Social Transfer Payments Research Articles

Comorbid symptoms of depression and musculoskeletal pain and risk of long term sickness absence

BackgroundSymptoms of depression and musculoskeletal pain have both been found to be associated with increased risk of long term sickness absence (LTSA). The comorbidity between depression and pain i.e. simultaneous presence of both symptoms, is well established in the literature. The aim for the current investigation was to investigate whether the presence of comorbid pain influences the associations between depressive symptoms and LTSA or if the presence of comorbid depressive symptoms influences associations between musculoskeletal pain and LTSA.MethodsA sample of 6572 Danish female health care workers responding to a questionnaire about health and working conditions were followed up in a national register of social transfer payments (DREAM) for 550 days. We estimated the risk for LTSA of four weeks or more, associated with depressive symptoms and number of musculoskeletal pain locations using a Cox proportional hazards model allowing multiple observations per individual. We conducted a test for multiplicative interaction between musculoskeletal pain locations and depressive symptoms, and presented stratified regression models to facilitate the interpretation of the results.ResultsThe severity of depressive symptoms was correlated with the number of pain locations reported (Spearman’s rho = .24, p < 0.001). We found a significant multiplicative interaction between depressive symptoms and musculoskeletal pain in predicting the risk of LTSA. Depressive symptoms and number of musculoskeletal pain locations were associated with increased risk of LTSA for individuals who did not have comorbid symptoms. However, we found no significant associations between the two predictors and LTSA among participants who reported comorbid symptoms.ConclusionsThe risk of LTSA associated with depressive symptoms and musculoskeletal pain appears to be moderated by the presence of comorbid symptoms. The modified risk for LTSA among workers with comorbid symptoms requires further investigation.

Long-term sickness absence from work due to physical inactivity: A registry-based study.

The aim of this study was to explore the relationship between leisure-time physical inactivity and long-term sickness absence in a representative sample of individuals aged 16-54 years, within the labour market and in good health. It was hypothesised that physically inactive individuals have a higher risk of long-term sickness absence and longer duration of sickness absence. The study population was identified from the National Health and Morbidity Survey, 2010. Weekly data on long-term sickness absence were obtained from the National Register on Social Transfer Payments (the DREAM registry). The association of incidence and duration of long-term sickness absence with physical inactivity was explored using logistic and Poisson regression. Data were fitted to models with levels of physical activity, demographic, social and lifestyle characteristics as independent variables. A combined hurdle model was used to estimate the difference in mean number of absence weeks. Logistic regression showed that physically inactive individuals had a 27% higher incidence of long-term sickness absence compared with physically active individuals. The Poisson regression showed that long-term sickness absence was only slightly shorter (1 week less) for moderately active individuals compared with inactive individuals. The hurdle model estimated longer absence periods for inactive individuals (additional 2.5 weeks) in comparison with moderately and highly active individuals. The study showed that physically inactive individuals have a higher incidence of long-term absence and that physically inactive individuals have longer periods with sickness absence than moderately and highly active individuals. When adjustments for social and health behaviour were included, the estimated associations became statistically insignificant.

Evaluation of the investment process in the region and the influence of social well-being of the population on it

The authors of the present paper consider the main indicators for assessing the investment process in the region. The influence of effective human capital on this process is substantiated. The paper shows that the formation of such human capital in modern Russia depends on the social well-being of the population of the region, which in its turn is largely determined by the existing level of social justice. The Lorentz curves, the Gini coefficient and the Robin Hood index are proposed to be used for objective assessment of this level. In order to create more favorable conditions for the formation of effective human capital in the region, it is proposed to use progressive taxation and state social transfer payments, create and develop institutions of civil society, increase the investment activity of private business, the state and public-private partnership.

Cumulative occupational mechanical exposures during working life and risk of sickness absence and disability pension: prospective cohort study.

