Predictors of employment in young adults with psychiatric work disability.

AIM: Mental disorders are the leading cause of work disability among young adults in the industrialized world. Factors predicting employment after long-term psychiatric work disability are largely unknown. METHODS: We linked personal and clinical information from the benefit applications and medical certificates of 1163 young adults (18-34 years) with a new-onset fixed-term psychiatric disability pension in 2008 with employment records between 2005 and 2013. The outcomes were starting employment during and being employed at the end of follow-up. RESULTS: Of the participants, 48% had been employed during and 22% were employed at the end of follow-up. Sustained employment history, university education (master's degree) and no recorded psychological symptoms in childhood were associated with both subsequent employment outcomes. Women and participants under 25 years were more likely to start employment. Depression and other mental disorders (vs psychotic diagnose) and having no comorbid mental disorders or substance abuse were associated with employment at the end of follow-up. CONCLUSIONS: Sustained employment history, university education and no recorded psychological symptoms during childhood predict a return to employment among young adults after a fixed-term psychiatric work disability pension. Pro-active interventions in psychological problems during childhood could enhance employment after a period of work disability.

Activity of rheumatoid arthritis correlates with oral inflammatory burden.

To study oral health in patients with rheumatoid arthritis (RA) with emphasis on disease activity and treatment of RA. In this prospective cohort study 81 RA patients [53 early untreated RA (EURA) and 28 chronic RA (CRA) patients with inadequate response to synthetic disease modifying antirheumatic drugs (DMARDs)], underwent rheumatological [Disease Activity Score (28-joint) DAS28] and dental examinations [Total Dental Index (TDI), Decayed Missing Filled Teeth (DMFT) and Decayed Missing Filled Surfaces (DMFS)]. For controls, 43 volunteers were examined. After the examinations, EURA patients started treatment with synthetic DMARDs, oral and intra-articular glucocorticoids. CRA patients were candidates for biological DMARDs. The patients were re-examined mean 16 months later. Results were analyzed with descriptive statistics and logistic regression. TDI was higher in both RA groups at baseline compared to controls [EURA: 2 (2-3); CRA: 2 (1-3); controls 1 (1-3), p = 0.045]. DMFT [rs 0.561 (p = 0.002)] and DMFS [rs 0.581 (p = 0.001)] associated with DAS28 at baseline in CRA patients. After follow-up, DAS28 associated positively with DMFT [rs 0.384 (p = 0.016)] and DMFS [rs 0.334 (p = 0.038)] in EURA patients; as well as in CRA patients DMFT [rs 0.672 (p = 0.001)], DMFS [rs 0.650 (p = 0.001)]. RA patients already in the early phase of the disease had poorer oral health compared to controls. The caries indices associated with the activity of RA in both patient groups. Oral status may thus contribute to the development and further relate to the activity of RA.

Anti-rheumatic medication and salivary MMP-8, a biomarker for periodontal disease.

OBJECTIVE: To investigate the impact of anti-rheumatic medications on salivary matrix metalloproteinase (MMP)-8 levels and MMP-8/TIMP (tissue inhibitor of MMPs)-1 ratio in patients with rheumatoid arthritis (RA) and periodontal findings during a 1-year follow-up. MATERIALS AND METHODS: Salivary MMP-8 was measured by an immunofluorometric assay and TIMP-1 by an enzyme-linked immunosorbent assay of 53 patients with early untreated RA (ERA), naïve to synthetic disease modifying anti-rheumatic drugs (DMARDs), of 28 patients with chronic RA (CRA), candidates for biologic DMARDs and of 43 age- and sex-matched controls. Periodontal health was evaluated by bleeding on probing (BOP), pocket depth (PD), and periodontal inflammatory burden index (PIBI). Examinations were conducted twice for RA patients and once for controls. RESULTS: Salivary MMP-8 level and MMP-8/TIMP-1 ratio associated positively with PIBI in patients with chronic RA (MMP-8: p < 0.001 at baseline, p = 0.002 after follow-up; MMP-8/TIMP-1 ratio p < 0.001, p = 0.003, respectively) and in controls (MMP-8: p = 0.010, MMP-8/TIMP-1 ratio: p = 0.010). Salivary MMP-8 levels were highest at the early stage of RA. The used DMARDs, synthetic or biologic, did not affect salivary MMP-8 concentrations. CONCLUSIONS: The use of synthetic or biologic DMARDs did not affect salivary MMP-8 levels in RA patients regardless the duration of RA.

