12 results on '"Castillo WC"'
Search Results
2. Changing patterns in medication prescription for gestational diabetes during a time of guideline change in the USA: a cross‐sectional study.
- Author
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Venkatesh, KK, Chiang, CW, Castillo, WC, Battarbee, AN, Donneyong, M, Harper, LM, Costantine, M, Saade, G, Werner, EF, Boggess, KA, and Landon, MB
- Subjects
GESTATIONAL diabetes ,DRUG prescribing ,INSULIN therapy ,CROSS-sectional method ,DRUG therapy - Abstract
Objective: To define patterns of prescription and factors associated with choice of pharmacotherapy for gestational diabetes mellitus (GDM), namely metformin, glyburide and insulin, during a period of evolving professional guidelines. Desing: Cross‐sectional study. Setting: US commercial insurance beneficiaries from Market‐Scan (late 2015 to 2018). Study design: We included women with GDM, singleton gestations, 15–51 years of age on pharmacotherapy. The exposure was pharmacy claims for metformin, glyburide and insulin. Main outcomes: Pharmacotherapy for GDM with either oral agent, metformin or glyburide, compared with insulin as the reference, and secondarily, consequent treatment modification (addition and/or change) to metformin, glyburide or insulin. Results: Among 37 762 women with GDM, we analysed data from 10 407 (28%) with pharmacotherapy, 21% with metformin (n = 2147), 48% with glyburide (n = 4984) and 31% with insulin (n = 3276). From late 2015 to 2018, metformin use increased from 17 to 29%, as did insulin use from 26 to 44%, whereas glyburide use decreased from 58 to 27%. By 2018, insulin was the most common pharmacotherapy for GDM; metformin was more likely to be prescribed by 9% compared with late 2015/16, but glyburide was less likely by 45%. Treatment modification occurred in 20% of women prescribed metformin compared with 2% with insulin and 8% with glyburide. Conclusions: Insulin followed by metformin has replaced glyburide as the most common pharmacotherapy for GDM among a privately insured US population during a time of evolving professional guidelines. Further evaluation of the relative effectiveness and safety of metformin compared with insulin is needed. Insulin followed by metformin has replaced glyburide as the most common pharmacotherapy for gestational diabetes mellitus in the USA. Insulin followed by metformin has replaced glyburide as the most common pharmacotherapy for gestational diabetes mellitus in the USA. Linked article This article is commented on by AB Caughey, p. 484 in this issue. To view this mini commentary visit https://doi.org/10.1111/1471-0528.16961. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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3. Cross-cultural adaptation of the awareness and beliefs about cancer measure for Hispanics/Latinos living in the United States.
- Author
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Contreras J, Wang C, Castillo WC, Caicedo J, Guerrero Vázquez M, Robalino T, Hidalgo-Arroyo A, and Villalonga-Olives E
- Subjects
- Adult, Aged, Female, Humans, Male, Middle Aged, Cross-Cultural Comparison, Surveys and Questionnaires, United States, Health Knowledge, Attitudes, Practice, Hispanic or Latino psychology, Neoplasms, Psychometrics
- Abstract
Introduction: The purpose of this study is to culturally adapt the Awareness and Beliefs about Cancer (ABC) measure for use in the Hispanic/Latino population living in the United States (US)., Methods: In accordance with Patient Reported Outcomes (PRO) Consortium guidelines for cross-cultural adaptation of measures for content and linguistic validity, we conducted: two forward-translations, reconciliation, two back-translations, revision and harmonization, six cognitive interviews, revision, external expert review, and finalization of the version. We used a mixed methods approach, conducting cognitive interviews with Hispanic/Latino community members while also convening an expert panel of six clinicians, health professionals, and community representatives and including the in the entire process. After cross-culturally adapting the ABC measure, we assessed the psychometric properties of the instrument using item response theory analysis. Item parameters, discrimination and category thresholds, and standard errors were calculated. For each of the adapted subdomains, we used item information curves to report the graphical profile of item effectiveness., Results: Twenty-two Hispanic/Latino community members were enrolled in cognitive interviews, and Hispanics/Latinos fluent in Spanish completed the measure to assess its psychometric properties. Cognitive interviews revealed opportunities to improve items. Key changes from the original measure include the inclusion of gender inclusive language and an inquiry into e-cigarette use on items related to smoking habits. Psychometric property analyses revealed that the anticipated delay in seeking medical help, general cancer beliefs, and cancer screening beliefs and behaviors subdomains had some slope parameters that were < 1; this implies that those items were not able to adequately discriminate the latent trait and had poor performance., Discussion: The adapted ABC measure for US Hispanics/Latinos meets content and linguistic validity standards, with construct validity confirmed for cancer symptom recognition and barriers to symptomatic presentation subdomains, but revisions are necessary for others, highlighting the need for ongoing refinement to ensure the cultural appropriateness of instruments., Competing Interests: JCa was employed by Heritage Care, Inc. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Contreras, Wang, Castillo, Caicedo, Guerrero Vázquez, Robalino, Hidalgo-Arroyo and Villalonga-Olives.)
