treatment., Methods: We measured 29 individual lipid species, including ceramide, glucosylceramide, lactosylceramide, and ceramide trihexoside, in urine samples from Fabry hemizygotes and heterozygotes and from control individuals by electrospray ionization tandem mass spectrometry. Individual analyte species and analyte ratios were analyzed for their ability to differentiate the control and patient groups., Results: The Fabry hemizygotes had increased concentrations of the substrate for the deficient enzyme, ceramide trihexoside, as well as lactosylceramide and ceramide, along with decreased concentrations of both glucosylceramide and sphingomyelin. Ratios of these analytes improved differentiation between the control and Fabry groups, with the Fabry heterozygotes generally falling between the Fabry hemizygotes and the control group., Conclusions: These lipid profiles hold particular promise for the identification of Fabry individuals, may aid in the prediction of phenotype, and are potentially useful for the monitoring of therapy in patients receiving enzyme replacement.
- Published
- 2005
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10. Reported pain following mammography screening.
- Author
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Sharp PC, Michielutte R, Freimanis R, Cunningham L, Spangler J, and Burnette V
- Subjects
- Adult, Aged, Female, Humans, Mammography psychology, Mass Screening psychology, Middle Aged, Pain diagnosis, Severity of Illness Index, Mammography adverse effects, Mass Screening adverse effects, Pain etiology
- Abstract
Background: Mammography screening for asymptomatic older women has been shown to be effective in reducing breast cancer mortality. Physicians and patients report pain as a major barrier for many women in the screening process; however, few studies report both the degree and type of pain women experience during the screening., Methods: Two hundred women 40 years and older were interviewed immediately following screening mammography. They were questioned about the pain they experienced, the difference between their experience and their expectations, and the most stressful part of the entire procedure., Results: Seventy-two percent of the women reported the pain to rank 4 or less on a scale of 0 to 10 (mean +/- SD score, 2.95 +/- 2.09). The highest level of pain reported resulted from the compression of the breasts (3.25 +/- 2.43). Ninety-six percent reported that the pain was "less than" or "about as expected." Most (94%) said they were "very likely or somewhat likely to get a mammogram next year." The most stressful part of the procedure was waiting for the results, according to 39% of the women., Conclusions: The relatively low level of pain reported is useful information for both patients and practitioners. Adherence to screening recommendations is more likely to occur when both parties are able to anticipate the most painful and stressful elements of mammography.
- Published
- 2003
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11. Creating student awareness to improve cultural competence: creating the critical incident.
- Author
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Morell VW, Sharp PC, and Crandall SJ
- Subjects
- Adult, Female, Humans, Indians, North American psychology, Medical History Taking, Medicine, Traditional, Menstruation Disturbances ethnology, Menstruation Disturbances therapy, North Carolina, Patient Simulation, Awareness, Culture, Education, Medical, Undergraduate methods, Physician-Patient Relations, Professional Competence, Students, Medical psychology
- Abstract
Teaching medical students to recognize the need for cultural competence and accept their shortcomings in this area is a challenge. A simulated patient scenario was developed to address this challenge. The objective of the simulation is to enhance students' readiness to learn by moving them from 'unconscious incompetence' to 'conscious incompetence'. The patient scenario presents a Cherokee Indian woman with a complaint of abnormal menstrual bleeding who is resistant to gynaecologic care from male providers. A faculty member facilitates a small-group videotape review of student interviews. As students discuss their encounters, they realize they 'misdiagnose' and mishandle the interview. They are confronted by their inability to recognize cultural cues and the impact they may have on health outcomes and begin to question whether cultural beliefs are affecting the care of other patients. This simulation creates an eye-opening situation that must be handled carefully. This activity is an effective method to create awareness in students who feel they 'know all this stuff.'
- Published
- 2002
- Full Text
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12. Molecular analysis of genomic DNA allows rapid, and accurate, prenatal diagnosis of peroxisomal D-bifunctional protein deficiency.
