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Objective: The prevalence of type 2 diabetes mellitus is increasing rapidly in industrialized countries, and adrenal glucocorticoids may intensify this disease. We sought to assess the relationship between diabetes-associated metabolic disturbances and cortisol concentrations in patients with type 2 diabetes., Design: We investigated 190 type 2 diabetic patients who volunteered from a population study of 12,430 people in Luebeck and its suburbs. The target population comprised men and women born between 1939 and 1958 who initially received a postal questionnaire about their health status. We identified 346 subjects with confirmed diabetes mellitus and 216 patients participated in the study. Patients with type 1 diabetes were excluded., Methods: Five salivary cortisol samples were collected before and after lunch, in the evening and then the next morning before and after standing. Clinical variables associated with diabetes were measured and correlated with cortisol concentrations., Results: None of the cohort had salivary cortisol concentrations that exceeded the normally accepted range. Based on cortisol samples collected just prior to a standard lunch, the cohort was divided into tertiles. Cortisol was positively related to: fasting blood, urinary and postprandial glucose; glycosylated hemoglobin; and systolic and diastolic blood pressures (all P < 0.05). Cortisol concentrations also correlated with the relative abdominal mass (P < 0.05) when patients with marked glucosuria were excluded., Conclusions: The degree of severity of several clinical measures of type 2 diabetes correlates with cortisol concentrations. Moreover, the results provide evidence for a positive relationship between metabolic disturbances and cortisol concentrations that are within the accepted normal range.

Introduction: Vertebral fracture is a strong risk factor for future spine and hip fractures; yet recent data suggest that only 5-20% of subjects with a spine fracture are identified in primary care. We aimed to develop easily applicable algorithms predicting a high risk of future spine fracture in men and women over 50 years of age., Methods: Data was analysed from 5,561 men and women aged 50+ years participating in the European Prospective Osteoporosis Study (EPOS). Lateral thoracic and lumbar spine radiographs were taken at baseline and at an average of 3.8 years later. These were evaluated by an experienced radiologist. The risk of a new (incident) vertebral fracture was modelled as a function of age, number of prevalent vertebral fractures, height loss, sex and other fracture history reported by the subject, including limb fractures occurring between X-rays. Receiver Operating Characteristic (ROC) curves were used to compare the predictive ability of models., Results: In a negative binomial regression model without baseline X-ray data, the risk of incident vertebral fracture significantly increased with age [RR 1.74, 95% CI (1.44, 2.10) per decade], height loss [1.08 (1.04, 1.12) per cm decrease], female sex [1.48 (1.05, 2.09)], and recalled fracture history; [1.65 (1.15, 2.38) to 3.03 (1.66, 5.54)] according to fracture site. Baseline radiological assessment of prevalent vertebral fracture significantly improved the areas subtended by ROC curves from 0.71 (0.67, 0.74) to 0.74 (0.70, 0.77) P=0.013 for predicting 1+ incident fracture; and from 0.74 (0.67, 0.81) to 0.83 (0.76, 0.90) P=0.001 for 2+ incident fractures. Age, sex and height loss remained independently predictive. The relative risk of a new vertebral fracture increased with the number of prevalent vertebral fractures present from 3.08 (2.10, 4.52) for 1 fracture to 9.36 (5.72, 15.32) for 3+. At a specificity of 90%, the model including X-ray data improved the sensitivity for predicting 2+ and 1+ incident fractures by 6 and 4 fold respectively compared with random guessing. At 75% specificity the improvements were 3.2 and 2.4 fold respectively. With the modelling restricted to the subjects who had BMD measurements (n=2,409), the AUC for predicting 1+ vs. 0 incident vertebral fractures improved from 0.72 (0.66, 0.79) to 0.76 (0.71, 0.82) upon adding femoral neck BMD (P=0.010)., Conclusion: We conclude that for those with existing vertebral fractures, an accurately read spine X-ray will form a central component in future algorithms for targeting treatment, especially to the most vulnerable. The sensitivity of this approach to identifying vertebral fracture cases requiring anti-osteoporosis treatment, even when X-rays are ordered highly selectively, exceeds by a large margin the current standard of practice as recorded anywhere in the world.