Inflammatory biomarkers in saliva and serum of patients with rheumatoid arthritis with respect to periodontal status.

OBJECTIVE: To study prospectively the association of salivary and serum matrix metalloproteinase (MMP)-8, tissue inhibitor of MMPs (TIMP)-1 and interleukin (IL)-6 with periodontal and systemic inflammation in rheumatoid arthritis (RA). We hypothesized that biomarker concentrations reflect inflammation. METHODS: Fifty three early untreated RA (ERA) and 28 chronic RA (CRA) patients, underwent rheumatological and dental examinations at baseline and one year later after starting first conventional or biological disease modifying antirheumatic drug. We included 43 control subjects. Saliva and serum samples were analyzed for MMP-8, TIMP-1 and IL-6. Periodontal health was assessed by bleeding on probing (BOP), pocket depth (PD) and periodontal inflammatory burden index (PIBI); RA disease activity was assessed by disease activity score DAS28. Joint destruction was analyzed by the modified Sharp-van der Heijde (SHS) method. RESULTS: Serum MMP-8 (p < .001; p < .001) and IL-6 (p < .001; p = .002) were significantly higher in CRA vs. other study groups during the study. Salivary MMP-8 (p = .010) and IL-6 (p = .010) were significantly higher in ERA vs. other study groups at baseline. Salivary MMP-8 was associated with periodontal parameters. CONCLUSION: Elevated serum concentrations of MMP-8 and IL-6 in CRA patients reflected chronic RA, while elevated salivary concentrations of MMP-8 levels in ERA patients reflected increased periodontal inflammation. Key messages Concentrations of inflammatory biomarkers in serum and saliva were different between patients with RA and healthy controls. Concentrations of MMP-8 and of IL-6 in serum were elevated in patients with chronic RA reflecting joint inflammation and the burden of established RA. Concentrations of MMP-8 in saliva was elevated already at the early stage of RA and the level of salivary MMP-8 was associated with poor periodontal health both in patients with early and in those with chronic RA.

Psychotherapeutic and vocational interventions among young adults with work disability due to mental disorders in Finland.

Backround: Little is known about treatment and rehabilitation received and planned among young adults with work disability due to a mental disorder. AIMS: To examine the implemented psychotherapeutic and vocational interventions and treatment plans among young adults with work disability due to a mental disorder. MATERIAL AND METHODS: Data were collected from medical records of young Finnish adults aged 18-34 with a long-term work disability history due to a mental disorder (N = 1163). The participant characteristics associated with four types of interventions were analyzed using log-binomial regression analysis. RESULTS: In total, 34% had participated in a psychotherapeutic intervention. Of the non-students, 26% had participated in vocational intervention. For 46% of the non-students, neither type of intervention was planned. Both implemented and planned psychotherapeutic interventions were associated with female sex, high education, attachment to employment, and absence of substance abuse. Low education and childhood adversity were associated with implemented vocational interventions and absence of substance abuse with planned vocational interventions. CONCLUSION AND SIGNIFICANCE: There is an unmet need for psychotherapeutic interventions among men, among those with lower socio-economic status, and among those with poor attachment to labor market. In addition, there is a lack of vocational interventions for those with high education. People with substance abuse are largely excluded from both types of interventions.

A screening tool for the risk of disability retirement due to musculoskeletal disorders.