- Author
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Paton BC, Solly PB, Nelson PV, Pollard AN, Sharp PC, and Fietz MJ
- Subjects
- 3-Hydroxyacyl CoA Dehydrogenases genetics, Amniotic Fluid cytology, Cells, Cultured, Fatty Acids analysis, Female, Humans, Hydro-Lyases genetics, Minisatellite Repeats, Multienzyme Complexes genetics, Peroxisomal Multifunctional Protein-2, Polymerase Chain Reaction, Pregnancy, 17-Hydroxysteroid Dehydrogenases, 3-Hydroxyacyl CoA Dehydrogenases deficiency, DNA analysis, Enoyl-CoA Hydratase, Hydro-Lyases deficiency, Multienzyme Complexes deficiency, Peroxisomes chemistry, Prenatal Diagnosis methods
- Abstract
Prenatal diagnosis was requested for a couple with a previous child affected by the peroxisomal disorder D-bifunctional protein deficiency. Prior analysis of the D-bifunctional protein cDNA sequence from the propositus had shown that it was missing 22 bp. This was subsequently attributed to a point mutation in the intron 5 donor site (IVS5 + 1G>C) of the D-bifunctional protein gene. Consistent with parental consanguinity, the patient was shown to be homozygous for this mutation, which is associated with loss of a Hph 1 restriction site in the genomic sequence. Prenatal testing of the fetus using genomic DNA isolated from uncultured amniocytes indicated that both alleles of the D-bifunctional protein had the IVS5 + 1G>C substitution. The peroxisomal defect was later confirmed biochemically using cultured amniocytes, which were found to have elevated levels of very long chain fatty acids (VLCFA). This is the first report of prenatal diagnosis of D-bifunctional protein deficiency using molecular analysis of genomic DNA., (Copyright 2002 John Wiley & Sons, Ltd.)
- Published
- 2002
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13. Correlation among genotype, phenotype, and biochemical markers in Gaucher disease: implications for the prediction of disease severity.
- Author
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Whitfield PD, Nelson P, Sharp PC, Bindloss CA, Dean C, Ravenscroft EM, Fong BA, Fietz MJ, Hopwood JJ, and Meikle PJ
- Subjects
- Adolescent, Adult, Antigens, CD blood, Biomarkers, Child, Child, Preschool, Disease Progression, Female, Gaucher Disease blood, Genotype, Glucosylceramides blood, Glycoproteins blood, Humans, Infant, Lactosylceramides blood, Lysosomal Membrane Proteins, Male, Membrane Glycoproteins blood, Middle Aged, Phenotype, Predictive Value of Tests, Saposins, Gaucher Disease genetics, Gaucher Disease physiopathology
- Abstract
Gaucher disease is a lysosomal storage disorder characterized by a deficiency of the enzyme acid beta-glucosidase. The clinical manifestations of Gaucher disease are highly variable, and although certain genotypes are often associated with mild or severe symptoms, a defined correlation between genotype and phenotype does not exist. Identification of biochemical markers characteristic of pathology may be of use in predicting the progression of the disease state. In this study the relationship among genotype, glycolipid substrates, lysosomal proteins, and the clinical manifestations of Gaucher disease has been evaluated. Plasma glycolipids were analyzed using electrospray ionization-tandem mass spectrometry. Lysosomal-associated membrane protein-1 (LAMP-1) and saposin C were determined by immunoquantification. Patients with Gaucher disease were shown to have an increased 16:0-glucosylceramide/16:0-lactosylceramide ratio and elevated concentrations of LAMP-1 and saposin C in plasma. A general relationship was found to exist among the 16:0-glucosylceramide/16:0-lactosylceramide ratio, LAMP-1 and saposin C levels, and patient phenotype, providing a refinement of the genotype-phenotype correlation. These findings have major implications for the diagnosis, prediction of disease severity, and monitoring of therapy in patients with Gaucher disease., ((C)2002 Elsevier Science (USA).)
- Published
- 2002
- Full Text
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14. Quantification of galactosylsphingosine in the twitcher mouse using electrospray ionization-tandem mass spectrometry.
