Disability Pension Award Research Articles

Economic Evaluation of Inpatient Multimodal Occupational Rehabilitation vs. Outpatient Acceptance and Commitment Therapy for Sick-Listed Workers with Musculoskeletal- or Common Mental Disorders

Purpose: To evaluate the cost-effectiveness and cost-benefit of inpatient multimodal occupational rehabilitation (I-MORE) compared to outpatient acceptance and commitment therapy (O-ACT) for individuals sick listed due to musculoskeletal- or common mental disorders during two-years of follow-up. Methods: We conducted an economic evaluation with a societal perspective alongside a randomized controlled trial with 24 months follow-up. Individuals sick listed 2 to 12 months were randomized to I-MORE (n = 85) or O-ACT (n = 79). The outcome was number of working days. Healthcare use and sick leave data were obtained by registry data. Results: Total healthcare costs during the 24 months was 12,057 euros (95% CI 9,181 to 14,933) higher for I-MORE compared to O-ACT, while the difference in production loss was 14,725 euros (95% CI -1,925 to 31,375) in favour of I-MORE. A difference of 43 (95% CI -6 to 92) workdays, in favour of I-MORE, gave an incremental cost-effectiveness ratio of 278 euros for one workday, less than the cost of one day production (339 euros). Net societal benefit was 2,667 euros during two years of follow-up. Conclusion: Despite considerable intervention costs, the lower production loss resulted in I-MORE being cost-effective when compared to O-ACT. Based on economic arguments, I-MORE should be implemented as a treatment alternative for individuals on long-term sick leave. However, more research on subgroup effects and further follow-up of participants’ permanent disability pension awards are warranted.

Disability pension among persons with chronic disease: Differential impact of a Danish policy reform.

In 2013, Denmark implemented a reform that tightened the criteria for disability pension, expanded a subsidized job scheme ('flexi-job') and introduced a new vocational rehabilitation scheme. The overall aim of the reform was to keep more persons attached to the labour market. This study investigates the impact of the reform among persons with chronic disease and whether this impact differed across groups defined by labour market affiliation and chronic disease type. The study was conducted as a register-based, nationwide cohort study. The study population included 480809 persons between 40 and 64 years of age, who suffered from at least one of six chronic diseases. Hazard ratios (HR) and 95% confidence intervals (CI) of being awarded disability pension or flexi-job in the 5 years after vs. the 5 years prior to the reform were estimated. Overall, the probability of being awarded disability pension was halved after the reform (HR = 0.49, CI: 0.47-0.50). The impact was largest for persons receiving sickness absence benefits (HR = 0.31, CI: 0.24-0.39) and for persons with functional disorders (HR = 0.38, CI: 0.32-0.44). Also, the impact was larger for persons working in manual jobs than for persons working in non-manual jobs. The probability of being awarded a flexi-job was decreased by one-fourth (HR = 0.76, CI: 0.74-0.79) with the largest impact for high-skilled persons working in non-manual jobs. Access to disability pension and flexi-job decreased after the reform. This impact varied according to labour market affiliation and chronic disease type.

Disability pension among persons with chronic illness: Differential impact of a Danish policy reform

Abstract Background Denmark implemented a reform in 2013 that tightened the disability pension criteria and expanded a subsidized job scheme. Before the reform, disability pensions were most often granted because of chronic disease and more often to persons with low job qualifications. However, no evaluation has assessed whether the effects of the reform differ according to social class. This register-based, nation-wide cohort study investigates potential differential impact of the reform according to labor market affiliation. Methods A pre-post study design was used to compare the probability of being granted disability pension or flexi-jobs five years after vs. five years before the reform. Data were available from 480,809 persons between 40 and 65 years of age who suffered from at least one of six types of chronic disease. Hazard ratios (HR) and 95% confidence intervals (CI) were estimated. Results The probability of being granted disability pension was halved after the reform (HR = 0.49, CI: 0.47 - 0.50). The impact was strongest for persons previously receiving cash benefits (HR = 0.38, CI: 0.33-0.43) or sickness absence benefits (HR = 0.31, CI: 0.24 - 0.39). Also, the impact was stronger for persons working in manual jobs than for persons working in non-manual jobs. The probability of being granted flexi-job decreased by one fourth (HR = 0.76, CI: 0.74 - 0.79). Conclusions After the reform, it was less likely for persons with chronic illness to be awarded disability pension or subsidized job-schemes. The impact on disability pensions was largest among those who were already outside the labor market or work in manual jobs. Key messages The rates of disability pensions and subsidized job-schemes decreased after the reform. The impact was larger for persons outside the labor market and for those working in manual jobs.