- Published
- 2024
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4. Impact of Undertreatment of Depression on Suicide Risk Among Children and Adolescents With Major Depressive Disorder: A Microsimulation Study.
- Author
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Zhang C, Zafari Z, Slejko JF, Castillo WC, Reeves GM, and dosReis S
- Subjects
- Male, Female, Adolescent, Child, Humans, Depression, Antidepressive Agents therapeutic use, Suicide, Attempted, Risk, Disease Susceptibility, Depressive Disorder, Major drug therapy, Depressive Disorder, Major epidemiology
- Abstract
Undertreatment of depression is common among children and adolescents, but evidence of the impact of undertreatment of depression on risk of suicide is limited due to the low base rate of suicide in the population and lack of sufficient data sources. We developed a microsimulation model that uses evidence from multiple sources to study the impact of different durations of antidepressant treatment on suicide risk in a synthesized sample that is nationally representative of children and adolescents with major depressive disorder. Compared with receiving no treatment, suicide rate and risk of suicide attempt both decreased with increasing duration of antidepressant treatment (for 12 weeks, suicide rate ratios = 0.78 (95% credible interval (CrI): 0.58, 1.15), 36 weeks, 0.65 (95% CrI: 0.44, 0.90), and 52 weeks, 0.63 (95% CrI: 0.45, 0.72); for suicide attempt: 12 weeks, suicide risk ratios = 0.68 (95% CrI: 0.62, 0.69), 36 weeks, 0.56 (95% CrI: 0.52, 0.57), and 52 weeks, 0.55 (95% CrI: 0.51, 0.56). The suicide rate and risk of suicide attempt were lower in children than in adolescents. Males had a lower risk of suicide attempt but higher suicide rate than females. The findings from the microsimulation model show that completion of 12-36 weeks of antidepressant treatment may reduce suicide attempt and suicide among children and adolescents with major depressive disorder., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2023
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5. Changing patterns in medication prescription for gestational diabetes during a time of guideline change in the USA: a cross-sectional study.
- Author
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Venkatesh KK, Chiang CW, Castillo WC, Battarbee AN, Donneyong M, Harper LM, Costantine M, Saade G, Werner EF, Boggess KA, and Landon MB
- Subjects
- Adolescent, Adult, Cross-Sectional Studies, Female, Glyburide therapeutic use, Humans, Insulin therapeutic use, Metformin therapeutic use, Middle Aged, Pregnancy, United States, Young Adult, Diabetes, Gestational drug therapy, Drug Prescriptions statistics & numerical data, Hypoglycemic Agents therapeutic use, Practice Patterns, Physicians' statistics & numerical data, Prenatal Care statistics & numerical data
- Abstract
Objective: To define patterns of prescription and factors associated with choice of pharmacotherapy for gestational diabetes mellitus (GDM), namely metformin, glyburide and insulin, during a period of evolving professional guidelines., Desing: Cross-sectional study., Setting: US commercial insurance beneficiaries from Market-Scan (late 2015 to 2018)., Study Design: We included women with GDM, singleton gestations, 15-51 years of age on pharmacotherapy. The exposure was pharmacy claims for metformin, glyburide and insulin., Main Outcomes: Pharmacotherapy for GDM with either oral agent, metformin or glyburide, compared with insulin as the reference, and secondarily, consequent treatment modification (addition and/or change) to metformin, glyburide or insulin., Results: Among 37 762 women with GDM, we analysed data from 10 407 (28%) with pharmacotherapy, 21% with metformin (n = 2147), 48% with glyburide (n = 4984) and 31% with insulin (n = 3276). From late 2015 to 2018, metformin use increased from 17 to 29%, as did insulin use from 26 to 44%, whereas glyburide use decreased from 58 to 27%. By 2018, insulin was the most common pharmacotherapy for GDM; metformin was more likely to be prescribed by 9% compared with late 2015/16, but glyburide was less likely by 45%. Treatment modification occurred in 20% of women prescribed metformin compared with 2% with insulin and 8% with glyburide., Conclusions: Insulin followed by metformin has replaced glyburide as the most common pharmacotherapy for GDM among a privately insured US population during a time of evolving professional guidelines. Further evaluation of the relative effectiveness and safety of metformin compared with insulin is needed., Tweetable Abstract: Insulin followed by metformin has replaced glyburide as the most common pharmacotherapy for gestational diabetes mellitus in the USA., (© 2021 John Wiley & Sons Ltd.)