- Author
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Whitfield PD, Sharp PC, Taylor R, and Meikle P
- Subjects
- Animals, Brain Chemistry, Kidney chemistry, Liver chemistry, Mice, Mice, Mutant Strains, Phenotype, Psychosine chemistry, Spinal Cord chemistry, Spleen chemistry, Psychosine analysis, Spectrometry, Mass, Electrospray Ionization methods
- Abstract
Globoid cell leukodystrophy (Krabbe disease) is an autosomal recessive inherited neurodegenerative disorder caused by the deficiency of the lysosomal enzyme beta-galactosylceramidase. The pathogenesis of the disorder has been proposed to arise from the accumulation of the cytotoxic metabolite galactosylsphingosine (psychosine). The twitcher mouse is a naturally occurring murine model of globoid cell leukodystrophy. We have developed a rapid, sensitive, and specific mass spectrometric method for determining the galactosylsphingosine concentration in the tissues of twitcher mice. Galactosylsphingosine is extracted from the tissues in methanol, isolated using strong cation-exchange and C18 solid-phase extraction chromatography, and then directly analyzed using electrospray ionization-tandem mass spectrometry. A lactosylsphingosine internal standard has been employed for quantification. The assay demonstrated significant accumulation of galactosylsphingosine in the brain, spinal cord, and kidney of twitcher mice. It is anticipated that this method may be of use in the monitoring of experimental therapies for globoid cell leukodystrophy.
- Published
- 2001
15. Characterization of urinary sulfatides in metachromatic leukodystrophy using electrospray ionization-tandem mass spectrometry.
- Author
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Whitfield PD, Sharp PC, Johnson DW, Nelson P, and Meikle PJ
- Subjects
- Adolescent, Adult, Child, Child, Preschool, Female, Humans, Leukodystrophy, Metachromatic diagnosis, Male, Phosphatidylcholines urine, Leukodystrophy, Metachromatic urine, Mass Spectrometry methods, Sulfoglycosphingolipids urine
- Abstract
Metachromatic leukodystrophy is an inherited disorder characterized by a deficiency of the lysosomal enzyme arylsulfatase A and the subsequent accumulation of sulfatide in neural and visceral tissues. Clinical diagnosis is usually confirmed by in vitro analysis of arylsulfatase A activity, but may be complicated in cases of arylsulfatase A pseudodeficiency and sphingolipid activator protein deficiency. Large quantities of sulfatide can be detected in the urinary sediment of affected individuals and its measurement can aid in diagnosis. A number of complex methods have been described for the measurement of urinary sulfatide excretion. We have developed a rapid, sensitive, and specific mass spectrometric method for determining urinary sulfatide concentration of metachromatic leukodystrophy patients. Sulfatides are extracted from urine and then directly analyzed using electrospray ionization-tandem mass spectrometry. A sulfatide internal standard has been employed for quantification. The assay has demonstrated significant elevations in the concentrations of several hydroxy and nonhydroxy molecular species of sulfatide in the urine of metachromatic leukodystrophy patients compared to age-matched controls. Analysis of urinary sulfatides in arylsulfatase A pseudodeficiency patients showed a mild elevation in some individuals when related to urinary phosphatidylcholine., (Copyright 2001 Academic Press.)
- Published
- 2001
- Full Text
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16. The estrogen replacement and atherosclerosis (ERA) study: study design and baseline characteristics of the cohort.
