Determining the reliability and convergent validity of a return-to-work status questionnaire

Intermethod agreement of self-reports compared to register data collection for return to work and sickness absence: a systematic review and meta-analysis

OBJECTIVES

To determine the intermethod agreement of self-reported vs. register data of 'sickness absence' (SA) and 'return to work' (RTW) outcome measurements.

STUDY DESIGN AND SETTING

We conducted a systematic review and a meta-analysis of studies reporting mean differences (MDs) and sensitivity and specificity for self-report vs. register data and an inductive analysis of the self-report question formulations. An information specialist searched Medline, Embase, PsycINFO for studies published from inception to November 2022. Screening and data extraction was done by two authors independently.

RESULTS

Twenty-three studies were included of which eighteen with an overall high risk of bias. Self-reports had a pooled MD of 1.84 SA days (95% confidence interval [CI] 0.26-3.41, I2 98%, 18 studies, 38,716 participants) compared to registries which varied among studies from 204 more to 17 days less. The median average sick leave in studies in the self-report group was 8 days (interquartile range 4-23 days). Being absent from work measured with self-report had a sensitivity of 0.83 (0.76-0.88 95% CI) and a specificity of 0.92 (0.88-0.94 95% CI) compared to registry data. The high heterogeneity amongst the studies could not be explained by recall time, gender, register type, prospective or retrospective self-reports, health problem, SA at baseline or risk of bias. Studies lacked standard outcome reporting, had unclearly formulated questions in self-reports and there was little information on the registers' quality.

CONCLUSION

Current self-reports may differ from register-based absence data but in an inconsistent way. Due to inconsistency and high risk of bias the evidence is judged to be of very low certainty. Further research is needed to develop clear standard questions which can be used for SA and RTW self-reports. Quality of registers needs to be better evaluated. Percentage positive and negative agreement, MDs and 2 × 2 tables should be reported for studies investigating agreement between SA and RTW outcome measures.

Factors associated with long term work incapacity following a non-catastrophic road traffic injury: analysis of a two-year prospective cohort study

Background

Road traffic injuries (RTIs), primarily musculoskeletal in nature, are the leading cause of unintentional injury worldwide, incurring significant individual and societal burden. Investigation of a large representative cohort is needed to validate early identifiable predictors of long-term work incapacity post-RTI. Therefore, up until two years post-RTI we aimed to: evaluate absolute occurrence of return-to-work (RTW) and occurrence by injury compensation claimant status; evaluate early factors (e.g., biopsychosocial and injury-related) that influence RTW longitudinally; and identify factors potentially modifiable with intervention (e.g., psychological distress and pain).

Methods

Prospective cohort study of 2019 adult participants, recruited within 28 days of a non-catastrophic RTI, predominantly of mild-to-moderate severity, in New South Wales, Australia. Biopsychosocial, injury, and compensation data were collected via telephone interview within one-month of injury (baseline). Work status was self-reported at baseline, 6-, 12-, and 24-months. Analyses were restricted to participants who reported paid work pre-injury (N = 1533). Type-3 global p-values were used to evaluate explanatory factors for returning to ‘any’ or ‘full duties’ paid work across factor subcategories. Modified Poisson regression modelling was used to evaluate factors associated with RTW with adjustment for potential covariates.

Results

Only ~ 30% of people with RTI returned to full work duties within one-month post-injury, but the majority (76.7%) resumed full duties by 6-months. A significant portion of participants were working with modified duties (~ 10%) or not working at all (~ 10%) at 6-, 12-, and 24-months. Female sex, low education, low income, physically demanding occupations, pre-injury comorbidities, and high injury severity were negatively associated with RTW. Claiming injury compensation in the fault-based scheme operating at the time, and early identified post-injury pain and psychological distress, were key factors negatively associated with RTW up until two years post-injury.

Conclusions

Long-term work incapacity was observed in 20% of people following RTI. Our findings have implications that suggest review of the design of injury compensation schemes and processes, early identification of those at risk of delayed RTW using validated pain and psychological health assessment tools, and improved interventions to address risks, may facilitate sustainable RTW.

Trial registration

This study was registered prospectively with the Australian New Zealand Clinical Trials Registry (ACTRN12613000889752).

Systematic Review of Biopsychosocial Prognostic Factors for Return to Work After Acute Orthopedic Trauma: A 2020 Update

OBJECTIVE

To provide updated evidence on prognostic factors for return to work (RTW) in the early and late phases after acute orthopedic trauma from a biopsychosocial perspective.