Objectives The aim of this study was to determine the prospective association of cumulative mechanical exposure during working life with health-related labor market outcomes. Methods This prospective cohort study combines data from 5076 older workers (age 49-63 years) from the Copenhagen Aging and Midlife Biobank with a job exposure matrix and a national register containing information on social transfer payment. By coding individual job histories from the Danish version of ISCO-codes (International Standard Classification of Occupations), we calculated cumulative occupational mechanical exposures from a JEM for ton-years (lifting 1000 kg each day in one year), lifting-years (lifting loads weighing ≥20 kg >10 times each day in one year), kneeling-years (kneeling for one hour each day in one year) and vibration-years (whole-body vibration for one hour each day in one year). Cox-regression analyses estimated the relative risk of register-based long-term sickness absence (LTSA) and disability pension with cumulative occupational mechanical exposures throughout working life. Analyses were censored for competing events and adjusted for multiple confounders. Results During the follow-up period, 970 persons (19.3%) had ≥1 episode of LTSA and 85 persons (1.7%) were granted a disability pension. Number of ton-, lifting- and kneeling-years showed an exposure-response association with increased risk of LTSA (P<0.0001). In addition, both long term [≥20 years; hazard ratio (HR) 1.76 95% CI 1.39-2.22] and short term (<10 years; HR 1.20 95% CI 1.02-1.41) exposure to kneeling work increased the risk of LTSA. Lifting-years, but not the other mechanical exposures, were associated with risk of disability pension (HR 1.75 95% CI 1.01-3.04). Conclusions Cumulative occupational mechanical exposures during working life - such as lifting and kneeling work - increased the risk of LTSA. Importantly, being exposed to lifting increased the risk of disability pension.

The Socio-economic Impact of Bariatric Surgery.

A recurring argument for bariatric surgery is cost savings due to sustained weight loss and reductions in comorbidities. However, studies prompting this argument tend to focus only on health care costs, and in some of them, cost changes after surgery have been modelled. The aim of this study was to generate real-world evidence on the socio-economic impact of bariatric surgery, by evaluating the effect on both direct and indirect costs. Using real-world data from national registries, predictions of health care costs, social transfer payments and income were performed for a surgically treated individual and compared to those for a similar but non-surgically treated individual 3years before and after surgery. Secondly, the relative risks for health care costs, social transfer payments and income of a surgical group compared with a non-surgical group were estimated. The non-surgical group was defined as being eligible for bariatric surgery but not undergoing it. Bariatric surgery was associated with higher, but insignificantly so, health care costs, primarily due to an increase in somatic inpatient services. A significant decrease in costs of drugs was seen, especially for anti-diabetic medication. Bariatric surgery had a slight positive effect on social transfer payments and no significant effect on income. There are no cost savings of bariatric surgery in the short run. Further real-world evidence over a longer period of time is needed to examine whether the higher health care costs will eventually be counterbalanced, making bariatric surgery a profitable intervention in a socio-economic perspective.

Welfare consequences for people with epilepsy and their partners: A matched nationwide study in Denmark

PurposeWe aimed to evaluate the excess direct and indirect costs associated with epilepsy. MethodsFrom the Danish National Patient Registry (1998–2013), we identified people within all ages with an epilepsy diagnosis and matched them to control individuals. Additionally, partners of people with epilepsy were identified, who were compared with control partners. Direct costs included frequencies and costs of hospitalizations and weighted outpatient use according to diagnosis-related group, and specific outpatient costs based on data from the Danish Ministry of Health. The use and costs of drugs were based on data from the Danish Medicines Agency. The frequencies of visits and hospitalizations, and costs from general practice were derived from data from the National Health Security. Indirect costs included labor supply-based income data, and all social transfer payments obtained from Coherent Social Statistics. ResultsA greater percentage of people with epilepsy and their partners compared with respective control subjects received social services (sick pay or disability pension). Those with epilepsy had a lower employment rate than did controls for equivalent periods up to eight years before the diagnosis was made. Mortality was significantly higher in people with epilepsy than in control individuals (hazard ratio 2.38 (95% CI: 2.34, 2.41).The additional direct and indirect annual costs of epilepsy compared with controls were €11,223 for persons with epilepsy and €2,494 for their partners. ConclusionEpilepsy has major socioeconomic consequences for individual patients, their partners and society.