Psychotropic drug purchases among Finnish disability pension applicants with mental disorders

Abstract Purpose Trajectories of psychotropic drug purchases around disability pension process have only been studies among awarded applicants. The aim was to follow and compare psychotropic drug purchases between awarded and rejected applicants before and after the application ruling, and to analyse whether such differences are affected by diagnostic group and sociodemographic background. Methods A representative 70% sample of Finnish adults applying disability pension due to mental or behavioral disorder in 2009-2011 (N = 18,087) were followed for four eight years in three-month periods. Registers of purchased psychotropic drugs measured in defined daily doses (DDDs), gender, age, occupational class, unemployment history, and diagnostic group were used. The DDD levels and trends were analysed using growth curve models. Results The average purchased DDDs of psychotropic drugs increased before the application ruling and decreased gradually thereafter among both awarded and rejected applicants. Before the application ruling the DDD level was higher for the rejected applicants. However, the increase in DDDs was steeper for awarded applicants. The inversed U-curve of purchase amount was most prominent awarded applicants in diagnostic groups of bipolar disorders, depression, anxiety disorders and schizophrenia. The results partly varied between sociodemographic groups. Conclusions The early high level of psychotropic drug purchases of rejected disability pension applicants signals long running ill-health, calling for earlier measures to uphold their functional ability. Respectively, for awarded applicants, the steep DDD increase before the ruling may reflect accurate identification of worsening condition but also access to precise treatment. Key messages Rejected disability pension applicants with mental disorders suffer from long-running mental ill-health, calling for earlier measures to uphold their mental health and prevent the pension process. Awarded disability pension applicants with mental disorders may have access to more precise treatment, but their worsening condition appear to be accurately identified by Finnish system.

Sources of income following a rejected disability pension application: a sequence analysis study

Purpose: To identify different income trajectories after a rejected disability pension application and to analyze socio-demographic and disability process related determinants of these trajectories.Methods: Finnish residents aged 18–58 years with a first rejected disability pension application in 2010 (N = 3683) were followed for 48 months with register data. We performed a sequence analysis of six income sources (employment, unemployment benefit, sickness allowance, rehabilitation benefit, awarded disability pensions, other/unknown). Multinomial logistic regression was used in analyses.Results: Four clusters were identified, displaying unemployment, awarded disability pension, employment, or unknown source as the primary source of post-rejection income. Transitions between income sources were frequent, especially in the employment and unemployment clusters. Using the awarded pension cluster as the reference group, previous unemployment raised the odds of unemployment cluster membership the most. Similarly, previous employment raised the odds of employment cluster the most. A somatic rather than mental disorder and being under 50 years old raised the odds of being in the unemployment and employment clusters.Conclusions: After a rejected disability pension, main income paths include unemployment benefits, re-applied disability pension, and fragmented employment. Labor market and sickness history and age are associated with the probability of these paths.Implications for RehabilitationRejected disability pension applicants should be offered medical or vocational rehabilitation, to enable sustained labor market participation.Partial disability pension, supported by rehabilitation is one solution when a full-time labor market participation is not a realistic option.

Determinants of disability pension applications and awarded disability pensions in Finland, 2009 and 2014.

