Health-related productivity loss: NICE to recognize soon, good to discuss now

Comparison of self-reported and public registered absenteeism among people on long-term sick leave due to musculoskeletal disorders: criterion validity of the iMTA Productivity Cost Questionnaire

OBJECTIVE

To evaluate criterion validity of the iMTA Productivity Cost Questionnaire (iPCQ) by comparing iPCQ-reported occurrence and duration of long-term absenteeism (> 4 weeks) with public registry data collected from the Norwegian Labour and Welfare Administration (NAV) among people on sick leave due to musculoskeletal disorders.

METHOD

Baseline data from a cohort study was used, in which people on sick leave for at least 4 weeks due to musculoskeletal disorders were recruited electronically through the NAV website. To compare the occurrence of long-term absenteeism overall agreement between the two methods was measured by percentages. To compare the duration (number of days with absenteeism) and adjusted duration (number of days with complete absenteeism) of long-term absenteeism we conducted intraclass correlation coefficient (ICC) two-way random average agreement, descriptive statistic and Wilcoxon signed-rank test.

RESULTS

In total, 144 participants with a median age (range) of 49 (24-67) were included. The overall agreement on the occurrence of long-term absenteeism was 100%. The ICC value was 0.97 and 0.86 for duration and adjusted duration of long-term absenteeism, respectively. The median difference_{(iPCQ-registry)} between the two methods was 0 and 17 days for long-term absenteeism duration and adjusted duration, respectively. A significant difference between the two methods was observed (Wilcoxon signed-rank test, p < 0.001) with regards to adjusted duration of long-term absenteeism.

CONCLUSION

The iPCQ showed good agreement with public registry data regarding the occurrence and duration of long-term absenteeism among people with musculoskeletal disorders on long-term sick-leave in Norway. However, the iPCQ does not cover part-time sick-leave and thereby potentially overestimate the total amount of long-term absenteeism.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier no. NCT04196634.

The Assessment of Presenteeism and Activity Impairment in Behcet's Syndrome and Recurrent Aphthous Stomatitis: A multicentre Study

OBJECTIVE

To evaluate key factors for Presenteeism and Activity impairment in multinational patients with Behçet's syndrome (BS) and recurrent aphthous stomatitis (RAS).

METHODS

In this cross-sectional study, 364 BS patients from Jordan, Brazil, the United Kingdom and Turkey and 143 RAS patients from the United Kingdom and Turkey were included. Work Productivity Activity Impairment (WPAI) scale was used for Presenteeism and Activity impairment. Mediation analyses were performed to evaluate both direct and indirect causal effects.

RESULTS

Presenteeism score was higher in active patients with genital ulcers and eye involvement as well as patients with comorbidities and current smokers than the others in BS (p< 0.05). In RAS, Presenteeism score was elevated by oral ulcer activity in the direct path (p= 0.0073) and long disease duration as a mediator in the indirect path (p= 0.0191).Patients with active joint involvement had poor scores in Absenteeism, Presenteeism, Overall impairment and Activity impairment compared with those of inactive patients (p < 0.05). Using mediation analysis, the Activity impairment score was directly mediated by joint activity (p = 0.0001) and indirectly mediated through oral ulcer-related pain in BS (p = 0.0309).

CONCLUSION

In BS, Presenteeism was associated with disease activity, presence of comorbidities and being a current smoker, whereas in RAS, Presenteeism was associated with oral ulcer activity and increased length of the disease. Moreover, Activity impairment was adversely affected by joint activity and oral ulcer related pain in BS. Patients need to be empowered by using appropriate treatment strategies in their working environment and daily life.

Measuring Productivity Costs in Patients With Musculoskeletal Disorders: Measurement Properties of the Institute for Medical Technology Assessment Productivity Cost Questionnaire

BACKGROUND

The Institute for Medical Technology Assessment Productivity Cost Questionnaire (iPCQ) was recently developed to cover all domains of productivity costs; absenteeism, presenteeism and productivity costs related to unpaid work. The original iPCQ has not been tested with respect to neither content or construct validity, nor reliability, and there is no Norwegian version of the questionnaire.

OBJECTIVES

To translate and cross-culturally adapt the iPCQ into Norwegian and to test its measurement properties among patients with musculoskeletal disorders.

METHODS

Translation and cross-cultural adaptation was conducted according to guidelines, and measurement properties were investigated using a cross-sectional design including a test-retest assessment. Patients with musculoskeletal disorders were recruited from secondary care. Data quality, content validity (10 patients evaluated comprehensibility, 2 researchers and 1 clinician evaluated relevance and comprehensiveness), construct validity (factor analysis, internal consistency, divergent hypothesis testing), and test-retest reliability (intraclass correlation coefficient two-way random average agreement, Cohen's unweighted kappa) were assessed.

RESULTS

In total, 115 patients with a mean age (SD) of 46 (9) years were included, and 62 responded to the retest. The questionnaire was feasible, with little missing data and no floor or ceiling effects. Content validity displayed good comprehensibility and relevance and sufficient comprehensiveness. Factor analysis revealed a 3-component solution accounting for 82% of the total variance; items loaded as expected and supported the original structure of the iPCQ. Internal consistency was acceptable for the 3 components of productivity cost, with an inter-item correlation ranging from 0.42 to 0.62. Further, a total of 91% of our hypotheses were verified. The intraclass correlation coefficient values ranged from 0.88 to 0.99 for all items except one; kappa ranged from 0.61 to 0.92, indicating overall good reliability of the questionnaire.