- Published
- 2022
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6. A National Survey of State Medicaid Psychotropic-Monitoring Programs Targeting Youths.
- Author
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dosReis S, Tai MH, Camelo WC, and Reeves G
- Subjects
- Adolescent, Child, Child, Preschool, Female, Health Care Surveys, Humans, Infant, Male, United States, Drug Monitoring methods, Medicaid, Psychotropic Drugs therapeutic use
- Abstract
Objective: This study aimed to describe state Medicaid psychotropic-monitoring programs targeting youths., Methods: Key informants from each state Medicaid administration and the District of Columbia were invited to participate in a telephone-administered survey designed to assess the implementation strategies of the state psychotropic-monitoring program. Data were collected from August 2011 through December 2012. A total of 38 states participated, four declined, and nine did not respond to the invitation. Descriptive statistics were used to characterize monitoring programs., Results: Key informants from 28 of the 38 states (74%) reported a program in place, mostly prior authorization (68%). One-third of the programs (32%) had a two-tier review involving pharmacists and child psychiatrists., Conclusions: Although variability in psychotropic-monitoring programs may limit comparison of program impact across states, the variability provides an opportunity to investigate the impact of different models on best practices and the quality of care.
- Published
- 2016
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7. Attribute Development Using Continuous Stakeholder Engagement to Prioritize Treatment Decisions: A Framework for Patient-Centered Research.
- Author
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dosReis S, Castillo WC, Ross M, Fitz-Randolph M, Vaughn-Lee A, and Butler B
- Subjects
- Adolescent, Adult, Child, Child Psychiatry, Female, Focus Groups, Humans, Interviews as Topic, Male, Maryland, Middle Aged, Qualitative Research, Young Adult, Decision Making, Mental Disorders therapy, Patient Care Management
- Abstract
Objectives: To develop a methodological approach for selecting, validating, and prioritizing attributes for health care decision making., Methods: Participants (n = 48) were recruited from community support groups if they had a child aged 26 years or younger diagnosed with a coexisting mental health condition and cognitive impairment. Six in-depth interviews eliciting care management experiences were transcribed and coded into themes following the principles of grounded theory and the constant comparative method. Six focus groups involving 42 participants assessed the relevance, priority, and meaning and inter-relationship among the themes. The positive predictive value and sensitivity assessed agreement on thematic meaning. A final list was selected from the top priorities with good agreement as candidate attributes. Attribute levels reflecting the range of experiences in care management decisions emerged from the verbatim passages within each coded theme., Results: Participants were the child's mother (73%), white (77%), married (69%), and on average 48 years old. The children were on average 14 years old; 44% had an intellectual disability, 25% had autism, and more than half had anxiety or attention-deficit/hyperactivity disorder. All 14 attributes identified from the in-depth interviews were deemed relevant. The positive predictive value exceeded 90%, and the sensitivity ranged from 64% to 89%. The final set of attributes formed the framework for care management decisions consisting of six attributes (medication, behavior, services, social, treatment effects, and school) each with three levels., Conclusions: A systematic approach grounded in qualitative methods produced a framework of relevant, important, and actionable attributes representing competing alternatives in clinical decisions., (Copyright © 2016. Published by Elsevier Inc.)
- Published
- 2016
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8. Glyburide vs Insulin and Adverse Pregnancy Outcomes--Reply.
- Author
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Castillo WC and Funk MJ
- Subjects
- Female, Humans, Pregnancy, Diabetes, Gestational drug therapy, Glyburide adverse effects, Hypoglycemic Agents adverse effects, Insulin adverse effects, Pregnancy Outcome
- Published
- 2015
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9. Metformin and the risk of endometrial cancer: a population-based cohort study.