The association of health and voluntary early retirement pension and the modifying effect of quality of supervision: Results from a Danish register-based follow-up study.

Objectives: The aims of this article are to (1) determine whether and to what extent general perceived health and quality of supervision predict voluntary early retirement pension (VERP) and (2) assess whether quality of supervision modifies the association between general perceived health and VERP. Methods: Employees aged 49–64 years who participated in the Danish Work Environment Cohort Study in 2000 were selected. Their questionnaire data about health and work were linked to register data on social transfer payments, among others VERP, from 2001 to 2012 in the Danish Register for Evaluation of Marginalization (N=1167). Cox proportional hazards analyses were performed to identify the prospective association of general perceived health and quality of supervision on VERP. Relative excess risks due to interaction (RERIs) were calculated to assess whether quality of supervision modified the association between health and VERP. Results: Employees with poor health at baseline had an increased risk of VERP during follow-up (hazard ratio [HR]=1.23; 95% confidence interval [CI] 1.02–1.49). Quality of supervision at baseline was not associated to VERP during follow-up (HR=1.04; 95% CI 0.90–1.21). There was no statistically significant interaction of poor health and poor quality of supervision with regard to risk of VERP (RERI=−0.33; 95% CI −1.79 to 1.14). Conclusions: This study did not support the notion that quality of supervision buffers the association between poor health and VERP. Future research is needed to determine whether other aspects of supervision, for example supervisors’ opportunities to effectuate workplace adjustments, may modify the association of poor health and VERP.

The impact of a physician-staffed helicopter on outcome in patients admitted to a stroke unit: a prospective observational study

BackgroundTransportation by helicopter may reduce time to hospital admission and improve outcome. We aimed to investigate the effect of transport mode on mortality, disability, and labour market affiliation in patients admitted to the stroke unit.MethodsProspective, observational study with 5.5 years of follow-up. We included patients admitted to the stroke unit the first three years after implementation of a helicopter emergency medical services (HEMS) from a geographical area covered by both the HEMS and the ground emergency medical services (GEMS). HEMS patients were compared with GEMS patients. Primary outcome was long-term mortality after admission to the stroke unit.ResultsOf the 1679 patients admitted to the stroke unit, 1068 were eligible for inclusion. Mortality rates were 9.04 per 100 person-years at risk (PYR) in GEMS patients and 9.71 per 100 PYR in HEMS patients (IRR = 1.09, 95% CI 0.79–1.49; p = 0.60). The 30-day mortality was 7.4% with GEMS and 7.9% with HEMS (OR = 1.02, CI 0.53–1.96; p = 0.96). Incidence rate of involuntary early retirement was 6.97 per 100 PYR and 7.58 per 100 PYR in GEMS and HEMS patients, respectively (IRR = 1.19, CI 0.27–5.26; p = 0.81). Work ability after 2 years and time on social transfer payments did not differ between groups. We found no significant difference in mean modified Rankin Scale score after 3 months (2.21 GEMS vs. 2.09 HEMS; adjusted mean difference = −0.20, CI −0.74–0.33; p = 0.46).DiscussionThe possible benefit of HEMS for neurological outcome is probably difficult to detect by considering mortality, but for the secondary analyses we had less statistical power as illustrated by the wide confidence intervals.ConclusionHelicopter transport of stroke patients was not associated with reduced mortality or disability, nor improved labour market affiliation compared to patients transported by a ground unit.Trial registrationThe study was registered at ClinicalTrials.gov (NCT02576379).

The Socioeconomic Burden of Obesity

Objective: To evaluate the socioeconomic impact of obesity by estimating the direct and indirect costs associated with obesity in Denmark, based on individual level data. Methods: Costs were assessed for different BMI groups, and the relative risks for change in direct and indirect costs per BMI point above 30 were estimated. A fourth analysis estimated the odds ratio for comorbidities per BMI point above 30. Individual data on income, social transfer payments, healthcare costs and diagnoses were retrieved from national registries. Results: One BMI point above 30 was associated with a 2% decrease in income, a 3% increase in social transfer payments, and a 4% increase in healthcare costs. In absolute numbers, income contributed to most of the total economic burden. One BMI point above 30 was also associated with increased comorbidity, which explains the increase in both direct and indirect costs. Conclusion: Obesity is associated with increased comorbidity, giving rise to an increase in both direct and indirect costs. Especially income is affected, which emphasizes the importance of including both measures when evaluating the total socioeconomic burden of obesity. Our findings draw attention to the potential for saving public resources and preventing loss of income by preventing obesity.