Objective This study aimed to develop and validate a risk screening tool using a points system to assess the risk of future disability retirement due to musculoskeletal disorders (MSD). Methods The development population, the Health 2000 Survey, consisted of a nationally representative sample of Finnish employees aged 30-60 years (N=3676) and the validation population, the Helsinki Health Study, consisted of employees of the City of Helsinki aged 40-60 years (N=6391). Both surveys were linked to data on disability retirement awards due to MSD from national register for an 11-year follow-up. Results The discriminative ability of the model with seven predictors was good (Gönen and Heller's K concordance statistic=0.821). We gave points to seven predictors: sex-dependent age, level of education, pain limiting daily activities, multisite musculoskeletal pain, history of arthritis, and surgery for a spinal disorder or carpal tunnel syndrome. A score of 3 or higher out of 7 (top 30% of the index) had good sensitivity (83%) and specificity (70%). Individuals at the top 30% of the risk index were at 29 [95% confidence interval (CI) 15-55) times higher risk of disability retirement due to MSD than those at the bottom 40%. Conclusion This easy-to-use screening tool based on self-reported risk factor profiles can help identify individuals at high risk for disability retirement due to MSD.

Prognostic factors for return to work after depression-related work disability: A systematic review and meta-analysis.

Knowledge about factors influencing return to work (RTW) after depression-related absence is highly relevant, but the evidence is scattered. We performed a systematic search of PubMed and Embase databases up to February 1, 2016 to retrieve cohort studies on the association between various predictive factors and return to work among employees with depression for review and meta-analysis. We also analyzed unpublished data from the Finnish Public Sector study. Most-adjusted estimates were pooled using fixed effects meta-analysis. Eleven published studies fulfilled the eligibility criteria, representing 22 358 person-observations from five different countries. With the additional unpublished data from the 14 101 person-observations from the Finnish Public Sector study, the total number of person-observations was 36 459. The pooled estimates were derived from 2 to 5 studies, with the number of observations ranging from 260 to 26 348. Older age (pooled relative risk [RR] 0.95; 95% confidence interval [CI] 0.84-0.87), somatic comorbidity (RR = 0.80, 95% CI 0.77-0.83), psychiatric comorbidity (RR = 0.86, 95% CI 0.83-0.88) and more severe depression (RR = 0.96, 95% CI 0.94-0.98) were associated with a lower rate of return to work, and personality trait conscientiousness with higher (RR = 1.06, 95% CI 1.02-1.10) return to work. While older age and clinical factors predicted slower return, significant heterogeneity was observed between the studies. There is a dearth of observational studies on the predictors of RTW after depression. Future research should pay attention to quality aspects and particularly focus on the role of workplace and labor market factors as well as individual and clinical characteristics on RTW.

Employment Status of Depressed Individuals in an 11-Year Follow-up: Results From the Finnish Health 2011 Survey.

OBJECTIVES: The aim of this study was to describe the employment and mental health status of persons with depressive disorders after an 11-year follow-up, and identify individual and work-related factors that predict adverse outcomes. METHODS: Two nationally representative health surveys, Health 2000 and its follow-up, Health 2011 were used, and persons with depressive disorders at baseline (n = 275) were re-interviewed after 11 years. RESULTS: Information on employment status was available for all 263 participants in 2011. About 15.7% had been granted disability pension by 2011, while 55.5% were employed and 18.2% on old-age pension. High job control was the only statistically significant predictor of lower probability of disability pension (adjusted odds ratio 0.42, 95% confidence interval [95% CI] 0.23 to 0.77). Being unmarried (adjusted odds ratio 2.99, 95% CI 1.19 to 7.52) was associated with persistent depressive disorder. CONCLUSIONS: Job control emerged as an important predictor of long-term employment outcomes among depressed individuals.

Periodontitis in early and chronic rheumatoid arthritis: a prospective follow-up study in Finnish population.