Aims: Examining the non-medical determinants of applying for and being awarded disability pension is important for assessing the functionality of the disability pension system. We examined how demographic and socioeconomic factors as well as factors related to the disability process associate with the probability of applying for disability pension and the probability of applicants being awarded pension in 2009 and 2014. Methods: 70% random samples of Finnish non-retired residents aged 18-64 in 2009 (n = 2,076,881) and in 2014 (n = 2,097,790) were analysed with logistic regression analysis. The application rates were 0.9% in 2009 and 0.7% in 2014, and the rates of awarded pensions were 80.6% in 2009 and 72.2% in 2014. Results: Being an upper-level non-manual employee and having more employment during the preceding four calendar years decreased the odds of applying for disability pension but increased the odds of being awarded one. Older age increased the odds of both applying for and being awarded pension. Compared to applications based on mental disorders, those applying due to neoplasms and diseases of the circulatory system had increased odds of being awarded pension whereas those applying due to musculoskeletal diseases or injuries had decreased odds. Only minor temporal changes were found in the determinants of applying for or being awarded disability pension. Conclusions: With a greater probability of disability pension applications but also a lower probability of being awarded pension, the occupational disability process involves a comprehensive disadvantage for lower socioeconomic status groups.

Do disability pension awards have a causal impact on recipients’ marital stability? Evidence from the Danish Social Security Programme

What is the effect of a disability pension (DP) on the recipients’ marital stability if we keep the recipients’ health constant? Previous research shows that marital stability may be challenged when one partner acquires a disability. However, the effects of permanent benefits such as DP on recipients’ marital stability have not yet been examined. We contribute to the literature by investigating this question using data from Denmark and estimating the causal effect of DP using instrumental variable regression and the municipal award rate for DPs as the instrument. We find that a DP considerably lowers the risk of divorce, markedly in the short run, but also in the longer run. Our findings suggest overall that a DP preserves disabled persons’ marriage, despite the onset of disability.

Identification of Depression and Screening for Work Disabilities among Long-Term Unemployed People.

The study explores whether clinical screening targeted at work disabilities among long-term unemployed people reveals eligible individuals for a disability pension and the importance of depression in granting the disability pensions. A total of 364 participants of the screening project were considered as eligible to apply for disability pension. Among them, 188 were diagnosed as clinically depressed. They were classified into those with earlier depression diagnosis (n = 85), those whose depression had not been diagnosed earlier (n = 103), and those without diagnosed depression (n = 176). The association of this ‘Depression identification pattern’ with being granted a disability pension was explored by logistic regression analyses. Compared to those with earlier diagnosis, those whose depression had not been diagnosed earlier were granted disability pension more commonly (72% vs. 54% OR 2.2, p = 0.012). Corresponding figures of the undepressed were 73%, OR 2.3, p = 0.002. The adjustments did not affect the results. Clinical examination of the long-term unemployed people in terms of work disability seems to be worthwhile. In particular, the examination reveals new depression diagnoses, which contribute more to the award of disability pension than depression diagnosed earlier by regular health care. Novel ways to detect depression among the unemployed should be implemented in the health and employment services.

Long-Term Outcome of Bodily Distress Syndrome in Primary Care: A Follow-Up Study on Health Care Costs, Work Disability, and Self-Rated Health.

The upcoming International Classification of Diseases, 11th Revision for primary care use suggests inclusion of a new diagnostic construct, bodily (di)stress syndrome (BDS), for individuals with medically unexplained symptoms. We aimed to explore the long-term outcome of BDS in health care costs, work disability, and self-rated health. Consecutive patients consulting their family physician for a new health problem were screened for physical and mental symptoms by questionnaires (n = 1785). A stratified subsample was examined with a standardized diagnostic interview (n = 701). Patients with single-organ BDS (n = 124) and multiorgan BDS (n = 35), and a reference group with a family physician-verified medical condition (n = 880) were included. All included patients completed a questionnaire at 3, 12, and 24 months of follow-up. Register data on health care costs and work disability were obtained after 2 and 10 years of follow-up, respectively. Patients with BDS displayed poorer self-rated health and higher illness worry at index consultation and throughout follow-up than the reference group (p ≤ .001). The annual health care costs were higher in the BDS groups (2270 USD and 4066 USD) than in the reference group (1392 USD) (achieved significance level (ASL) ≤ 0.001). Both BDS groups had higher risk of sick leave during the first 2 years of follow-up (RRsingle-organ BDS = 3.0; 95% confidence interval [CI] = 1.8-5.0; RRmultiorgan BDS = 3.4; 95% CI = 1.5-7.5) and substantially higher risk of newly awarded disability pension than the reference group (HRsingle-organ BDS = 4.9; 95% CI = 2.8-8.4; HRmultiorgan BDS = 8.7; 95% CI = 3.7-20.7). Patients with BDS have poor long-term outcome of health care costs, work disability, and subjective suffering. These findings stress the need for adequate recognition and management of BDS.