Vertebral fractures are associated with back pain and disability. There are, however, few prospective data looking at back pain and disability following identification of radiographic vertebral fracture. The aim of this analysis was to determine the impact of radiographically identified vertebral fracture on the subsequent occurrence of back pain and disability. Women aged 50 years and over were recruited from population registers in 18 European centers for participation in the European Prospective Osteoporosis Study. Participants completed an interviewer-administered questionnaire which included questions about back pain in the past year and various activities of daily living, and they had lateral spine radiographs performed. Participants in these centers were followed prospectively and had repeat spine radiographs performed a mean of 3.7 years later. In addition they completed a questionnaire with the same baseline questions concerning back pain and activities of daily living. The presence of prevalent and incident vertebral fracture was defined using established morphometric criteria. The data were analyzed using logistic regression with back pain or disability (present or absent) at follow-up as the outcome variable with adjustment made for the baseline value of the variable. The study included 2,260 women, mean age 62.2 years. The mean time between baseline and follow-up survey was 5.0 years. Two hundred and forty participants had prevalent fractures at the baseline survey, and 85 developed incident fractures during follow-up. After adjustment for age, center, and the baseline level of disability, compared with those without baseline prevalent fracture, those with a prevalent fracture (odds ratio [OR] = 1.4; 95% confidence interval [CI] 1.0 to 2.0) or an incident fracture (OR = 1.7; 95% CI, 0.9 to 3.2) were more likely to report disability at follow-up, though the confidence intervals embraced unity. Those with both a prevalent and incident fracture, however, were significantly more likely to report disability at follow-up (OR = 3.1; 95% CI, 1.4 to 7.0). After adjustment for age, center, and frequency of back pain at baseline, compared with those without baseline vertebral fracture, those with a prevalent fracture were no more likely to report back pain at follow-up (OR = 1.2; 95% CI, 0.8 to 1.7). There was a small increased risk among those with a preexisting fracture who had sustained an incident fracture during follow-up (OR = 1.6; 95% CI, 0.6 to 4.1) though the confidence intervals embraced unity. In conclusion, although there was no significant increase in the level of back pain an average of 5 years following identification of radiographic vertebral fracture, women who suffered a further fracture during follow-up experienced substantial levels of disability with impairment in key physical functions of independent living.

Aim: The aim of this study was to investigate the prevalence of pain and characteristics of pain (frequency, duration, intensity) among children and adolescents and to compare them across different age and gender groups., Methods: 735 children and adolescents aged 10-18 y from schools in the Luebeck region of Germany were surveyed using a modified German version of the self-completion pain questionnaire of Perquin and co-workers., Results: 715 out of 735 questionnaires (97.3%) were returned completed. Pain during the preceding 3 mo was reported by 85.3% (n = 610) of the respondent children and adolescents. The prevalence of pain increased with age. The most common complaints were headache (65.6%), abdominal pain (47.7%), limb pain (46.4%) and back pain (38.6%). A pain duration of longer than 3 mo was reported by 45.5% (35.4% for longer than 6 mo). Pain once a week or more frequently was reported by 33.7% of children and adolescents., Conclusion: Almost half of the surveyed children and adolescents had suffered complaints for longer than 3 mo. The experience of pain in general and especially pain with a duration of longer than 3 mo is very common in children and adolescents, and requires further attention. Further studies are necessary to investigate the natural course, functional implications and prognosis due to pain complaints in children and adolescents.

Unlabelled: More severe vertebral fractures have more personal impact. In the European Prospective Osteoporosis Study, more severe vertebral collapse was predictable from prior fracture characteristics. Subjects with bi-concave or crush fractures at baseline had a 2-fold increase in incident fracture size and thus increased risk of a disabling future fracture., Introduction: According to Euler's buckling theory, loss of horizontal trabeculae in vertebrae increases the risk of fracture and suggests that the extent of vertebral collapse will be increased in proportion. We tested the hypothesis that the characteristics of a baseline deformity would influence the size of a subsequent deformity., Methods: In 207 subjects participating in the European Prospective Osteoporosis Study who suffered an incident spine fracture in a previously normal vertebra, we estimated loss of volume (fracture size) from plane film images of all vertebral bodies that were classified as having a new fracture. The sum of the three vertebral heights (anterior, mid-body, and posterior) obtained at follow-up was subtracted from the sum of the same measures at baseline. Each of the summed height loss for vertebrae with a McCloskey-Kanis deformity on the second film was expressed as a percentage., Results and Conclusions: In univariate models, the numbers of baseline deformities and the clinical category of the most severe baseline deformity were each significantly associated with the size of the most severe incident fracture and with the cumulated sum of all vertebral height losses. In multivariate modeling, age and the clinical category of the baseline deformity (crush > bi-concave > uni-concave > wedge) were the strongest determinants of both more severe and cumulative height loss. Baseline biconcave and crush fractures were associated at follow-up with new fractures that were approximately twice as large as those seen with other types of deformity or who previously had undeformed spines. In conclusion, the characteristics of a baseline vertebral deformity determines statistically the magnitude of vertebral body volume lost when a subsequent fracture occurs. Because severity of fracture and number of fractures are determinants of impact, the results should improve prediction of the future personal impact of osteoporosis once a baseline prevalent deformity has been identified.