- Author
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Herrington DM, Reboussin DM, Klein KP, Sharp PC, Shumaker SA, Snyder TE, and Geisinger KR
- Subjects
- Aged, Coronary Angiography, Double-Blind Method, Drug Therapy, Combination, Exercise, Female, Follow-Up Studies, Humans, Lipids blood, Middle Aged, Postmenopause, Quality of Life, Smoking, Treatment Outcome, Arteriosclerosis diagnosis, Estrogen Replacement Therapy, Estrogens therapeutic use, Medroxyprogesterone therapeutic use, Progesterone Congeners therapeutic use, Research Design
- Abstract
The Estrogen Replacement and Atherosclerosis (ERA) trial is a three-arm, randomized, placebo-controlled, double-blind trial to evaluate the effects of estrogen replacement therapy (0.625 mg/day oral conjugated estrogen) with or without continuous low-dose progestin (2.5 mg oral medroxyprogesterone acetate/day) versus placebo on progression of atherosclerosis. A total of 309 postmenopausal women at five sites underwent baseline coronary angiography and were randomized. Participants will have repeat coronary angiography after an average of 3.25 years of treatment. The primary outcome of interest will be change in minimum diameter of the major epicardial segments, as assessed by quantitative coronary angiography. The primary aim is to test the hypothesis that either form of hormone therapy will slow the progression or induce regression of coronary atherosclerosis compared to placebo. The secondary aims are to assess the effects of the two treatments versus placebo on endothelial function (measured using flow-mediated vasodilator responses), on several presumed mediators of estrogen's effect on atherosclerosis (i.e., plasma lipids and lipoproteins, blood pressure, glucose metabolism, hemostatic factors, and antioxidant activity), on other factors that influence the development of coronary heart disease (i.e., diet, smoking status, exercise, weight, and health-related quality of life issues), and on clinical cardiovascular events. The ERA trial is the first angiographic endpoint clinical trial to examine the effects of postmenopausal hormone replacement on coronary atherosclerosis in women. It will provide an unparalleled opportunity to determine if either regimen of hormone therapy is effective in slowing the progress of angiographically defined coronary atherosclerosis. This study will complement other estrogen replacement trials, such as the PEPI, HERS, and Women's Health Initiative studies, to provide a more comprehensive examination of the effects of estrogen replacement on cardiovascular risk factors, anatomic and functional manifestations of atherosclerosis, and risk for coronary heart disease in postmenopausal women. Control Clin Trials 2000;21:257-285
- Published
- 2000
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17. Women's cardiovascular health.
- Author
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Sharp PC and Konen JC
- Subjects
- Adult, Aged, Body Weight, Cholesterol blood, Coronary Artery Disease prevention & control, Diabetes Mellitus physiopathology, Estrogens pharmacology, Exercise, Female, Humans, Hypertension physiopathology, Menopause physiology, Middle Aged, Patient Education as Topic, Risk Factors, Smoking Cessation, Stress, Psychological physiopathology, Coronary Artery Disease physiopathology
- Abstract
Significant coronary artery disease is uncommon in premenopausal women, but it is the leading cause of death among postmenopausal women. This article briefly discusses atherosclerotic disease in women, including the effects of menopause and estrogen, the role of cholesterol, hypertension, exercise and weight control, smoking cessation, and diabetes mellitus. The role of screening and testing for coronary artery disease and carotid artery stenosis is discussed. Recommendations for prevention and patient education are included in each section.
- Published
- 1997
18. Biochemical findings in a series of Australian patients with isolated defects in peroxisomal beta-oxidation.
- Author
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Paton BC, Sharp PC, and Poulos A
- Subjects
- Australia, Genetic Complementation Test, Humans, Oxidation-Reduction, Peroxisomal Bifunctional Enzyme, 3-Hydroxyacyl CoA Dehydrogenases deficiency, Enoyl-CoA Hydratase deficiency, Fatty Acids metabolism, Isomerases deficiency, Microbodies metabolism, Multienzyme Complexes deficiency, Peroxisomal Disorders metabolism
- Published
- 1996
- Full Text
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19. Skin cancer prevention and early detection practices in a sample of rural women.
- Author
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Michielutte R, Dignan MB, Sharp PC, Boxley J, and Wells HB
- Subjects
- Adult, Age Factors, Aged, Chi-Square Distribution, Female, Health Services Accessibility statistics & numerical data, Humans, Logistic Models, Middle Aged, Multivariate Analysis, North Carolina, Odds Ratio, Sampling Studies, Self-Examination statistics & numerical data, Socioeconomic Factors, Sunscreening Agents therapeutic use, Women's Health, Attitude to Health, Health Knowledge, Attitudes, Practice, Rural Health, Skin Neoplasms prevention & control, Skin Neoplasms psychology
- Abstract
Background: The incidence of skin cancer in the United States is rapidly increasing, and current estimates suggest that about one in five persons will be diagnosed with skin cancer in their lifetime. However, comparatively little is still known about the prevention and early detection behaviors of healthy individuals. This study presents information on prevention and early detection practices for a sample of non-Hispanic rural white women., Method: Interviews were conducted with 1,295 women age 20 or older who were patients in six public health departments and one primary-care clinic serving a low-income population, all located in rural western North Carolina., Results: Both prevention and early detection behaviors were found to be infrequent in this population. Low knowledge of skin cancer, younger and older ages, and low education characterized women least likely to practice prevention. Low knowledge, younger age, and low education characterized women least likely to practice early detection. Perceived barriers to cancer screening including cost, lack of symptoms, and denial also were predictive of a low likelihood of both prevention and early detection behavior. Fatalism and fear of the stigma associated with cancer also were predictive of lower participation in selected early detection behaviors. A summary general barriers score was significantly associated with all prevention and early detection behaviors examined in the study., Conclusions: The results indicate a need for skin cancer education among this population.