Long-term outcome of Bodily Distress Syndrome (BDS) on sick leave, healthcare costs and work disability in primary care patients. A ten-year follow-up study

Background: To assess the ten-year outcome as to sick leave and work disability in primary care patients with BDS compared with patients with a well-defined physical disease and to study the persistence of BDS over time. Method: 1785 consecutive patients consulting their family physician (FP) were screened by questionnaires for symptoms and mental illness. FPs rated patients’ main reason for consultation. A stratified subsample was examined with a standardized diagnostic interview. Patients with BDS single-organ type (n=124) and BDS multi-organ type (n=35) and a reference group having a medical condition according to their FP (n=880) were included. Patients completed questionnaires at three, 12and 24-month follow-up. Register data on health care costs and work were obtained for 2and 10-year follow-up. Results: Patient with BDS displayed poorer self-rated health and higher illness worry at index and throughout follow-up compared to the medical condition group (p≤0.001). Annual total health care costs were higher in the BDS groups compared with the medical condition group (2,270 USD and 4,066 USD vs 1,392 USD, ASL≤0.001). Both BDS groups had higher risk of sick leave during the first two years of follow-up (RRBDS single-organ =3.0, 95%CI: 1.8;5.0, RRBDS multi-organ =3.4, 95%CI:1.5;7.5), and they had substantially higher ten-year risk of new disability pension awards compared with the reference group (HRBDS single-organ=4.9, 95%CI: 2.8;8.4, HRBDS multi-organ=8.7, 95%CI:3.7;20.7). Conclusions This long-term follow-up study of primary care patients with BDS showed that the disorder has severe long-term consequences for the patients including poor physical and mental health, high health care costs and high risk of permanent work disability. This stresses the need for adequate recognition and management of BDS.

Sick leave and work disability in primary care patients with recent-onset multiple medically unexplained symptoms and persistent somatoform disorders: a 10-year follow-up of the FIP study

ObjectiveThe objective was to explore patient characteristics and 10-year outcome of sick leave and work disability for patients with recent-onset multiple medically unexplained symptoms (MUS) and persistent somatoform disorders (SD). MethodConsecutive patients consulting their family physician (FP) completed a preconsultation questionnaire on symptoms and mental illness (n=1785). The main problem was categorized by the FP after the consultation, and a stratified subsample was examined using a standardized diagnostic interview (n=701). Patients were grouped into three cohorts: recent onset of multiple MUS (n=84); Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, persistent SD (n=183); and reference group with well-defined physical disease according to FP (n=833). Register data on sick leave and disability pension were obtained. ResultsAt index consultation, disability pension was received by 8.3% (n=7) in the recent-onset multiple MUS group, 19.1% (n=35) in the SD group and 3.5% (n=29) in the reference group. Both the recent-onset multiple MUS group [hazard ratio (HR)=2.28, 95% confidence interval (CI): 1.14–4.55] and the SD group (HR=3.26, 95% CI:1.93–5.51) had increased risk of new disability pension awards. Furthermore, the SD group had increased risk of sick leave. ConclusionsBoth recent-onset and persistent MUS have significant long-term impact on patient functioning in regard to working life; this calls for early recognition and adequate management of MUS in primary care.

Chronic pain: One year prevalence and associated characteristics (the HUNT pain study)