The SF-36 Health Survey and its 12-item abridged form is an instrument for the assessment of health related quality of life that can be used with healthy persons and patient populations. Its use has been recommended within a large German multicentre rehabilitation research programme. The paper examines missing data across all five study projects of the North German Network for Rehabilitation Research (NVRF) as well as psychometric properties of the instrument. In addition, data were compared to representative norm data using the SF-36 (SF-12) in the German National Health Survey. Results showed that there were few missing data in the SF-36. Examining the impact of age, gender and health status yielded effects of higher age and female gender on missing data. Psychometric analyses showed good to excellent results of the instrument in terms of scale fit and reliability. In terms of convergent validity, medium to high correlation of the SF-36 subscales with comparable instruments (e. g. SCL-90-R) could be found. Summarizing, the SF-36/SF-12 can be recommended for use in rehabilitation research. Analyses regarding sensitivity should be conducted in future studies.

Aim of the Study: The objective of this exploratory study was to examine the prevalence of overall pain generally and combinations of different pain locations, as well as their location, intensity, and duration in children and adolescents., Methods: After consent was granted by the local ethical committee and the Ministry for Education, Research, Science and Culture, modified versions of the structured pain questionnaire of Perquin et al. were submitted to 1077 parents, children,and adolescents in the Lübeck region of Germany. Of the 1077 questionnaires distributed, 1030 were returned (95.6%), and 991 of the 1030 questionnaires (96.2%) could be included in the analysis., Results: The prevalence of overall pain during the preceding 3 months was 80.1%, while the prevalence of pain in more than one region of the body during the preceding 3 months was 66.3%. Of the children and adolescents, 57% had headaches, 43.2% suffered from abdominal pain, 41.6% had limb pain, 32.9% had back pain, and 30% suffered from sore throats during the previous 3 months. A total of 30.7% of the children and adolescents with pain reported that the pain had already lasted for more than 6 months., Conclusions: Pain in general is very frequent in children and adolescents. Further studies are required to investigate chronic pain in children and adolescents.

Objective: Multidisciplinary team care is an opportunity to improve the long-term metabolic situation of patients with diabetes mellitus, hence can help reduce the individual and financial burden of diabetes-related complications. The aim of this study is to evaluate the extent to which patients undergoing rehabilitation carried by the German Federal Insurance Institute for Salaried Employees (BfA) were treated in accordance with recent evidence-based clinical practice guidelines on diabetes mellitus., Methods: We extracted specific treatment recommendations relevant to inpatient rehabilitation from national and international evidence-based guidelines and allocated them to general subjects of diabetes care (e. g. [disease specific] education, physical activity, psychosocial interventions). In the "Classification of Therapeutic Procedures (KTL)", an instrument used to classify therapeutic procedures in rehabilitation, we then identified those procedures that represented the recommendations of the guidelines. The coded procedures were allocated to the general aspects of diabetes care, too. In total, 9 "therapeutic modules" were designed, each containing guideline-recommendations and coded procedures. Using the KTL codes documented as a routine in discharge reports, we were able to describe, analyse and evaluate the procedures performed during rehabilitation. The data set we used contained KTL codes and medical information from 9,456 patients whose rehabilitation was carried by the BfA diagnosed with either diabetes mellitus type 1 or 2, who received an inpatient rehabilitation procedure during the years 2000 and 2001., Results: The number of patients who received at least one procedure out of the particular therapeutic module is as follows (numbers in brackets represent the total number of KTL codes in that therapeutic module): Therapeutic module "Education (3)" - 98.66 %, "Exercise Training (63)" - 92.42 %, "Nutrition Training (14)" - 96.44 %, "Stress (18)" - 35.33 %, "Motivation (15)" - 82.87 %, "Coping Skills (15)" - 27.42 %, "Social Work (26)" - 11.44 %, "Alcohol and Nicotine (24)" - 3.69 %, "Diabetic Complications (81)" - 75.42 %. On average patients received procedures out of 5.2 different therapeutic modules. The results were consistent over subgroups (type 1/type 2 diabetes, men/women) but varied considerably between clinics. The care provided in clinics with higher numbers of diabetic patients is more in line with guideline specifications., Discussion: A substantial number of patients received procedures out of the therapeutic modules "Education", "Exercise Training", "Nutrition Training" and "Motivation". In other therapeutic modules (e. g. "Alcohol and Nicotine") deficits were noted. These deficits as well as the substantial variation between clinics demonstrate the need to develop clinical practice guidelines for rehabilitation of patients with diabetes. In principle, the results of this study have to be interpreted carefully because we did not examine to which extent the documented processes are in accordance with the realities., Conclusions: Inpatient rehabilitation of diabetic patients carried by the BfA can be characterised as multidisciplinary and in accordance with the recommendations of recent evidence-based guidelines. Certain problematic aspects should be put into focus. A guideline taking into account all rehabilitative aspects, including the preparation for and the care after the rehabilitation process, can be instrumental in reducing deficits in rehabilitative care as well as differences between clinics. To gain wide acceptance, guideline development should be coordinated by a scientific institute and involve members of all groups concerned (e. g. the rehabilitative team, GPs, patients). Within certain limits the "KTL" instrument permits evaluation of process quality in rehabilitation of patients with diabetes mellitus.