Welfare costs in patients with rheumatoid arthritis and their partners compared with matched controls: a register-based study.

Rheumatoid arthritis (RA) is a chronic autoimmune disease with significant morbidity, mortality, and costs for the individual patient and for society. The purpose of this study was to examine welfare costs in patients with RA including their partners before and after initial diagnosis. Data were collected from population-based registers in the period from 1998 to 2009. A total of 25,547 Danish patients with a diagnosis of RA and 15,660 of their partners were identified and compared with 101,755 randomly selected age- and gender-matched controls and 62,681 control partners. The direct and indirect costs were calculated for patients and their partners and compared to matched controls. These included inpatient and outpatient treatment, medication, income from employment and social transfer payments. Patients with RA had statistically significantly more inpatient and outpatient costs than control subjects, i.e., treatment (€346 vs. €211), hospitalization (€1261 vs. €778), and medication use (€654 vs. €393). The costs associated with the patients were present 11years before diagnosis of RA (€1592) compared with control subjects (€1172). Furthermore, income from employment was lower for patients (€14,023) than for control subjects (€17,196). Being a partner to a patient with RA was associated with high total welfare costs. This register-based study shows that RA has significant welfare costs for patients, their partners, and society. The differences in total health costs exist up to 11years before the diagnosis of RA is established.

Influence of physical and psychosocial work environment throughout life and physical and cognitive capacity in midlife on labor market attachment among older workers: study protocol for a prospective cohort study.

BackgroundAs average life span increases, elderly will account for an increasing proportion of the total population in most parts of the world. Thus, initiatives to retain older workers at the labor market are becoming increasingly important. This study will investigate the influence of physical and psychosocial work environment throughout working life and physical and cognitive capacity in midlife on labor market attachment among older workers.Methods/DesignApproximately 5000 participants (aged 50–60 years) from the Copenhagen Aging and Midlife Biobank (CAMB) will be followed prospectively in a national register (DREAM), containing information on a week-to-week basis about social transfer payments for about 5 million Danish residents. Using Cox regression, we will model the risk of long-term sickness absence, disability pension, early retirement and unemployment within a 4 to 6 year period from the baseline measurement as a function of the following predictors: 1) physical work demands throughout working life, 2) psychosocial working conditions throughout working life, 3) physical capacity in midlife, 4) cognitive capacity in midlife. Estimates will be adjusted for age, sex, lifestyle, socioeconomic position, chronic disease and long-term sickness absence prior to baseline.DiscussionThe project will generate new knowledge on risk factors for loss of labor market attachment. The results will potentially contribute in identifying factors that could be targeted in future interventions for maintaining a longer and healthier working life among older workers.

Long-term follow-up of trauma patients before and after implementation of a physician-staffed helicopter: A prospective observational study.

The first Danish Helicopter Emergency Medical Service (HEMS) was introduced May 1st 2010. The implementation was associated with lower 30-day mortality in severely injured patients. The aim of this study was to assess the long-term effects of HEMS on labour market affiliation and mortality of trauma patients. Prospective, observational study with a maximum follow-up time of 4.5 years. Trauma patients from a 5-month period prior to the implementation of HEMS (pre-HEMS) were compared with patients from the first 12 months after implementation (post-HEMS). All analyses were adjusted for sex, age and Injury Severity Score. Of the total 1994 patients, 1790 were eligible for mortality analyses and 1172 (n=297 pre-HEMS and n=875 post-HEMS) for labour market analyses. Incidence rates of involuntary early retirement or death were 2.40 per 100 person-years pre-HEMS and 2.00 post-HEMS; corresponding to a hazard ratio (HR) of 0.72 (95% confidence interval (CI) 0.44-1.17; p=0.18). The HR of involuntary early retirement was 0.79 (95% CI 0.44-1.43; p=0.43). The prevalence of reduced work ability after three years were 21.4% vs. 17.7%, odds ratio (OR)=0.78 (CI 0.53-1.14; p=0.20). The proportions of patients on social transfer payments at least half the time during the three-year period were 30.5% vs. 23.4%, OR=0.68 (CI 0.49-0.96; p=0.03). HR for mortality was 0.92 (CI 0.62-1.35; p=0.66). The implementation of HEMS was associated with a significant reduction in time on social transfer payments. No significant differences were found in involuntary early retirement rate, long-term mortality, or work ability.