OBJECTIVES: To investigate the association between rheumatoid arthritis (RA) and periodontitis with special emphasis on the role of antirheumatic drugs in periodontal health. DESIGN: Prospective follow-up study. Patients with early untreated RA and chronic active RA were examined at baseline and 16 months later. Controls were examined once. SETTINGS AND PARTICIPANTS: The study was conducted in Finland from September 2005 to May 2014 at the Helsinki University Hospital. Overall, 124 participants were recruited for dental and medical examinations: 53 were patients with early disease-modifying antirheumatic drug (DMARD) naїve RA (ERA), 28 were patients with chronic RA (CRA) with insufficient response to conventional DMARDs. After baseline examination, patients with ERA started treatment with synthetic DMARDs and patients with CRA with biological DMARDs. Controls were 43 age-matched, gender-matched and community-matched participants. OUTCOME MEASURES: Degree of periodontitis (defined according to the Center for Disease Control and Prevention and the American Academy of Periodontology). Prevalence of periodontal bacteria (analysed from plaque samples), clinical rheumatological status by Disease Activity Score, 28-joint count (DAS28), function by Health Assessment Questionnaire (HAQ) and treatment response by European League Against Rheumatism (EULAR) criteria. RESULTS: Moderate periodontitis was present in 67.3% of patients with ERA, 64.3% of patients with CRA and 39.5% of control participants (p=0.001). Further, patients with RA had significantly more periodontal findings compared with controls, recorded with common periodontal indexes. In the re-examination, patients with RA still showed poor periodontal health in spite of treatment with DMARDs after baseline examination. The prevalence of Porphyromonas gingivalis was higher in patients with ERA with periodontal probing depth ≥4 mm compared with patients with CRA and controls. Antirheumatic medication did not seem to affect the results. CONCLUSIONS: Moderate periodontitis was more frequent in patients with RA than in controls. Patients with ERA and CRA exhibited poorer periodontal health parameters when compared with controls. There was no association between antirheumatic treatment and periodontal parameters.

Do predictors of return to work and recurrence of work disability due to mental disorders vary by age? A cohort study.

BACKGROUND: The extent to which predictors of return to work (RTW) and recurrence of work disability episodes vary by age group is not well understood. METHODS: We examined the associations of sociodemographic and clinical factors with RTW and recurrence after mental-disorder-related work disability episodes in a cohort of 10,496 Finnish public sector employees. Disability records were derived from national disability registers between 2005 and 2011. Effect modification by age was examined in age groups of 21-34, 35-50 and >50 years. RESULTS: A total of 16,551 disability episodes from mental disorders were recorded. The likelihood of RTW was elevated in age group 21-34 (hazard ratio (HR) = 1.36, 95% confidence interval (CI) = 1.28-1.46) and 35-50 years (HR = 1.22, 95% CI = 1.18-1.26) compared to age group >50 years. The risk of a recurrent episode of work disability was higher in age groups >50 (HR = 1.29, 95% CI = 1.09-1.52) and 35-50 years (HR = 1.20, 95% CI = 1.03-1.41) compared to the youngest age group. Employees with depressive disorders were less likely to RTW than employees with neurotic, stress-related and somatoform disorders, and this difference increased with age. Low education was associated with increased risk of recurrent work disability episode in age groups of 50 years or younger, while no such association was observed in age group >50 years. CONCLUSIONS: The importance of depressive symptoms over neurotic, stress-related and somatoform disorders as predictors of delayed RTW increases with age, whereas educational differences in the recurrence of an episode diminish by age.

Psychotherapeutic and work-oriented interventions: employment outcomes among young adults with work disability due to a mental disorder.

BACKGROUND: We examined the extent to which psychotherapeutic and work-oriented interventions were included in a medical treatment and rehabilitation plan and whether they predicted future employment among young adults with work disability due to a mental disorder. METHODS: Data were obtained from the treatment and rehabilitation plans of 1163 young adults aged 18‒34 years, who in 2008 were granted fixed-term work disability compensation due to a mental disorder and were followed for 5 years. RESULTS: Forty-six percent had no proposal for psychotherapy or a work-oriented intervention in their treatment and rehabilitation plan, 22 % had a plan for only a psychotherapeutic intervention, 23 % had a plan for only a work-oriented intervention, and 10 % had both types of interventions planned. Having a planned psychotherapeutic intervention (HR = 1.35, 95 % CI 1.07-1.69) and of the work-oriented interventions, planned rehabilitative courses and training (HR = 1.34, 95 % CI 1.03-1.70) predicted quicker entry into competitive employment. Having a plan for both a psychotherapeutic and work-oriented intervention was associated with being employed at the end of the follow-up (OR = 1.77, 95 % CI 1.07-2.95). CONCLUSIONS: Young adults with a long-term psychiatric work disability episode rarely have a recorded plan for rehabilitation in their treatment and rehabilitation plan although psychotherapeutic interventions and a combination of a psychotherapeutic and work-oriented intervention might help them gain employment.