The aim of this analysis was to determine the influence of lifestyle, anthropometric and reproductive factors on the subsequent risk of incident vertebral fracture in men and women aged 50-79 years. Subjects were recruited from population registers from 28 centers across Europe. At baseline, they completed an interviewer-administered questionnaire and had lateral thoraco-lumbar spine radiographs performed. Repeat spinal radiographs were performed a mean of 3.8 years later. Incident vertebral fractures were defined morphometrically and also qualitatively by an experienced radiologist. Poisson regression was used to determine the influence of the baseline risk factor variables on the occurrence of incident vertebral fracture. A total of 3173 men (mean age 63.1 years) and 3402 women (mean age 62.2 years) contributed data to the analysis. In total there were 193 incident morphometric and 224 qualitative fractures. In women, an age at menarche 16 years or older was associated with an increased risk of vertebral fracture (RR = 1.80; 95%CI 1.24, 2.63), whilst use of hormonal replacement was protective (RR = 0.58; 95%CI 0.34, 0.99). None of the lifestyle factors studied including smoking, alcohol intake, physical activity or milk consumption showed any consistent associations with incident vertebral fracture. In men and women, increasing body weight and body mass index were associated with a reduced risk of vertebral fracture though, apart from body mass index in men, the confidence intervals embraced unity. For most variables the strengths of the associations observed were similar using the qualitative and morphometric approaches to fracture definition. In conclusion our data suggest that modification of other lifestyle risk factors is unlikely to have a major impact on the population occurrence of vertebral fractures. The important biological mechanisms underlying vertebral fracture risk need to be explored using new investigational strategies.

The aim of this population-based prospective study was to determine the incidence of limb fracture by site and gender in different regions of Europe. Men and women aged 50-79 years were recruited from population registers in 31 European centers. Subjects were invited to attend for an interviewer-administered questionnaire and lateral spinal radiographs. Subjects were subsequently followed up using an annual postal questionnaire which included questions concerning the occurrence of new fractures. Self-reported fractures were confirmed where possible by radiograph, attending physician or subject interview. There were 6451 men and 6936 women followed for a median of 3.0 years. During this time there were 140 incident limb fractures in men and 391 in women. The age-adjusted incidence of any limb fracture was 7.3/1000 person-years [pyrs] in men and 19 per 1000 pyrs in women, equivalent to a 2.5 times excess in women. Among women, the incidence of hip, humerus and distal forearm fracture, though not 'other' limb fracture, increased with age, while in men only the incidence of hip and humerus fracture increased with age. Among women, there was evidence of significant variation in the occurrence of hip, distal forearm and humerus fractures across Europe, with incidence rates higher in Scandinavia than in other European regions, though for distal forearm fracture the incidence in east Europe was similar to that observed in Scandinavia. Among men, there was no evidence of significant geographic variation in the occurrence of these fractures. This is the first large population-based study to characterize the incidence of limb fracture in men and women over 50 years of age across Europe. There are substantial differences in the descriptive epidemiology of limb fracture by region and gender.

Objective: To register all newly diagnosed patients with primary systemic vasculitis (PSV) in two large regions in north and south Germany., Methods: Between 1 January 1998 and 31 December 1999, all newly diagnosed cases of PSV, as defined by the Chapel Hill Consensus Conference 1992, were identified in two large mixed rural/urban regions in north and south Germany with a combined population of 4,880,543, for a population-based prospective study. The following sources were used: (i) all departments of every hospital, including their out-patient clinics; (ii) all departments of pathology; and (iii) all reference immunological laboratories serving the catchment area. All cases were re-evaluated by the authors., Results: Over the whole period, 473 individuals were registered as having a new PSV. The incidence rates for all PSV were 54 cases per 1,000,000 inhabitants in the north and 48 in the south in 1998, and 48 and 41 respectively in 1999. People 50 yr and older had a three- to five-fold higher risk of getting PSVs than those under 50 yr. The incidences of antineutrophil cytoplasmic antibody (ANCA)-associated PSVs [Wegener's granulomatosis (WG), microscopic polyangiitis (MPA) and Churg-Strauss syndrome (CSS)] remained stable in both regions, at about 9.5 per 1,000,000 annually. The incidence of WG was two to three times greater than those of MPA and CSS. There was no difference in incidence rates between north and south Germany., Conclusion: First results from a population-based vasculitis register serving nearly 5,000,000 inhabitants in north and south Germany revealed no regional differences in the incidence of all PSVs between north and south. The incidence rates of ANCA-associated PSVs, such as WG and MPA, were lower than those in the UK and Norway but higher than that in Spain.