Health, Social and Economic Consequences of Polyneuropathy: A Controlled National Study Evaluating Societal Effects on Patients and Their Partners

Objectives: To estimate the direct and indirect factual costs of polyneuropathy in a national sample of patients and their spouses based on a national register-based cohort study with matched controls. Methods: Using records from the Danish National Patient Registry (1997-2009) all patients with a diagnosis of polyneuropathy and their partners were identified and compared with randomly chosen controls matched for age, gender, geographic area and civil status. Direct costs included frequencies of primary and secondary sector contacts and procedures, and medication. Indirect costs included the effect on labor supply. Social-transfer payments were included to illustrate the effect on national accounts. All cost data were extracted from national databases. Results: 13,758 unspecified polyneuropathy patients were registered. They were compared with 54,900 matched controls identified from the National Danish Patient Registry. In addition, partners of patients in the case group were matched with partners in the corresponding control group. Almost half of the patients in the patient group had a partner. Patients had significantly higher rates of health-related contacts, medication use and greater socioeconomic costs than controls. They had very marginally lower employment rates, and those who were employed generally had lower incomes. The sum of direct net healthcare costs after the injury (general practitioner services, hospital services and medication) and indirect costs (loss of labor market income) was €12,647 for patients and €2,984 for their partners over and above that of controls. Social-transfer payments were all significantly larger in patients than in control subjects. Furthermore, the patients already exhibited a negative social- and health-related status up to eleven years before the first diagnosis, particularly for those with the highest costs. The health effects were present in all age groups and in both genders. Conclusions: Patients with a diagnosis of polyneuropathy experience increased mortality, morbidity and socioeconomic consequences. i 2014 S. Karger AG, Basel

Influence of lifestyle factors on long-term sickness absence among female healthcare workers: a prospective cohort study.

BackgroundWhile previous research has indicated that unhealthy lifestyle is associated with sickness absence, this association may be confounded by occupational class. To avoid this potential confounding, we examined the association between lifestyle factors (smoking, leisure-time physical activity and body mass index) and the occurrence of long-term sickness absence (LTSA; more than three consecutive weeks of registered sickness absence) within a cohort of female health care workers.MethodsA total of 7401 employees filled out a questionnaire about their health behaviour and work environment. Subsequently, they were followed for 12 months in a national register on social transfer payments (DREAM register). Cox’s regression analyses, applied to grouped survival data, were used to estimate the prospective association between these lifestyle factors and LTSA.ResultsWe found significant associations between all three lifestyle factors and risk of LTSA. The strongest lifestyle factor was current smoking, which increased the risk of LTSA by 35% (95% CI: 1.17-1.54) compared to non- smokers. For body mass index, the risk of LTSA increased with the distance away from 18.5 kg/m2 in either direction (below 18.5 kg/m2: HR: 1.32 per kg/m2; 95% CI. 1.06-1.66; above 18.5 kg/m2: HR: 1.04 per kg/m2; 95% CI: 1.03-1.05). In other words, the more underweight or overweight the women were, the higher the risk of LTSA. A dose–response relationship was found between LTSA and leisure-time physical activity (trend test p-value = 0.01), so that increasing physical activity results in decreasing risk of LTSA.ConclusionIn female healthcare workers, an unhealthy lifestyle (too high/ too low body mass index, smoking, and low physical activity) is associated with higher risk of LTSA.