- Published
- 1996
- Full Text
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20. Oxidation of pristanic acid in fibroblasts and its application to the diagnosis of peroxisomal beta-oxidation defects.
- Author
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Paton BC, Sharp PC, Crane DI, and Poulos A
- Subjects
- Australia epidemiology, Bile Acids and Salts blood, Cells, Cultured, Fatty Acids blood, Fibroblasts metabolism, Genetic Complementation Test, Humans, Hybrid Cells, Microbodies chemistry, Oxidation-Reduction, Peroxisomal Bifunctional Enzyme, Peroxisomal Disorders epidemiology, Phytanic Acid metabolism, Prenatal Diagnosis, Zellweger Syndrome diagnosis, 3-Hydroxyacyl CoA Dehydrogenases deficiency, Enoyl-CoA Hydratase deficiency, Fatty Acids metabolism, Isomerases, Multienzyme Complexes deficiency, Peroxisomal Disorders diagnosis
- Abstract
Pristanic acid oxidation measurements proved a reliable tool for assessing complementation in fused heterokaryons from patients with peroxisomal biogenesis defects. We, therefore, used this method to determine the complementation groups of patients with isolated defects in peroxisomal beta-oxidation. The rate of oxidation of pristanic acid was reduced in affected cell lines from all of the families with inherited defects in peroxisomal beta-oxidation, thus excluding the possibility of a defective acyl CoA oxidase. Complementation analyses indicated that all of the patients belonged to the same complementation group, which corresponded to cell lines with bifunctional protein defects. Phytanic acid oxidation was reduced in fibroblasts from some, but not all, of the patients. Plasma samples were still available from six of the patients. The ratio of pristanic acid to phytanic acid was elevated in all of these samples, as were the levels of saturated very long chain fatty acids (VLCFA). However, the levels of bile acid intermediates, polyenoic VLCFA, and docosahexaenoic acid were abnormal in only some of the samples. Pristanic acid oxidation measurements were helpful in a prenatal assessment for one of the families where previous experience had shown that cellular VLCFA levels were not consistently elevated in affected individuals.
- Published
- 1996
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21. Using standardized patient instructors to teach health promotion interviewing skills.
- Author
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Sharp PC, Pearce KA, Konen JC, and Knudson MP
- Subjects
- Adult, Cardiovascular Diseases prevention & control, Curriculum, Feedback, Female, Health Behavior, Humans, Male, Middle Aged, Physician-Patient Relations, Family Practice education, Health Promotion, Patient Education as Topic, Patient Simulation
- Abstract
Background: Medical students report knowledge, but inadequate skills, in health promotion and disease prevention (HPDP) technology. An established methodology using standardized patient instructors (SPIs) was adapted and tested for effectiveness in teaching HPDP., Methods: Thirteen lay persons were trained and given profiles showing high cardiovascular risks. During their family medicine clerkship, 104 students engaged in one-to-one exercises with the SPIs. Half of these sessions were spent in the doctor-patient interview; in the other half, the SPI gave specific feedback using a validated scale. Encounters were videotaped., Results: The students rated the SPI feedback as the program's most valuable aspect and the videotaping as the least valuable. The SPI feedback was rated valuable by 90%-96% of the students. The students also reported that the skills acquired were likely to be used, and they had learned "much" or "very much." As a group, students' self-assessments did not differ from the SPIs' assessments of the students., Conclusion: Lay SPIs are a powerful educational tool.