Vertebral fracture is one of the major adverse clinical consequences of osteoporosis; however, there are few data concerning the incidence of vertebral fracture in population samples of men and women. The aim of this study was to determine the incidence of vertebral fracture in European men and women. A total of 14,011 men and women aged 50 years and over were recruited from population-based registers in 29 European centers and had an interviewer-administered questionnaire and lateral spinal radiographs performed. The response rate for participation in the study was approximately 50%. Repeat spinal radiographs were performed a mean of 3.8 years following the baseline film. All films were evaluated morphometrically. The definition of a morphometric fracture was a vertebra in which there was evidence of a 20% (+4 mm) or more reduction in anterior, middle, or posterior vertebral height between films--plus the additional requirement that a vertebra satisfy criteria for a prevalent deformity (using the McCloskey-Kanis method) in the follow-up film. There were 3174 men, mean age 63.1 years, and 3,614 women, mean age 62.2 years, with paired duplicate spinal radiographs (48% of those originally recruited to the baseline survey). The age standardized incidence of morphometric fracture was 10.7/1,000 person years (pyr) in women and 5.7/1,000 pyr in men. The age-standardized incidence of vertebral fracture as assessed qualitatively by the radiologist was broadly similar-12.1/1,000 pyr and 6.8/1,000 pyr, respectively. The incidence increased markedly with age in both men and women. There was some evidence of geographic variation in fracture occurrence; rates were higher in Sweden than elsewhere in Europe. This is the first large population-based study to ascertain the incidence of vertebral fracture in men and women over 50 years of age across Europe. The data confirm the frequent occurrence of the disorder in men as well as in women and the rise in incidence with age.

The prevalence of chronic pain in the general population ranges from 10% to over 40%, depending on the investigation and definition. Chronic pain is tied to high direct and indirect costs for the health care system on the one hand and considerable personal impairment of the quality of life on the other. The present paper provides an overview of the frequency and distribution of chronic pain in the general population and among those receiving treatment. The limitations of epidemiological investigations lie in the difficulty of validly assessing subjective internal experiences of the patients. Moreover, it is not possible to make diagnoses in the proper sense. In contrast, the examination of patients seeking and receiving treatment offers a further diagnostic differentiation and better assessment of the qualitative aspects of the pain experience. However, the meaningfulness of these studies is also limited due to the qualitative problems. Despite the methodological limitations of the studies investigated, the wide distribution and meaning of chronic pain becomes clear particularly when evaluating studies on the general population and populations receiving treatment.

The presence of a vertebral deformity increases the risk of subsequent spinal deformities. The aim of this analysis was to determine whether the presence of vertebral deformity predicts incident hip and other limb fractures. Six thousand three hundred and forty-four men and 6788 women aged 50 years and over were recruited from population registers in 31 European centers and followed prospectively for a median of 3 years. All subjects had radiographs performed at baseline and the presence of vertebral deformity was assessed using established morphometric methods. Incident limb fractures which occurred during the follow- up period were ascertained by annual postal questionnaire and confirmed by radiographs, review of medical records and personal interview. During a total of 40348 person-years of follow-up, 138 men and 391 women sustained a limb fracture. Amongst the women, after adjustment for age, prevalent vertebral deformity was a strong predictor of incident hip fracture, (rate ratio (RR) = 4.5; 95% CI 2.1-9.4) and a weak predictor of 'other' limb fractures (RR = 1.6; 95% CI 1.1-2.4), though not distal forearm fracture (RR = 1.0; 95% CI 0.6-1.6). The predictive risk increased with increasing number of prevalent deformities, particularly for subsequent hip fracture: for two or more deformities, RR = 7.2 (95% CI 3.0-17.3). Amongst men, vertebral deformity was not associated with an increased risk of incident limb fracture though there was a nonsignificant trend toward an increased risk of hip fracture with increasing number of deformities. In summary, prevalent radiographic vertebral deformities in women are a strong predictor of hip fracture, and to a lesser extent humerus and 'other' limb fractures; however, they do not predict distal forearm fractures.

Objective: To investigate the period prevalences of primary systemic vasculitides (PSV) in urban and rural populations in northern and southern Germany in 1994., Methods: Questionnaires were sent to all hospital departments, all physicians, health insurance providers and pension funds, reference laboratories for autoimmune diseases, and death registries in two catchment areas in northern and southern Germany (combined population 875 983) to identify patients with PSV between 1 January and 31 December 1994. Each catchment area encompassed both an urban and a rural area. Each case was re-evaluated by the authors by applying the definitions of the 1992 Chapel Hill Consensus Conference on the Nomenclature of Systemic Vasculitis., Results: A total of 180 PSV patients were identified. The overall prevalence of PSV was 216 cases per 1 000 000 inhabitants (95% confidence interval (CI) 173-259) in northern Germany vs 195 (95% CI 153-236) in southern Germany. The prevalence of PSV was two-fold higher in women than in men, and five-fold higher in people aged > or =50 yr than in people aged <50 yr. The most frequent type of PSV was giant cell arteritis (GCA), with 87 cases per 1 000 000 in northern and 94 in southern Germany, followed by Wegener's granulomatosis, with 58 and 42 cases respectively. In the population aged > or =50 yr the prevalence of GCA was 240 per 1 000 000 in northern and 300 in southern Germany. In both northern and southern Germany the prevalence of GCA in this older population was significantly higher in urban than in rural populations (355 per 1 000 000 vs 115 in northern Germany (P<0.01) and 395 vs 220 (P<0.05) in southern Germany). The relative risk for the older urban population having GCA was 2.25-fold higher (95% CI 1.4-3.6) than in the rural population, and for the female population it was 4.7-fold higher in the urban than in the rural areas (95% CI 2.4-9.3)., Conclusion: In both northern and southern Germany, GCA was significantly more prevalent in urban than in rural populations, especially among people aged > or =50 yr and in women. It remains unclear whether this disparity was due to underdiagnosis of GCA in the rural regions associated with differences in the German health-care system in cities vs rural areas. Further studies must examine the role of (chronic) exposure to the environmental factors characteristic of cities.