Prediction of future labour market outcome in a cohort of long-term sick-listed Danes.

BackgroundTargeted interventions for the long-term sick-listed may prevent permanent exclusion from the labour force. We aimed to develop a prediction method for identifying high risk groups for continued or recurrent long-term sickness absence, unemployment, or disability among persons on long-term sick leave.MethodsWe obtained individual characteristics and follow-up data from the Danish Register of Sickness Absence Compensation Benefits and Social Transfer Payments (RSS) during 2004 to 2010 for 189,279 Danes who experienced a period of long-term sickness absence (4+ weeks). In a learning data set, statistical prediction methods were built using logistic regression and a discrete event simulation approach for a one year prediction horizon. Personalized risk profiles were obtained for five outcomes: employment, unemployment, recurrent sickness absence, continuous long-term sickness absence, and early retirement from the labour market. Predictor variables included gender, age, socio-economic position, job type, chronic disease status, history of sickness absence, and prior history of unemployment. Separate models were built for times of economic growth (2005–2007) and times of recession (2008–2010). The accuracy of the prediction models was assessed with analyses of Receiver Operating Characteristic (ROC) curves and the Brier score in an independent validation data set.ResultsIn comparison with a null model which ignored the predictor variables, logistic regression achieved only moderate prediction accuracy for the five outcome states. Results obtained with discrete event simulation were comparable with logistic regression.ConclusionsOnly moderate prediction accuracy could be achieved using the selected information from the Danish register RSS. Other variables need to be included in order to establish a prediction method which provides more accurate risk profiles for long-term sick-listed persons.

Multiple somatic symptoms in employees participating in a randomized controlled trial associated with sickness absence because of nonspecific low back pain

Background contextThe prevalence of multiple somatic symptoms is high in primary and hospital outpatient populations. Multiple somatic symptoms may be present in patients sick-listed because of low back pain (LBP) and may be associated with increased risk of not returning to work (RTW). PurposeTo explore whether multiple somatic symptoms in a subset of patients with nonspecific LBP was associated with RTW, sickness absence (SA), or other social benefits. Study designThe study was a cohort study based on a randomized clinical trial with a prospective 2-year follow-up period. Patients were referred from general practices to the Spine Center, Regional Hospital Silkeborg, Denmark. Patient samplePatients were 285 sick-listed employees (4–12 weeks), with nonspecific LBP as their prime reason for SA. Exclusion criteria were unemployment, radiculopathy, LBP surgery within the past year, previous lumbar fusion, suspected cauda equina syndrome, progressive paresis or other serious back disease, pregnancy, known substance abuse, or primary psychiatric diagnosis. Outcome measuresSelf-reported health was assessed by the LBP rating scale and questions about pain and health in general. Disabilities were measured by the Roland Morris Questionnaire, the Short Form-36, and the Fear-Avoidance Beliefs Questionnaire. Work-related questions comprised expectations about RTW and risk of losing job because of SA. The Common Mental Disorder Questionnaire (subscale SCL-SOM) was used to assess multiple somatic symptoms (12 items). We categorized multiple somatic symptoms into four groups based on the SCL-SOM sum score: <6, 6 to 12, 13 to 18 and >18. Status of SA (>2 weeks) and RTW were gathered from a national database (DREAM). MethodsThe patients (N=285) were randomized into either multidisciplinary or brief intervention at the Spine Center (2004–2008). Both interventions comprised clinical examination and advice by a physiotherapist and a rheumatologist. Data were collected from questionnaires at baseline (inclusion) and 1 year after inclusion. Data on SA benefits were gathered from the DREAM database that contains data on all social transfer payments (such as sick leave benefits and other disability benefits) registered on a weekly basis. ResultsAll health factors, female gender, and poor work ability were significantly associated with a higher level of multiple somatic symptoms. The percentage of persons with SA increased significantly with the symptom score after 1 year, and the duration of SA remained significantly longer after 2 years of follow-up between the multiple somatic symptoms groups. The percentages with RTW after 1 and 2 years were negatively associated with a higher level of multiple somatic symptoms at baseline. We found no difference between the intervention groups. ConclusionsA higher level of multiple somatic symptoms was significantly associated with poor health and work ability at baseline and with longer duration of SA and unsuccessful RTW through a 2-year follow-up period.