- Published
- 1996
22. Cultural issues in the development of cancer control programs for American Indian populations.
- Author
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Michielutte R, Sharp PC, Dignan MB, and Blinson K
- Subjects
- Cause of Death, Female, Health Education, Health Knowledge, Attitudes, Practice, Humans, North Carolina epidemiology, Program Development, Survival Rate, Cultural Characteristics, Health Services, Indigenous organization & administration, Indians, North American, Uterine Cervical Neoplasms ethnology, Uterine Cervical Neoplasms prevention & control
- Abstract
Cancer is the third-leading cause of death among American Indians. The persistent disadvantage in cancer survival rates among American Indian populations emphasizes the importance of developing effective cancer control programs for prevention and early detection. However, substantial cultural differences between American Indians and whites can affect the success of these programs. This paper examines the concept of cultural sensitivity in the context of developing cancer control programs for American Indian populations. It explores fundamental differences in beliefs, behaviors, and values between American Indian and white majority cultures, and presents examples of culturally sensitive health education programs. The paper highlights insights and experiences gained in developing the North Carolina Native American Cervical Cancer Prevention Project, and gives recommendations for the development of future programs.
- Published
- 1994
- Full Text
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23. Assessment of the patient-doctor interaction scale for measuring patient satisfaction.
- Author
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Bowman MA, Herndon A, Sharp PC, and Dignan MB
- Subjects
- Adult, Data Collection methods, Female, Humans, Male, Middle Aged, Office Visits, Surveys and Questionnaires, Patient Satisfaction, Physician-Patient Relations, Primary Health Care
- Abstract
This study assessed the validity, reliability and usability of the Patient-Doctor Interaction Scale (PDIS) in a university-based family practice center. Health maintenance visits and problem visits were included, and data were collected at the time of the visit and again 1 month later. Three different methods of administration (in-person, telephone, and mail) were used to assess usability. Of 91 patients approached, 1 refused to participate. A total of 64 (70%) patients completed the instrument adequately to permit analysis. PDIS scores correlated with overall assessment of patient satisfaction (P < 0.01), suggesting criterion-based validity. Internal consistency (reliability) of the PDIS was indicated by Cronbach's alpha which were consistently greater than 0.80. Scores and return rates varied by method of administration, with the telephone method performing best. The PDIS appears to fulfill the requirements for a valid, reliable and useful instrument to assess patient satisfaction in family practice settings.
- Published
- 1992
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24. A comparison of risk assessment models for term and preterm low birthweight.
- Author
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Michielutte R, Ernest JM, Moore ML, Meis PJ, Sharp PC, Wells HB, and Buescher PA
- Subjects
- Adolescent, Adult, Birth Weight, Educational Status, Evaluation Studies as Topic, Female, Gestational Age, Humans, Infant Mortality, Infant, Newborn, Marriage statistics & numerical data, Maternal Age, North Carolina epidemiology, Parity, Predictive Value of Tests, Pregnancy, Prenatal Care standards, Racial Groups, Reproducibility of Results, Risk Factors, Health Status Indicators, Infant, Low Birth Weight, Infant, Premature, Models, Statistical
- Abstract
Background: Most epidemiological research dealing with the assessment of risk for low birthweight has focused on all low birthweight births. Studies that have attempted to distinguish between term and preterm low birthweights have tended to examine preterm low birthweight, since the risk of perinatal mortality and morbidity is greatest for this group of infants., Method: This study uses data from 25,408 singleton births in a 20-county region in North Carolina to identify and compare risk factors for term and preterm low birthweights, and also examines the usefulness of separate multivariate risk assessment systems for term and preterm low birthweights that could be used in the clinical setting., Results: Risk factors that overlap as significant predictors of both types of low birthweight include race, no previous live births, smoking, weight under 100 lb, and previous preterm or low birthweight birth. Age also is a significant predictor of both types of low birthweight, but in opposite directions. Younger age is associated with reduced risk of term low birthweight and increased risk of pattern low birthweight., Conclusion: Comparison of all risk factors indicates that different multivariate models are needed to understand the epidemiology of preterm and term low birthweights. In terms of clinical value, a general risk assessment model that combines all low birthweight births is as effective as the separate models.