The guideline "Joint Swelling" is addressed to primary care physicians--general practitioners, internists or orthopedists without special experience in rheumatology. It provides a framework for interviewing patients, as well as for physical, laboratory and imaging examinations and for selection of treatment appropriate to the level of primary care. Situations which call for urgent evaluation and criteria for referral to rheumatologists are described. The appendix contains comments on signs and symptoms to differentiate arthralgia from joint swelling and on the diagnostic value of a history of joint swelling without confirmation by the physician. Further recommendations for the evaluation of patient history and physical and technical examinations are given in a tabular form. The significance of laboratory and imaging procedures is discussed.

The society of physicians of Germany and the society of panel physicians laid down in the "assessment criteria for guidelines in medical care" what kind of demands the medical selfadministration makes on guidelines. This measure also had the goal to support and strengthen the efforts of the AWMF for guidelines of high value. On the basis of these assessment criteria, a tool was compiled for the systematic registration and documentation of quality criteria for good guidelines for the first time in areas of German language. This check list is guided by the structure and content of the "Criteria for Appraisal for National Guidelines" by the Scottish Intercollegiate Guidelines Network.

Assessing working capacity in patients with chronic nonspecific pain disorders applying for disability pensions is a core tasks of practical social medicine. Traditionally the evaluation focused on the nosological classification and clinical description of the pain disorder with rather vague concepts of its consequences in terms of disabilities and handicaps. The author proposes to reverse the sequence. Following the International Classification of Impairments, Disabilities and Handicaps (WHO 1980) work incapacity can be seen as an "occupational handicap". Its qualities, severity and credibility depend on the existence of objectifyable disabilities (especially behaviour, locomotor, body disposition, dexterity and situational disabilities). These may be attributed to clinical impairments and an underlying disease process. Among impairments pain has to be assessed multidimensionally. As in clinical medicine a nosological diagnosis is a useful but neither necessary nor sufficient prerequisite for a sociomedical evaluation of pain patients.

Objective: To translate the Health Assessment Questionnaire Disability Index (HAQ) into a German version, to validate and to compare its properties with two different versions of the Hannover Functional Ability Questionnaire (HFAQ) in a German speaking population., Methods: The test-retest reliability was tested by Pearson correlation in 32 outpatients of the Department of Rheumatology of the Medizinische Hochschule Hannover. For retesting, the questionnaire was mailed to them 1 week later. To validate the questionnaire it was administered to 110 inpatients in three different hospitals. All patients fulfilled the American College of Rheumatology 1987 revised criteria of rheumatoid arthritis (RA) or the Rome criteria of definitive inactive RA. The internal consistency was measured by Cronbach's coefficient alpha (CCA). To assess criterion validity we compared the HAQ and the two versions of the HFAQ with Keitel's test (KT) and the modified Steinbrocker classification (mSC). Construct validity was assessed by comparing these instruments with different clinical and laboratory variables. A multivariate analysis was used to identify the most important factors that are influencing the HAQ- and HFAQ-scores., Results: Test-retest reliability of the HAQ was r = 0.94. CCA was 0.91 (HAQ), 0.90 (HFAQ-P) and 0.93 (HFAQ-PR). The KT Pearson correlation coefficients reached r = -0.73 (HAQ), r = +0.74 (HFAQ-P) and r = +0.71 (HFAQ-PR). The mSC correlated r = +0.75 (HAQ), r = -0.72 (HFAQ-P) and r = -0.70 (HFAQ-PR). The correlation coefficients of HAQ/HFAQ-P was r = -0.87 and of HAQ/HFAQ-PR r = -0.88. The correlations between other clinical and laboratory variables reached from r = +/-0.58 (pain/HAQ) to r = +/-0.11 (number of swollen joints/HFAQ-PR). In backward multiple regression analysis 59-64% of the variance of disability measured by the questionnaires was explained predominantly by pain (32-33%) and by range of motion (16-21%)., Conclusion: The German version of the HAQ presented here and the two versions of the HFAQ are reliable and valid instruments for measuring functional disability in a German-speaking population with RA. The construct measured by the HAQ and both versions of the HFAQ showed a high degree of correspondence.