Direct and indirect economic and health consequences of COPD in Denmark: a national register-based study: 1998–2010

ObjectiveChronic obstructive pulmonary disease (COPD) is among the leading causes of morbidity and mortality worldwide, but longitudinal studies of the economic consequences of COPD are scarce. This Danish study evaluated...

Economic and Health Consequences of COPD Patients and Their Spouses in Denmark—1998–2010

Objective: Chronic Obstructive Pulmonary Disease (COPD) is among the leading causes of morbidity and mortality worldwide, but longitudinal studies of the economic consequences of COPD are scarce. This study evaluated the economic consequences of COPD patients in Denmark and their spouses at a national level before and after initial diagnosis. Methods: Using records from the Danish National Patient Registry (1998–2010), 171,557 patients with COPD and 86,260 spouses were identified; patients were compared with 664,821, and the spouses with 346,524, all controls were randomly selected and matched for age, gender and residence. Direct and indirect costs, including frequency of primary and secondary sector contacts and procedures, medication, unemployment benefits and social transfer payments were extracted from national databases for patients, spouses and controls. Results: COPD patients are earning approximately half of that of controls before diagnosis. After diagnosis this effect diminishes due to people getting older and retiring from work (65 years). Total health expenses are more than twice as high in the COPD group regardless of age and gender compared to controls. Spouses of COPD patients had significantly higher rates of health-related contacts, medication use and higher socioeconomic costs compared to controls. The employment and income rates of employed spouses of COPD patients were significantly lower compared to controls. Conclusion: This study provides unique data on the economic consequences of COPD patients in Denmark and their spouses as well as displaying the serious health consequences for the individual spouse and society. Second, data shows substantial impact of COPD on income level and health expenses regardless of age and gender. It could be speculated that early identification and intervention might contribute to more health and economic equality between patients and controls

Should physical activity recommendation depend on state of low back pain?

Leisure time physical activity is recommended for preventing long-term sickness absence (LTSA). Although low back pain (LBP) is a risk factor for sickness absence and physical activity is recommended for people with LBP, it is unknown if leisure time physical activity prevents LTSA among persons with different levels of LBP. Prospective cohort study among 8655 Danish female healthcare workers responding to a questionnaire in 2004-2005 on leisure time physical activity and LBP, and subsequently followed for 1 year on periods with LTSA ∼2 consecutive weeks or more of sickness absence in a national register of social transfer payments (DREAM). Multi-adjusted Cox regression analysis was used to model risk estimates for LTSA associated with low, moderate, high and very high leisure time physical activity at baseline among healthcare workers with no LBP (0 days past 12 months, n = 2761), non-chronic LBP (1-30 days the past 12 months, n = 3942) and persistent LBP (>30 days the past 12 months, n = 1952). A strongly reduced risk for LTSA from high leisure time physical activity was found among healthcare workers with no LBP [hazard ratio (HR): 95% confidence interval (CI) 0.47:0.23-0.97 for low vs. very high activity] and non-chronic LBP (HR: 95%CI 0.43:0.23-0.84 of low vs. very high activity), but not among healthcare workers with persistent LBP (HR: 95%CI 1.15:0.55-2.44 of low vs. very high activity). Leisure time physical activity is a strong predictive factor on LTSA among female healthcare workers with no and non-chronic LBP, but not among those with more persistent LBP.

Donor ideology and types of foreign aid

We examine how donor government ideology influences the composition of foreign aid flows. We use data for 23 OECD countries over the period 1960–2009 and distinguish between multilateral and bilateral aid, grants and loans, recipient characteristics such as income and political institutions, tied and untied aid, and aid by sector. The results show that leftist governments increased the growth of bilateral grant aid, and more specifically grant aid to least developed and lower middle-income countries. Our findings confirm partisan politics hypotheses because grants are closely analogous to domestic social welfare transfer payments, and poverty and inequality are of greatest concern for less developed recipient countries.