Attachment to employment and education before work disability pension due to a mental disorder among young adults.

BACKROUND: We examined attachment to employment and education among young adults before they were granted a fixed-term work disability pension due to psychiatric diagnosis, and the factors associated with this attachment. METHODS: The data comprised all persons aged 18-34 who received a new-onset fixed-term disability pension compensation due to a mental disorder in Finland in 2008 (N = 1163). The data were derived from pension applications and the enclosed medical records, and were linked to employment records from a period of three years before the disability pension. We analysed the factors associated with attachment to employment or education with log-binomial regression analysis. RESULTS: Fifty percent of the participants were attached to employment or education before work disability pension. The attached were more often women; had higher basic and vocational education; had mood disorder rather than psychosis diagnosis as a primary diagnosis; and had no record of harmful alcohol use or drug use, or recorded symptoms of mental disorders already at school-age. CONCLUSIONS: The level of attachment to employment or education before work disability pension is low among young adults with mental disorders and several risk factors predict poor attachment; severe or comorbid mental disorder, early-life psychiatric morbidity, substance use, male sex, low basic education, and lacking vocational education.

Is there an independent association between burnout and increased allostatic load? Testing the contribution of psychological distress and depression.

Burnout has been suggested to be related to depression. We examined the relationship between burnout and allostatic load, and whether this association is independent of psychological distress and depression. We measured burnout psychological distress, depression, and allostatic load in 3283 participants. Higher burnout (ß = 0.06, p =0.003) and cynicism (ß = 0.03, p = 0.031) and decreased professional efficacy (ß = 0.03, p = 0.007) were related to higher allostatic load independent of age, sex, education, occupation and psychological distress. Depression, however, explained 60 percent of the association. Burnout is related to higher allostatic load, and this association partly overlaps with co-occurring depression.

Clustering of adversity in young adults on disability pension due to mental disorders: a latent class analysis.

PURPOSE: Mental disorders are the leading cause of work disability among young adults. This study examined whether distinct classes could be identified among young adults on the basis of medical history before receiving a disability pension due to a mental disorder. METHODS: Medical history was obtained from pension applications and attached medical certificates for 1163 individuals aged 18-34 years who, in 2008, received a disability pension due to a mental disorder. Using latent class analysis, 10 clinical and individual adversities and their associations with sex, age and diagnostic category were examined. RESULTS: Three classes were identified: childhood adversity (prevalence, 33%), comorbidity (23%), and undefined (44%). The childhood adversity class was characterized by adverse events and symptoms reported during childhood and it associated with depressive disorders. The comorbidity class was characterized by comorbid mental disorders, suicide attempts and substance abuse and associated with younger age and bipolar disorder. The undefined class formed no distinct profile; individuals in this class had the lowest number of adversities and it associated with psychotic disorders. CONCLUSIONS: The identification of subgroups characterized by childhood circumstances and comorbidity may help planning of prevention and support practices for young adults with mental disorders and risk of work disability.

Return to work after depression-related absence by employees with and without other health conditions: a cohort study.