The objectives of this study are: (a) to determine the occurrence of permanent work disability (PWD) in early rheumatoid arthritis (RA); (b) to identify prognostic groups of patients; (c) to assess the employment rates for these groups over time. Seventy-three gainfully employed consecutive out-patients with early RA (> or = 5 ARA 1958 criteria, disease duration < or = 12 months) at time one (T1) were re-examined at time two (T2) after a mean follow-up of 6 yr (S.D. +/- 2 yr). Potential risk factors, identified at T1, for PWD at T2 were entered in a tree structured survival analysis using RECPAM (RECursive Partition and AMalgamation). Cumulative 3 yr employment rates (3-yrER +/- S.E.M.) were computed from the resulting Kaplan-Meier curves. At T2, PWD occurred in 27 of the 73 patients (37%). The fastest decline in the employment rate was found within the first 3 yr of the disease onset, with a 3-yrER reduced to 73 +/- 5%. The group with the poorest prognosis (n = 14; 3-yrER 14 +/- 9%) was defined by age > or = 50 yr with either ESR > or = 60 mm/h or the combination of modified functional class (1-7) > or = 4 with a disease duration > or = 7 months. An intermediate group (n = 38; 3-yrER 79 +/- 6%) was defined by (a) age > or = 50 yr and low or moderate disease activity, (b) age < 50 yr and more strenuous job-related physical requirements, (c) age < 50 yr and less strenuous work, but joint count > or = 15. No case of PWD occurred in 21 individuals aged < 50 yr with a joint count < 15 and less physically demanding jobs. PWD occurs early in a substantial number of patients with RA. RECPAM defines risk profiles that can readily be applied in actual clinical situations and allow an estimation of the risk of PWD at different time points using the resulting Kaplan-Meier curves.

All available data presented show that we are confronted with a back-pain (BP) epidemic; it affects numerous industrialized countries. More severe forms of BP make up one fifth of the prevalence. The greater part of BP seems to be mild, especially among persons aged 25 to 54. The social insurance statistics, too, show an alarming trend. Cases of work incapacity and medical rehabilitation have increased drastically: one sixth of all cases of work incapacity as well as one third of all medical rehabilitations are to be accounted to BP. It is not easy to interpret the data. Do they represent an increasing BP epidemic? A long-term secular trend towards higher BP prevalences at the population level is to be assumed but cannot be proven at the moment. Is there any evidence that BP-related risk factors have increased? To our knowledge there are no reliable data. It is also to be considered that the 'natural' course of BP may have changed. Is the epidemic a consequence of an increasing 'chronification' of BP due to physical, psychosocial or medical influences? Do 'back-schools' and other factors regarding the BP business have only health-promoting effects? Does the date represent a changing perception and appraisal of pain and/or a changing 'pain-reporting behaviour'? Is 'pain' today what would have been 'discomfort' in former times? Does one complain about BP today when one would have been silent in former times? There are no valid data for these hypotheses, either. Finally, has the transition probability from pain to disability and to social benefits changed?(ABSTRACT TRUNCATED AT 250 WORDS)

Back pain is occurring in a broad spectrum of severity; therefore, a grading procedure which is derived from a sound conceptual basis and can be easily applied is of crucial importance in clinical research and in epidemiologic studies. Following a grading procedure which has been developed in epidemiologic studies in the U.S., a hierarchical model for grading is proposed. This comprises pain intensity and functional limitation as basic criteria as well as aspects of time, pain-related cognitions/emotions and concomitant complaints. An application of a simple grading procedure is used to illustrate the predictive utility of the proposed model.

Rheumatic diseases, particularly those affecting the back, cervical spine, and the joints, are widespread in the general population. The general costs, especially those associated with social medical services, show constant increases. Time and effectiveness lost from work due to back problems in the FRG accounted for most of the days off the job because of disability, time spent in the hospital or at a health spa facility. Therefore, the appropriate evaluation of the degree of disability plays an increasingly important role in the area of social benefits. Yet unambiguous and objective physical measurements of the disease and the degree of associated disability are lacking in most cases of rheumatic diseases. More attempts to address the subjective aspects of the disease should be included in such evaluations. For recent years, models of measurement have been developed and tested, which are suited to the multidimensional nature of rheumatic illnesses. It is recommended that these be introduced in routine use for physical evaluations.

The aim of the study was the evaluation of a potential selection process for patients with rheumatoid arthritis (RA) referred to the Mobile Service for Rheumatics in Hannover (MSRH). The MSRH is the only referral center for patients with inflammatory rheumatic diseases in Hannover. A comparison of the health status was made between 58 individuals with RA identified in a population study, and 103 RA patients from the MSRH. The following disease parameters were less favorable in the clinical group: duration of morning stiffness, functional capacity, number of swollen joints, rheumatoid factor, ESR, disease activity, and classical RA according to the Rome-criteria. Only 22% of the individuals with RA identified in the population study have been referred to the MSRH. These patients more frequently had definite or classical RA (statistically not significant: p = 0.17, p = 0.11, respectively). It was shown that the clinical group comprised more severe RA cases. Thus, data from such patients may not be generalized for the entire group of RA cases in the population.