- Author
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Ko EM, Stürmer T, Hong JL, Castillo WC, Bae-Jump V, and Funk MJ
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- Adult, Cohort Studies, Female, Humans, Incidence, Middle Aged, Proportional Hazards Models, Retrospective Studies, Risk Factors, Sulfonylurea Compounds administration & dosage, United States epidemiology, Endometrial Neoplasms epidemiology, Hypoglycemic Agents administration & dosage, Metformin administration & dosage
- Abstract
Objective: While some observational studies have suggested a protective effect of metformin on incident cancer, concerns about potential bias remain. We compared the incidence of endometrial cancer in metformin versus sulfonylurea initiators. Research design and methods We conducted a retrospective cohort analysis using US healthcare claims (MarketScan®), 2000-2011. We identified new users of metformin versus sulfonylureas with no prior cancer diagnoses and followed them until a diagnosis of endometrial cancer, hysterectomy, treatment change, or disenrollment. We estimated hazard ratios (HR) and 95% confidence intervals (CI) using Cox proportional hazards, using an as-treated analytic approach. Stabilized inverse probability of treatment weights were used to adjust for potential confounding at baseline., Results: Of 541,128 eligible women, 456,838 (84%) initiated metformin and 84,290 (16%) initiated sulfonylurea. The treatment groups differed at baseline in terms of age and recent diagnosis codes for diabetes, polycystic ovarian syndrome, and endometrial hyperplasia. Over a median follow-up of 1.2 (IQR 0.4-2.3) years and a total of 2,030,914 person-years, 729 women developed endometrial cancer. Metformin initiation was associated with a lower risk of endometrial cancer in the unadjusted analysis (HR 0.81, 95% CI 0.67-0.97). However, after balancing baseline covariates across groups, metformin was not associated with a reduced risk of endometrial cancer (HR 1.09, 95% CI 0.88-1.35). This finding was consistent across multiple sensitivity analyses and subgroup analyses in diabetic patients and relevant age groups., Conclusions: In this population-based cohort of >500,000 women, initiating metformin compared with sulfonylureas was not associated with a reduced risk of developing endometrial cancer., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2015
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10. Using claims data to predict dependency in activities of daily living as a proxy for frailty.
- Author
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Faurot KR, Jonsson Funk M, Pate V, Brookhart MA, Patrick A, Hanson LC, Castillo WC, and Stürmer T
- Subjects
- Aged, Aged, 80 and over, Data Collection statistics & numerical data, Female, Geriatric Assessment methods, Humans, Male, Predictive Value of Tests, Residence Characteristics statistics & numerical data, United States epidemiology, Activities of Daily Living, Frail Elderly statistics & numerical data, Geriatric Assessment statistics & numerical data, Insurance Claim Review statistics & numerical data, Medicare statistics & numerical data
- Abstract
Purpose: Estimating drug effectiveness and safety among older adults in population-based studies using administrative health care claims can be hampered by unmeasured confounding as a result of frailty. A claims-based algorithm that identifies patients likely to be dependent, a proxy for frailty, may improve confounding control. Our objective was to develop an algorithm to predict dependency in activities of daily living (ADL) in a sample of Medicare beneficiaries., Methods: Community-dwelling respondents to the 2006 Medicare Current Beneficiary Survey, >65 years old, with Medicare Part A, B, home health, and hospice claims were included. ADL dependency was defined as needing help with bathing, eating, walking, dressing, toileting, or transferring. Potential predictors were demographics, International Classification of Diseases, Ninth Revision Clinical Modification diagnosis/procedure and durable medical equipment codes for frailty-associated conditions. Multivariable logistic regression was used to predict ADL dependency. Cox models estimated hazard ratios for death as a function of observed and predicted ADL dependency., Results: Of 6391 respondents, 57% were female, 88% white, and 38% were ≥80. The prevalence of ADL dependency was 9.5%. Strong predictors of ADL dependency were charges for a home hospital bed (OR = 5.44, 95%CI = 3.28-9.03) and wheelchair (OR = 3.91, 95%CI = 2.78-5.51). The c-statistic of the final model was 0.845. Model-predicted ADL dependency of 20% or greater was associated with a hazard ratio for death of 3.19 (95%CI: 2.78, 3.68)., Conclusions: An algorithm for predicting ADL dependency using health care claims was developed to measure some aspects of frailty. Accounting for variation in frailty among older adults could lead to more valid conclusions about treatment use, safety, and effectiveness., (Copyright © 2014 John Wiley & Sons, Ltd.)
- Published
- 2015
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11. Distressing adverse events after antidepressant switch in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial: influence of adverse events during initial treatment with citalopram on development of subsequent adverse events with an alternative antidepressant.