OBJECTIVE: Among employees with depression, diagnoses of other psychiatric and somatic conditions are common. However, few studies have examined whether the combined presence of depression and other psychiatric or somatic disorders adversely affects return to work after depression-related absence from work. METHODS: We examined the association of present and recent psychiatric and somatic conditions and return to work after depression-related absence in a cohort of 9908 Finnish public sector employees with at least one such episode. The data included a total of 14,101 episodes during the period January 2005 to December 2011. RESULTS: A total of 89% (n = 12,486) of depression-related absence episodes ended in return to work during the follow-up. For those episodes, the median length of absence was 34 days (interquartile range, 20-69 days). After adjustment for sex, age, socioeconomic status, and type of employment contract, present or recent psychiatric disorders other than depression (hazard ratio [HR] = 0.78, 95% confidence interval [CI] = 0.74-0.83), cancer (HR = 0.66, 95% CI = 0.47-0.92), diabetes (HR = 0.73, 95% CI = 0.62-0.86), cardiovascular disease (HR = 0.78, 95% CI = 0.62-0.99), hypertension (HR = 0.76, 95% CI = 0.67-0.85), musculoskeletal disorders (HR = 0.82, 95% CI = 0.77-0.87), and asthma (HR = 0.84, 95% CI = 0.75-0.94) were all associated with a lower likelihood of returning to work compared with depression episodes without other conditions. CONCLUSIONS: Among employees with depression-related absence, return to work is delayed in the presence of other psychiatric and somatic conditions. These findings suggest that other diseases should be taken into account when evaluating the outcome of depression-related absence. Randomized controlled trials are needed to examine whether integrated treatment of mental and physical disorders improves successful return to work after depression.

Long working hours and alcohol use: systematic review and meta-analysis of published studies and unpublished individual participant data.

OBJECTIVE: To quantify the association between long working hours and alcohol use. DESIGN: Systematic review and meta-analysis of published studies and unpublished individual participant data. DATA SOURCES: A systematic search of PubMed and Embase databases in April 2014 for published studies, supplemented with manual searches. Unpublished individual participant data were obtained from 27 additional studies. REVIEW METHODS: The search strategy was designed to retrieve cross sectional and prospective studies of the association between long working hours and alcohol use. Summary estimates were obtained with random effects meta-analysis. Sources of heterogeneity were examined with meta-regression. RESULTS: Cross sectional analysis was based on 61 studies representing 333,693 participants from 14 countries. Prospective analysis was based on 20 studies representing 100,602 participants from nine countries. The pooled maximum adjusted odds ratio for the association between long working hours and alcohol use was 1.11 (95% confidence interval 1.05 to 1.18) in the cross sectional analysis of published and unpublished data. Odds ratio of new onset risky alcohol use was 1.12 (1.04 to 1.20) in the analysis of prospective published and unpublished data. In the 18 studies with individual participant data it was possible to assess the European Union Working Time Directive, which recommends an upper limit of 48 hours a week. Odds ratios of new onset risky alcohol use for those working 49-54 hours and ≥ 55 hours a week were 1.13 (1.02 to 1.26; adjusted difference in incidence 0.8 percentage points) and 1.12 (1.01 to 1.25; adjusted difference in incidence 0.7 percentage points), respectively, compared with working standard 35-40 hours (incidence of new onset risky alcohol use 6.2%). There was no difference in these associations between men and women or by age or socioeconomic groups, geographical regions, sample type (population based v occupational cohort), prevalence of risky alcohol use in the cohort, or sample attrition rate. CONCLUSIONS: Individuals whose working hours exceed standard recommendations are more likely to increase their alcohol use to levels that pose a health risk.

Prevalence and correlates of major depressive disorder and dysthymia in an eleven-year follow-up--results from the Finnish Health 2011 Survey.

BACKGROUND: Up-to-date epidemiological data on depressive disorders is needed to understand changes in population health and health care utilization. This study aims to assess the prevalence of major depressive disorder (MDD) and dysthymia in the Finnish population and possible changes during the past 11 years. METHODS: In a nationally representative sample of Finns aged 30 and above (BRIF8901), depressive disorders were diagnosed with the Composite International Diagnostic Interview (M-CIDI) in 2000 and 2011. To account for nonresponse, two methods were compared: multiple imputation (MI) utilizing data from the hospital discharge register and from the interview in 2000 and statistical weighting. RESULTS: The MI-corrected 12-month prevalence of MDD was 7.4% (95% CI 5.7-9.0) and of dysthymia was 4.5% (95% CI 3.1-5.9), whereas the corresponding figures using weights were 5.4% (95% CI 4.7-6.1) for MDD and 2.0% (95% CI 1.6-2.4) for dysthymia. Women (OR 2.33, 95% CI 1.6-3.4) and unmarried people (OR 1.54, 95% CI 1.2-2.0) had a higher risk of depressive disorders. There was a significant increase in the prevalence of depressive disorders during the follow-up period from 7.3% in 2000 to 9.6% in 2011. Prevalences were two percentage points higher, on average, when using MI compared to weighting. Hospital treatments for depressive disorders and other mental disorders were strongly associated with nonparticipation. LIMITATIONS: The CIDI response rate dropped from 75% in 2000 to 57% in 2011, but this was accounted for by MI and weighting. CONCLUSIONS: Depressive disorders are a growing public health concern in Finland. Non-participation of persons with severe mental disorders may bias the prevalence estimates of mental disorders in population-based studies.