METHODS

A systematic review of articles indexed in the MEDLINE, CINAHL, and Embase databases between 2010 and 2020 was performed. The inclusion criteria were cohort studies of employed populations sustaining acute orthopedic trauma with follow-up data on RTW. Biopsychosocial prognostic factors for RTW must be reported in the multiple regression models and divided into early (≤ 6 months) and late phases (> 6 months) postinjury. Two reviewers performed study selection, assessed the risk of bias and quality using the Quality in Prognosis Studies (QUIPS) tool and the Newcastle-Ottawa Scale (NOS), and extracted data independently.

RESULTS

Thirty articles were included with a follow-up period of 1-58 months. Based on the QUIPS tool, 7 studies (23%) were considered to have a low risk of bias, and 21 studies (70%) were considered to have a moderate risk of bias. Based on the NOS, the quality was high in 87% of the included studies. The RTW rates ranged from 22% to 74% in the early phase and from 44% to 94% in the late phase. In the early phase, strong evidence was found for injury severity. In the late phase, strong evidence was found for age, injury severity, level of pain, self-efficacy, educational level, blue-collar work, and compensation status; moderate evidence was found for recovery expectations and physical workload. There was limited or inconsistent evidence for the other factors.

CONCLUSION

Based on the levels of evidence, injury severity should be considered as one of the key barriers to RTW in the early and late phases postinjury. This finding underlines the need for serious injury prevention efforts. Our results also emphasize the multifaceted actions of the biopsychosocial model to facilitate RTW: promoting policies for older injured workers, improving access to medical and rehabilitation facilities, and adapting physical workload. Multiple other factors are likely important but require additional high-quality studies to assess their role in the RTW process.

Organisational and relational factors that influence return to work and job retention: The contribution of activity ergonomics

BACKGROUND

Work is a determinant of employee health, and the same conditions that contribute to an illness do not favour return to work; consequently, they hinder job retention, other employees can become ill and new leaves are generated.

OBJECTIVE

To analyse the nursing technicians work in intensive and semi-intensive care units (ICUs and SICUs) and discuss the influence of organisational and relational factors on return to work and job retention. This study also discusses the contributions of activity ergonomics to these processes.

METHOD

Qualitative case study based on ergonomic work analysis (EWA). Data were collected using documentary analyses, and global, systematic, and participant observations involving nursing technicians working in ICUs and SICUs.

RESULTS

Task planning and the staff size adjustment to respond to the work demands of these units were ineffective in real-world situations and were aggravated by cases of absenteeism, medical leave, and employees returning to work.

CONCLUSIONS

Work structure limits return to work and job retention. An EWA based on the activities developed by professionals is a valid tool for understanding working processes by applying transforming actions to real-world work situations.

Medically graded reduced capacity to work (RCW) following significant injury as explained by patient related outcome measures (PROMs) - A prospective trauma center evaluation

BACKGROUND

Data is limited how well patient-reported longer-term outcome measures (PROMs) explain medically graded reduced capacity for work (RCW).

OBJECTIVE

This prospective study investigates the association of RCW with several PROMs in addition to demographic and injury-related variables in significantly injured of working age.

METHODS

Patients (New Injury Severity Score, NISS ≥ 8) were recruited consecutively. RCW, as registered by the largest Swiss accident insurer, was tested against demographic, trauma and treatment characteristics, and patients' contemporaneous two year rating of functional outcome and quality of life following trauma with measures such as the Short-Form (SF)-36 or Trauma Outcome Profile (TOP), using uni- and multivariable analysis.

RESULTS

140 patients (mean 42 years, 2-year RCW rate 21%) participated in the longer-term follow-up of self-rated outcome. In multivariable analysis, all investigated baseline factors together accounted for 48% of the variance explaining 2-year postinjury RCW with 31% contributed by demographic, injury or treatment related variables, and 17% by patients' condition at hospital discharge. Patients' self-rated longer-term outcome provided 61% of the information on concurrent RCW, whereby 53% identified worsening of physical function (SF-36) and additional 8% constraints in daily activities (TOP). Four variables (Glasgow Outcome Scale at the time of hospital discharge and SF-36 physical functioning, TOP daily activities, SF-36 role physical at two years) explained 71% of RCW, corresponding to an area under the curve (AUC) of 0.95.

CONCLUSIONS

Objectively graded RCW 2 years after injury was found to be well explained by the combined information of patients' subjective longer-term outcome together with basic patient, trauma and treatment characteristics.