- Published
- 1992
- Full Text
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25. Use of process evaluation to guide health education in Forsyth County's project to prevent cervical cancer.
- Author
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Dignan MB, Michielutte R, Sharp PC, Young LD, and Daniels LA
- Subjects
- Black or African American, Female, Humans, Mass Screening, North Carolina, Program Evaluation methods, Health Education methods, Outcome and Process Assessment, Health Care, Uterine Cervical Neoplasms prevention & control
- Abstract
The Forsyth County, NC, Cervical Cancer Prevention Project is a 5-year public health education program designed to increase the proportion of black women in the county who are appropriately screened for cervical cancer. In this paper, the authors report on process evaluation--the procedures used to monitor the intervention and to insure that the target population was reached with a high quality, community-based health education program. A system that encompasses documentation of program activities, interviews with women in waiting rooms of primary care providers, semiannual interviews with a panel of approximately 100 women from the target population, and telephone followup with participants in direct education workshops was designed and implemented. Through October 1990, more than 2,100 interviews had been conducted. Data from these activities have facilitated continued development and refinement of educational materials, provided guidance for developing new strategies for reaching the target population, and provided continuous feedback to program managers to allow monitoring the impact of all program activities.
- Published
- 1991
26. Knowledge and attitudes about cervical cancer and the Pap smear among 10th-grade girls.
- Author
-
Sharp PC, Dignan MB, Dammers PM, Michielutte R, and Jackson DS
- Subjects
- Adolescent, Female, Health Education, Health Knowledge, Attitudes, Practice, Humans, North Carolina, Surveys and Questionnaires, Papanicolaou Test, Uterine Cervical Neoplasms prevention & control, Vaginal Smears
- Abstract
Data from questionnaires completed by 419 10th-grade girls were analyzed as part of a school health education program. The questionnaire was designed to collect knowledge of, attitudes toward, and experiences with cancer and cancer prevention. Data were collected from randomly selected health classes preceding a presentation on breast and cervical cancer prevention. Results showed that the girls were pessimistic about chances of surviving cancer and did not differentiate survival by type or site of the cancer. Although there was considerable confusion about its purpose, 27.6% reported having had a Papanicolaou smear within the past year and 79.2% correctly identified the Pap smear as a test for cancer.
- Published
- 1990
- Full Text
- View/download PDF
27. Methods for determining patient improvement following visits to family physicians.
- Author
-
Bowman MA, Sharp PC, Herndon A, and Dignan MB
- Subjects
- Adolescent, Adult, Emotions, Female, Follow-Up Studies, Humans, Interpersonal Relations, Male, Middle Aged, Quality of Health Care, Random Allocation, Health Status Indicators, Office Visits, Physicians, Family
- Abstract
Two instruments were used to assess patient improvement following visits to providers in a university based family practice center--the Modified Williamson Functional Assessment (MWFA) and the Mini-Duke-UNC Health Profile (Mini-DUHP). Of the 90 patients over the age of 18 seen for problem or health maintenance visits who were included in the study, 64 adequately completed the instruments at the time of the visit and one month later. Functional assessments by in-person, mail, and telephone methods of administration were similar. Patients' MWFA scores did not significantly improve by the time of the one-month follow-up. Mini-DUHP subscales for symptom and physical function also did not significantly improve. Mini-DUHP emotional, social, and composite scores indicated a decrease in function following the visits, particularly visits for health maintenance. MWFA and Mini-DUHP scores correlated only modestly, with the highest correlation occurring between Mini-DUHP Physical Score and the MWFA (0.414 or 0.509, P less than .001). Additional study is needed to identify or develop an instrument that can adequately assess broad changes in functioning for multiple diagnoses following specific physician interventions, and the reason for the decline in emotional and social function following visits needs further elucidation and evaluation.
- Published
- 1990
28. Development of a direct education workshop for cervical cancer prevention in high risk women: the Forsyth County project.