The role of psychiatric, cardiometabolic, and musculoskeletal comorbidity in the recurrence of depression-related work disability.

BACKGROUND: Comorbid psychiatric disorders, cardiovascular disease, chronic hypertension, diabetes, and musculoskeletal disorders are highly prevalent in depression. However, the extent to which these conditions affect the recurrence of depression-related work disability is unknown. The specific aims of the study were to investigate the extent to which comorbid other psychiatric disorders, cardiometabolic, and musculoskeletal conditions were associated with the recurrence of depression-related work disability among employees who had returned to work after a depression-related disability episode. METHODS: A cohort study of Finnish public sector employees with at least one depression-related disability episode during 2005-2011 after which the employee had returned to work (14,172 depression-related work disability episodes derived from national health and disability registers for 9,946 individuals). We used Cox proportional hazard models for recurrent events. RESULTS: Depression-related work disability recurred in 35% of the episodes that had ended in return to work from a previous episode, totaling 4,927 recurrent episodes among 3,095 (31%) employees. After adjustment for sex, age, socioeconomic status, and type of employment contract, comorbid psychiatric disorder (hazard ratio = 1.82, 95% CI 1.68-1.97), cardiovascular disease (1.39, 95% CI 1.04-1.87), diabetes (1.43, 95% CI 1.11-1.85), chronic hypertension (1.33, 95% CI 1.11-1.58), and musculoskeletal disorder (1.17, 95% CI 1.06-1.28) were associated with an increased risk of a recurrent episode compared to those without these comorbid conditions. CONCLUSIONS: Recurrence of depression-related work disability is common. Employees with comorbid psychiatric, cardiometabolic, or musculoskeletal conditions are at an increased risk of recurrent depression-related work disability episodes.

Job strain as a risk factor for type 2 diabetes: a pooled analysis of 124,808 men and women.

OBJECTIVE: The status of psychosocial stress at work as a risk factor for type 2 diabetes is unclear because existing evidence is based on small studies and is subject to confounding by lifestyle factors, such as obesity and physical inactivity. This collaborative study examined whether stress at work, defined as "job strain," is associated with incident type 2 diabetes independent of lifestyle factors. RESEARCH DESIGN AND METHODS: We extracted individual-level data for 124,808 diabetes-free adults from 13 European cohort studies participating in the IPD-Work Consortium. We measured job strain with baseline questionnaires. Incident type 2 diabetes at follow-up was ascertained using national health registers, clinical screening, and self-reports. We analyzed data for each study using Cox regression and pooled the study-specific estimates in fixed-effect meta-analyses. RESULTS: There were 3,703 cases of incident diabetes during a mean follow-up of 10.3 years. After adjustment for age, sex, and socioeconomic status (SES), the hazard ratio (HR) for job strain compared with no job strain was 1.15 (95% CI 1.06-1.25) with no difference between men and women (1.19 [1.06-1.34] and 1.13 [1.00-1.28], respectively). In stratified analyses, job strain was associated with an increased risk of diabetes among those with healthy and unhealthy lifestyle habits. In a multivariable model adjusted for age, sex, SES, and lifestyle habits, the HR was 1.11 (1.00-1.23). CONCLUSIONS: Findings from a large pan-European dataset suggest that job strain is a risk factor for type 2 diabetes in men and women independent of lifestyle factors.