CONCLUSIONS

The Norwegian iPCQ showed good measurement properties among patients with musculoskeletal disorders from secondary care in Norway. We therefore recommend the iPCQ as a useful tool for measuring productivity costs in patients with musculoskeletal disorders.

Measuring the financial and productivity burden of paediatric hospitalisation on the wider family network

AIM

To estimate the non-medical out-of-pocket costs for families with a child in hospital.

METHODS

This study was a survey of 225 parents of paediatric inpatients on nine wards of an Australian public paediatric teaching hospital on two separate days. Our primary outcomes were the costs associated with: (i) time taken off work to care for the child in hospital; (ii) time off work or contributed by family and friends to care for other dependents; and (iii) travel, meals, accommodation and incidental expenses during the child's stay. Demographic data included postcode (to assess distance, socio-economic status and remoteness), child's age, ward and whether this was their child's first admission.

RESULTS

Mean patient age was 6.5 years (standard deviation 5.2). On an average per patient day basis, parents took 1.12 days off work and spent 0.61 (standard deviation 0.53) nights away from home, with 83.8% of nights away at the child's bedside. Parents spent Australian dollars (AUD)89 per day on travel and AUD36 on meals and accommodation. Total costs (including productivity costs) were AUD589 per patient day. Higher costs per patient day were correlated with living in a more remote area (0.48) and a greater travel distance to the hospital (0.41). A higher number of days off work was correlated (0.69) with number of school days missed.

CONCLUSION

These results demonstrate the considerable time and financial resources expended by families caring for a child in hospital and are important inputs in evaluating health-care interventions that affect risk of hospitalisation and length of stay in paediatric care.

Societal costs of multiple sclerosis in Ireland

AIMS

This paper evaluates the impact of multiple sclerosis (MS) in Ireland, and estimates the associated direct, indirect, and intangible costs to society based on a large nationally representative sample.

MATERIALS AND METHODS

A questionnaire was developed to capture the demographics, disease characteristics, healthcare use, informal care, employment, and wellbeing. Referencing international studies, standardized survey instruments were included (e.g. CSRI, MFIS-5, EQ-5D) or adapted (EDSS) for inclusion in an online survey platform. Recruitment was directed at people with MS via the MS Society mailing list and social media platforms, as well as in traditional media. The economic costing was primarily conducted using a 'bottom-up' methodology, and national estimates were achieved using 'prevalence-based' extrapolation.

RESULTS

A total of 594 people completed the survey in full. The sample had geographic, disease, and demographic characteristics indicating good representativeness. At an individual level, average societal cost was estimated at €47,683; the average annual costs for those with mild, moderate, and severe MS were calculated as €34,942, €57,857, and €100,554, respectively. For a total Irish MS population of 9,000, the total societal costs of MS amounted to €429m. Direct costs accounted for just 30% of the total societal costs, indirect costs amounted to 50% of the total, and intangible or QoL costs represented 20%. The societal cost associated with a relapse in the sample is estimated as €2,438.

LIMITATIONS AND CONCLUSIONS

The findings highlight that up to 70% of the total costs associated with MS are not routinely counted. These "hidden" costs are higher in Ireland than the rest of Europe, due in part to significantly lower levels of workforce participation, a higher likelihood of permanent workforce withdrawal, and higher levels of informal care needs. The relationship between disease progression and costs emphasize the societal importance of managing and slowing the progression of the illness.

Valuing productivity costs in a changing macroeconomic environment: the estimation of colorectal cancer productivity costs using the friction cost approach

BACKGROUND

The friction cost approach (FCA) has been proposed as an alternative to the human capital approach for productivity cost valuation. However, FCA estimates are context dependent and influenced by extant macroeconomic conditions. We applied the FCA to estimate colorectal cancer labor productivity costs and assessed the impact of a changing macroeconomic environment on these estimates.

METHODS

Data from colorectal cancer survivors (n = 159) derived from a postal survey undertaken in Ireland March 2010 to January 2011 were combined with national wage data, population-level survival data, and occupation-specific friction periods to calculate temporary and permanent disability, and premature mortality costs using the FCA. The effects of changing labor market conditions between 2006 and 2013 on the friction period were modeled in scenario analyses. Costs were valued in 2008 euros.

RESULTS

In the base-case, the total FCA per-person productivity cost for incident colorectal cancer patients of working age at diagnosis was €8543. In scenario 1 (a 2.2 % increase in unemployment), the fall in the friction period caused total productivity costs to decrease by up to 18 % compared to base-case estimates. In scenario 2 (a 9.2 % increase in unemployment), the largest decrease in productivity cost was up to 65 %. Adjusting for the vacancy rate reduced the effect of unemployment on the cost results.

CONCLUSIONS

The friction period used in calculating labor productivity costs greatly affects the derived estimates; this friction period requires reassessment following changes in labor market conditions. The influence of changes in macroeconomic conditions on FCA-derived cost estimates may be substantial.