BackgroundThe reported prevalence of chronic pain ranges from 11% to 64%, and although consistently high, the calculated economic burden estimates also vary widely between studies. There is no standard way of classifying chronic pain. We have repeated measurements of pain in a longitudinal population study to improve validity of the case ascertainment. In this paper, associations between chronic pain and demographic characteristics, self reported health and functioning, work incapacity and health care use were investigated in a sample from the general Norwegian population. MethodsA random sample of 6419 participants from a population study (the HUNT 3 Study) was invited to report pain every three months during a 12 month period. Chronic pain was defined as moderate pain or more (on the SF-8 verbal rating scale) in at least three out of five consecutive measurements. Self reported health and functioning was measured by seven of the eight subscales on the SF-8 health survey (bodily pain was excluded). Health care utilisation during the past 12 months was measured by self report, and included seeing a general practitioner, seeing a medical specialist and seeing other therapists. The survey data was combined with information on income, education, disability pension awards and unemployment by Statistics Norway, which provided data from the National Education database (NUDB) and the Norwegian Labour and Welfare Administration (NAV). ResultsThe total prevalence of chronic pain was 36% (95% CI 34–38) among women and 25% (95% CI 22–26) among men. The prevalence increased with age, was higher among people with high BMI, and in people with low income and low educational level. Smoking was also associated with a higher prevalence of chronic pain. Subjects in the chronic pain group had a self-reported health and functioning in the range of 1–2.5 standard deviations below that of those without chronic pain. Among the chronic pain group 52% (95% CI 49–55), of participants reported having seen a medical specialist during the 12 month study period and 49% (95% CI 46–52) had seen other health professionals. The corresponding proportions for the group without chronic pain were 32% (95% CI 29–34) and 22% (95% CI 20–25), respectively. Work incapacity was strongly associated with chronic pain: compared with those not having chronic pain, the probability of being a receiver of disability pension was four times higher for those with chronic pain and the probability of being unemployed was twice has high for those with chronic pain. The population attributable fraction (PAF) suggested that 49% (95% CI 42–54) of the disability pension awards and 20% (13–27) of the unemployment were attributable to chronic pain. Conclusion and implicationsChronic pain is a major challenge for authorities and health care providers both on a national, regional and local level and it is an open question how the problem can best be dealt with. However, a better integration of the various treatments and an adequate availability of multidisciplinary treatment seem to be important.

Disability Pensions and Active Labor Market Policy

ABSTRACT Danish active labor market policy, under the headline of flexicurity, has received international attention due to its claimed ability to curb unemployment while boosting employment. A strong belief in the positive effects of activation, in policy as well as practice, has had consequences for all client types, including those who are far from labor market participation due to social, mental, physical, or other problems. We analyze the application of active labor market policy measures used to support clients with substantial problems besides unemployment. This study utilizes Danish register data that encompass all people residing in Denmark. Using sequence analyses combined with qualitative data, the authors conclude that the intensive use of active measures does not correspond to lower awarded disability pensions. In fact, the analysis suggests that the intensive use of active measures may in some respects have negative consequences. Hence, future research should further explore the implications of different patterns of timing of active labor market measures for clients as well as for social service providers.

Health Care Use by Patients with Somatoform Disorders: A Register-Based Follow-Up Study

Studies have shown a greater use of medical than mental health services in patients with somatoform disorders. However, not many studies are based on structured interviews and include the entire somatoform spectrum of diagnoses. We conducted a register-based case-control study to investigate medical care use prior to and three years after diagnosis in patients with somatoform disorders. We included 380 patients with somatoform diagnoses (SCID-NP for DSM-IIIR) in a case-control study and compared them with 174 patients with anxiety disorders and 5540 controls from the background population. Data from the Danish National Registers were used to assess health care use in both primary and secondary care. Somatoform patients incurred 2.11 (2.09-2.12) times the primary care visits of controls. They had 3.12 (3.08-3.16) times as many somatic bed-days than controls and 3.94 (3.91-3.97) as many psychiatric bed-days. Primary care use remained stable 3 years after diagnosis (p = 0.14) and the award of disability pension (p = 0.82). However, the number of somatic admissions decreased from 5.64 to 2.76 (p = 0.0004) 3 years after diagnosis. Somatization had an independent effect on health care use when controlling for psychiatric comorbidity. Patients with somatoform disorders make significantly greater use of health care services than do controls and patients with anxiety. Somatoform patients made more use of psychiatric services than expected. The use of somatic health care was independent of psychiatric comorbidity. Primary care use and disability pension award were not influenced by proper diagnosing of somatoform disorders whereas number of somatic admissions were halved.