- Author
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Katz AJ, Dusetzina SB, Farley JF, Ellis AR, Gaynes BN, Castillo WC, Stürmer T, and Hansen RA
- Subjects
- Adolescent, Adult, Aged, Antidepressive Agents therapeutic use, Drug Substitution methods, Drug-Related Side Effects and Adverse Reactions diagnosis, Female, Humans, Male, Middle Aged, Treatment Outcome, Young Adult, Antidepressive Agents, Second-Generation adverse effects, Citalopram adverse effects, Depressive Disorder, Major drug therapy, Depressive Disorder, Major epidemiology, Drug-Related Side Effects and Adverse Reactions chemically induced, Drug-Related Side Effects and Adverse Reactions epidemiology
- Abstract
Study Objective: To determine whether distressing adverse events (DAEs) experienced during initial antidepressant treatment are associated with subsequent DAEs after switching to a second antidepressant., Design: Secondary analysis of data from the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial., Setting: Primary care and psychiatric care facilities., Patients: A total of 727 outpatients aged 18-75 years with nonpsychotic major depressive disorder who failed first-step therapy with citalopram and were switched to second-step monotherapy with an alternative antidepressant., Measurements and Main Results: In the STAR*D trial, patient-reported DAEs were entered into the Patient-Rated Inventory of Side Effects (PRISE). In this secondary analysis, data from PRISE were used to determine the incidence of DAEs during first-step treatment with citalopram and second-step treatment with sustained-release bupropion, sertraline, or extended-release venlafaxine. Regression models were used to compare the risk of adverse events during second-step treatment between those who reported similar adverse events during first-step treatment and those who did not, while controlling for potential confounders. Of the 727 patients analyzed, DAEs were reported by 514 patients (70.7%) during first-step treatment and 626 (86.1%) during second-step treatment; no significant differences were observed among the three second-step treatment groups. Overall, patients reporting DAEs during first-step treatment were more likely to report DAEs during second-step treatment (risk ratio [RR] 1.11, 95% confidence interval [CI] 1.03-1.20). After controlling for confounders, patients were significantly more likely to report DAEs specific to a body function or organ system, such as those involving the genitourinary system (RR 3.39, 95% CI 2.41-4.78) or sexual functioning (RR 2.75, 95% CI 2.29-3.29), if the patients had reported similar events during initial treatment., Conclusion: Patients who experienced DAEs with initial antidepressant treatment were likely to report similar adverse events after switching to an alternative antidepressant, even when subsequent treatment is from a different class of antidepressants., (© 2012 Pharmacotherapy Publications, Inc.)
- Published
- 2012
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12. Mobile learning for HIV/AIDS healthcare worker training in resource-limited settings.
- Author
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Zolfo M, Iglesias D, Kiyan C, Echevarria J, Fucay L, Llacsahuanga E, de Waard I, Suàrez V, Llaque WC, and Lynen L
- Abstract
Background: We present an innovative approach to healthcare worker (HCW) training using mobile phones as a personal learning environment.Twenty physicians used individual Smartphones (Nokia N95 and iPhone), each equipped with a portable solar charger. Doctors worked in urban and peri-urban HIV/AIDS clinics in Peru, where almost 70% of the nation's HIV patients in need are on treatment. A set of 3D learning scenarios simulating interactive clinical cases was developed and adapted to the Smartphones for a continuing medical education program lasting 3 months. A mobile educational platform supporting learning events tracked participant learning progress. A discussion forum accessible via mobile connected participants to a group of HIV specialists available for back-up of the medical information. Learning outcomes were verified through mobile quizzes using multiple choice questions at the end of each module., Methods: In December 2009, a mid-term evaluation was conducted, targeting both technical feasibility and user satisfaction. It also highlighted user perception of the program and the technical challenges encountered using mobile devices for lifelong learning., Results: With a response rate of 90% (18/20 questionnaires returned), the overall satisfaction of using mobile tools was generally greater for the iPhone. Access to Skype and Facebook, screen/keyboard size, and image quality were cited as more troublesome for the Nokia N95 compared to the iPhone., Conclusions: Training, supervision and clinical mentoring of health workers are the cornerstone of the scaling up process of HIV/AIDS care in resource-limited settings (RLSs). Educational modules on mobile phones can give flexibility to HCWs for accessing learning content anywhere. However lack of softwares interoperability and the high investment cost for the Smartphones' purchase could represent a limitation to the wide spread use of such kind mLearning programs in RLSs.
- Published
- 2010
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