- Author
-
Dignan MB, Beal PE, Michielutte R, Sharp PC, Daniels LA, and Young LD
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Health Education standards, Health Knowledge, Attitudes, Practice, Humans, Middle Aged, North Carolina, Program Evaluation, Teaching methods, Black or African American, Health Education organization & administration, Program Development, Uterine Cervical Neoplasms prevention & control
- Abstract
With funding from the National Cancer Institute, a public health education program was developed with the primary objective of increasing the proportion of black women in Forsyth County, North Carolina, who receive Pap smears on a regular basis. This paper reports on the development and implementation of the direct education component of the program. The content of the workshop was based on community analysis of current knowledge, attitudes, and behaviors in the target population, and a review of relevant literature on cervical cancer and the Pap smear. Methods for presentation of the content were refined through three pilot tests. Audiovisual materials were also developed to illustrate key points. The direct education component of the program was designed to function as a short workshop and includes an overview of healthy lifestyles, coverage of the importance of early detection of cancer, a description and discussion of the pelvic exam and the Pap smear, and a discussion of common barriers to obtaining Pap smears on a regular basis. Evaluation of the workshop emphasizes process measures, including a questionnaire to collect demographic information and impressions of the presentation. Interim results of the evaluation are discussed.
- Published
- 1990
- Full Text
- View/download PDF
29. Lassa fever in children.
- Author
-
Sharp PC
- Subjects
- Antibodies, Viral analysis, Child, Child, Preschool, Female, Humans, Infant, Lassa Fever diagnosis, Lassa virus immunology, Male, Sierra Leone, Lassa Fever epidemiology
- Published
- 1982
- Full Text
- View/download PDF
30. Moonlighting: a practice to be encouraged?
- Author
-
Kelly WS and Sharp PC
- Subjects
- Appointments and Schedules, Child, Female, Hospital Bed Capacity, 500 and over, Humans, North Carolina, Pregnancy, United States, Family Practice education, Internship and Residency, Professional Practice standards
- Published
- 1984
31. Development of a community cancer education program: the Forsyth County, NC cervical cancer prevention project.
- Author
-
Michielutte R, Dignan MB, Wells HB, Young LD, Jackson DS, and Sharp PC
- Subjects
- Adult, Black or African American, Aged, Attitude to Health, Awareness, Female, Humans, Middle Aged, Models, Theoretical, North Carolina, Risk, Socioeconomic Factors, Uterine Cervical Neoplasms psychology, Vaginal Smears, Health Education organization & administration, Mass Screening organization & administration, Uterine Cervical Neoplasms prevention & control
- Abstract
The authors outline the development and implementation of a public health education program for cervical cancer screening among black women in Forsyth County, NC. The educational program includes distributing electronic and printed information media messages, a program of direct education for women, and providing information on current issues in cervical screening to primary-care physicians. Program development was based on social marketing principles, the PRECEDE model, and the communication-behavior change (CBC) model. Since a true experimental design was not feasible, program evaluation is based on several complementary quasi-experimental designs. Analysis of baseline data indicate that the county where the intervention is taking place, and the control county, are similar with respect to both demographic characteristics and the current level of screening activity. Preliminary results indicate that the program has been successful in raising women's level of awareness of cervical cancer and cervical screening.
- Published
- 1989
32. Regional program for prevention of premature birth in northwestern North Carolina.
- Author
-
Meis PJ, Ernest JM, Moore ML, Michielutte R, Sharp PC, and Buescher PA
- Subjects
- Costs and Cost Analysis, Female, Humans, Infant, Low Birth Weight, Infant, Newborn, Infant, Premature, North Carolina, Pregnancy, Risk, Health Education, Obstetric Labor, Premature prevention & control, Prenatal Care, Regional Medical Programs
- Abstract
We present our experience with introducing and implementing a prematurity prevention program in a 20-county region in northwest North Carolina. The program is based on the risk assessment and educational model. In the first 25 months of results available, 17,370 births occurred in women enrolled in the project. During 1985, 42.5% of all births in the region occurred in the project. During the time span examined, a downward trend was seen for rates of low birth weight births in public and private patients and for very low birth weight births in private patients. During 1985, private births in the project were significantly less likely to be low birth weight or very low birth weight than private births to women not in the project. These results suggest that regional implementation of prematurity prevention programs is feasible and that such programs are particularly appropriate for private patients.
- Published
- 1987
- Full Text
- View/download PDF
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