The impact of ADHD symptoms and global impairment in childhood on working disability in mid-adulthood: a 28-year follow-up study using official disability pension records in a high-risk in-patient population

BackgroundIndividuals with ADHD have been associated with more employment difficulties in early adulthood than healthy community controls. To examine whether this association is attributable specifically to disturbance of activity and attention (ADHD) or to psychopathology in general, we wanted to extend existing research by comparing the rate of mid-adulthood working disabilities for individuals diagnosed with ADHD as children with the rate for clinical controls diagnosed with either conduct disorder, emotional disorder or mixed disorder of conduct and emotions.MethodsFormer Norwegian child-psychiatric in-patients (n = 257) were followed up 17–39 years after hospitalization by record linkage to the Norwegian national registry of disability pension (DP) awards. Based on the hospital records, the patients were re-diagnosed according to ICD-10. Associations between the diagnoses, other baseline factors and subsequent DP were investigated using Kaplan–Meier survival analyses and logrank testing.ResultsAt follow-up, 19% of the participants had received a DP award. In the logrank testing, ADHD was the only disorder associated with a subsequent DP, with 30% being disabled at follow-up (p = 0.01). Low psychosocial functioning (assessed by the Children’s Global Assessment Scale) at admission uniquely predicted future DP (p = 0.04).ConclusionsADHD in childhood was highly associated with later receiving a DP. Our finding of worse prognosis in ADHD compared with other internalizing and externalizing disorders in mid-adulthood supports the assumption of ADHD being specifically linked to working disability. Assessment of psychosocial functioning in addition to diagnostic features could enhance prediction of children who are most at risk of future disability.

Women’s higher likelihood of disability pension: the role of health, family and work. A 5–7 years follow-up of the Hordaland Health Study

BackgroundWomen’s higher risk of disability pension compared with men is found in countries with high female work participation and universal welfare schemes. The aim of the study was to examine the extent to which self-perceived health, family situation and work factors explain women’s higher risk of disability pension. We also explored how these factors influenced the gender difference across educational strata.MethodsThe population-based Hordaland Health Study (HUSK) was conducted in 1997–99 and included inhabitants born in 1953–57 in Hordaland County, Norway. The current study included 5,959 men and 6,306 women in paid work with valid information on education and self-perceived health. Follow-up data on disability pension, for a period of 5–7 years, was obtained by linking the health survey to a national registry of disability pension. Cox regression analyses were employed.ResultsDuring the follow-up period 99 (1.7%) men and 230 (3.6%) women were awarded disability pension, giving a twofold risk of disability pension for women compared with men. Except for a moderate impact of self-perceived health, adjustment for family situation and work factors did not influence the gender difference in risk. Repeating the analyses in strata of education, the gender difference in risk of disability pension among the highly educated was fully explained by self-perceived health and work factors. In the lower strata of education there remained a substantial unexplained gender difference in risk.ConclusionsIn a Norwegian cohort of middle-aged men and women, self-perceived health, family situation and work factors could not explain women’s higher likelihood of disability pension. However, analyses stratified by educational level indicate that mechanisms behind the gender gap in disability pension differ by educational levels. Recognizing the heterogeneity within gender may contribute to a deeper understanding of women’s higher risk of disability pension.

Widespread pain and medically certified disability pension in the Hordaland Health Study

Widespread pain (WSP) is common in the general population and is associated with poor outcomes. The aim of this study was to quantify the risk for medically certified disability pension from WSP. We further studied how other common physical symptoms, common mental disorders and functional limitations influenced this risk. A prospective cohort design was established by linking the large population based Hordaland Health Study (n > 18000 individuals aged 40-46) with an administrative registry on disability pension awards. We modelled hazard ratios for later all-cause and diagnosis specific disability pensioning from WSP, adjusted for potential confounders and examined the impact of other co-occurring health problems and functional limitations. WSP was common (12.4%) and associated with a range of mental health, and non-specific and non-musculoskeletal symptoms. As expected, WSP was a strong predictor for disability pension award. Hazard ratios (HR) adjusted for socio-economic status, health behaviours and comorbid medical diagnoses indicated WSP was strongest in predicting pensioning for musculoskeletal diagnoses (HR = 5.91, 95% CI 4.64-7.54), but also predicted pensioning for mental disorder (HR = 3.13, 95% CI 2.20-4.46) and other diagnoses (HR = 1.81, 95% CI 1.30-2.51). Further adjustments for other common symptoms, including mental illness, reduced, but did not abolish these risks. WSP is a major risk factor for disability pensions, and not only pensions for musculoskeletal disorders. The global impact of WSP, and its close association to other symptoms, suggests prevention of the severe occupational outcomes for this group must have a broad focus and move beyond symptom directed approaches.