During the last few years epidemiologic research on rheumatic diseases in the Federal Republic of Germany has been sponsored, primarily, by the Ministry of Research and Technology. The projects, either completed, ongoing or planned, concentrate on health services research, population studies of the prevalence of specific diseases or complaints (rheumatoid arthritis, back pain, juvenile chronic arthritis, osteoarthritis) and clinical epidemiology, especially concerning early arthritis. As a result of the general shortage of public funds, less projects could be sponsored than expected. The aim of the Ministry to establish research organizations that will continue to exist even if public funding is curtailed seems to be jeopardized. Therefore, not only the federal government, but also the federal states and institutions like the Deutsche Forschungsgemeinschaft should be engaged in this field. More groups should have the opportunity to work in epidemiology of rheumatic diseases, and groups which are able to work in close connection with basic scientists and rheumatological clinicians should be institutionally affiliated on a permanent basis. This is critical for the further development of this discipline which is important for health services research, quality assurance, as well as for analytical research and prevention.

This work presents results of a quasiexperimental prospective cohort study of the medium-term course of chronic rheumatoid arthritis (RA) under two different conditions of care. During 1984-1986 a total of 262 patients was recruited. All were new referrals to a university outpatient department. 121 came from the city of Hannover, FRG, and were assigned to comprehensive team care (cc) provided by two rheumatologists, a nurse, physician's assistant, occupational therapist, psychologist, and social worker; 141 came from outside Hannover and received care from a physician in training for internal medicine/rheumatology and a nurse, supervised by a senior registrar (TC). The patients in the first group were significantly older (57 vs 51 years), had more active disease (ESR 44 vs 31 mm/h), were more disabled (functional capacity 69 vs 78%), more often lived alone (27 vs 10%) and were more depressed compared with patients in the second group. There were no significant differences in gender (80% female), number of Rome criteria (5.2), and disease duration (6 years) between the two groups. 179 patients were followed for 2 years. There was no demonstrable difference between those who dropped out and those who continued in the study. Patients from both groups showed significant and clinically important improvements in ESR and number of swollen joints, whereas functional capacity and pain intensity did not change. Depression and patients' global self-rating improved only in the CC-group. Analyses adjusting for differences between the two groups were unable to show a different efficacy for either form of care.(ABSTRACT TRUNCATED AT 250 WORDS)

The fibromyalgia syndrome (FMS) is an extraarticular rheumatic disease. Typical features are the chronic, polytopic pain in the musculoskeletal system and the provocation of pain by pressure on defined tender points. Mainly medium age women are affected by the disease. In histomorphological studies of muscle tissue non-specific changes were demonstrated, which were thought to be due to ischemia. Furthermore, sleep disturbance and a reduced pain threshold, which may be related to psychological factors, are discussed in the etiology. In FMS a primary and a secondary form related to other diseases can be differentiated. The treatment consists mainly of behaviour therapy and physiotherapy.

Human fibroblasts in primary culture released reactive oxygen species upon exposure to synovial fluid obtained by joint aspiration from twelve patients suffering from rheumatoid arthritis. The primary radical produced was O2- as determined by ESR spin trapping and cytochrome c reduction. In contrast to the oxidative burst in granulocytes and monocytes, radical formation proceeded continuously for at least four hours. Low-level chemiluminescence was increased upon exposure to inflammatory human synovial fluids. Spectral characteristics and effects of azide and 1,4-diazabicyclo-(2,2,2)-octane led to the conclusion that the photoemissive species were excited carbonyls. Radical production and light emission were not altered either by xanthine or allopurinol, nor by azide, cyanide or rotenone. The O2- production increased in the presence of NADH or NADPH, making an NAD(P)H oxidase a likely source. The liberation of reactive oxygen species correlated with the number of leukocytes present in the inflammatory joint fluids, but not with the concentrations of immunoglobulins and complement factor C3.

Pain intensity and sensory dimensions of pain experience were studied in four samples totalling 346 patients with rheumatoid arthritis. 35%-61% of these patients suffer from severe pain. Arthritic pain is not automatically associated with emotional disorder. However, we met significant correlations of pain intensity with depression, trait anxiety, and state anxiety. Three hypotheses about the relation between pain and emotional state are discussed. Within one third of the patients we observed a paradoxical pain-mood pattern. Within the greater part of the patients severe pain is accompanied by considerable emotional suffering. The question of whether pain intensity is the cause of or the result from depression cannot be answered. However, predicting pain intensity from depression scores is much easier than predicting depression from pain intensity.