Alcohol consumption, problem drinking, abstention and disability pension award. The Nord‐Trøndelag Health Study (HUNT)

To examine associations of abstention, alcohol consumption and problem drinking with subsequent disability pensioning (DP), and whether previous excessive consumption ('sick-quitting') could explain some of the increased risk for DP among abstainers. Prospective population-based study. Data were from two waves of the Nord-Trøndelag Health Study (HUNT) linked with the national insurance database. The two main analyses included 37,729 (alcohol consumption) and 34,666 (problem drinking) participants. Alcohol consumption was measured by self-reported consumption, while problem drinking was assessed by the Cut down, Annoyed, Guilt, Eye-opener (CAGE) questionnaire. Information on subsequent DP, including diagnosis for which the DP was awarded, was gathered from the national insurance database. Covariates included somatic illness and symptoms, mental health, health-related behaviour, socio-economic status and social activity. Those reporting the highest level of alcohol consumption were not at increased risk for DP [hazard ratio (HR) 1.12, 95% confidence interval (CI): 0.92-1.38], whereas problem drinking was a strong predictor (HR 2.79, 95% CI: 2.08-3.75) compared to their corresponding reference groups. Alcohol abstainers were also at increased risk for DP, but among them, the previous consumers (HR 1.95, 95% CI: 1.48-2.57) and previous excessive consumers (HR 1.67, 95% CI: 1.01-2.74) were at higher risk for DP than constant abstainers. Problem drinking is linked to subsequent requirement for a disability pension but mere alcohol consumption is not. This is partly explained by 'sick-quitting'.

Reverse Causality in the Association Between Whiplash and Symptoms of Anxiety and Depression

Longitudinal population-based cohort study. The aim of this study was to examine the possibility of reverse causality, that is, if symptoms of anxiety and depression are associated with incident self-reported whiplash injury. The clinical relevance of self-reported whiplash injury was evaluated by its association with subsequent disability pension award. Whiplash is associated with an increased level of anxiety and depressive symptoms. This increase in psychological distress is generally understood as the consequence of the accident and related whiplash. Longitudinal data from the HUNT study was used. Baseline measures of symptoms of anxiety and depression were used in prediction of incident whiplash injury self-reported at follow-up 11 years later. Incident disability pension award was obtained from a comprehensive national registry during 2-year follow-up after self-reported whiplash injury. Case-level symptom load of anxiety and depression at baseline increased the likelihood of reporting incident whiplash at follow-up (odds ratio [OR] = 1.60, 95% confidence interval = 1.22-2.11). Self-reported whiplash increased the chances of a subsequent disability pension award (OR = 6.54), even in the absence of neck pain (OR = 3.48). This is the first published study with a prewhiplash prospective evaluation of psychological status. Our findings are in conflict with previous research suggesting whiplash to be the cause of associated psychological symptoms rather than their consequence. Self-reported whiplash injury was clinically relevant as it independently increased subsequent disability pension award. The strength of this effect, even in the absence of neck pain, suggests the ascertainment of this diagnostic label, or factors associated with this, are important predictors of disability.

Is Long-Term Prognosis for Pervasive Developmental Disorder Not Otherwise Specified Different from Prognosis for Autistic Disorder? Findings from a 30-Year Follow-Up Study

We followed 74 children with autistic disorder (AD) and 39 children with pervasive developmental disorder not otherwise specified (PDD NOS) for 17–38 years in a record linkage study. Rates of disability pension award, marital status, criminality and mortality were compared between groups. Disability pension award was the only outcome measure that differed significantly between the AD and PDD NOS groups (89% vs. 72%, p < 0.05). The lower rate of disability pension award in the PDD NOS group was predicted by better psychosocial functioning. The lack of substantial differences in prognosis between the groups supports a dimensional description of autism spectrum disorder, in line with proposed DSM-V revision.