TY - JOUR
T1 - 3rd place, PREMUS 1 best paper competition
T2 - Development of the return-to-work self-efficacy (RTWSE-19) questionnaire - psychometric properties and predictive validity
AU - Shaw, William S.
AU - Reme, Silje Endresen
AU - Linton, Steven J.
AU - Huang, Yueng Hsiang
AU - Pransky, Glenn
PY - 2011/3
Y1 - 2011/3
N2 - Objective The 19-item return-to-work self-efficacy (RTWSE-19) scale is a new self-report measure intended to assess workers' beliefs of their current ability to resume normal job responsibilities following pain onset. The aim of this study was to evaluate the factor structure, internal consistency, and predictive and concurrent validity of RTWSE-19 among workers with acute low-back pain. Methods Patients (N=399, 59% male, mean age 37 years) consulting for acute, work-related low-back pain completed an original 28-item version of the new scale along with concurrent measures of pain, functional limitation, activity avoidance, workplace physical demands, and pain catastrophizing. The assessment was repeated at visit 2, and work limitations and duration of sickness absence were assessed by questionnaire at 3-month follow-up. Exploratory factor analysis (principal component analysis with varimax rotation) was used to assess content validity of the scale, and scores were compared to concurrent pain measures and with disability outcomes at 3 months. Results The full response range (1-10) was utilized on all 28 items, and there were no ceiling or floor effects. Mean item scores ranged from 4.9 ("reducing physical workload") to 8.3 ("describing injury to supervisor"). The exploratory factor analysis supported three underlying factors (eigenvalue >1.0): (i) meeting job demands; (ii) modifying job tasks; and (iii) communicating needs to others. Internal consistency (alpha) for the three scales were 0.98, 0.92, and 0.81, respectively. At visit 2, self-efficacy scores improved for "meeting job demands" and "modifying job tasks", but not for "communicating needs to others". After controlling for pain and functional limitation, both sickness absence and persistent work limitations were predicted by self-efficacy assessed at visit 2 (P<0.05), but self-efficacy assessed at visit 1 did not predict sickness absence. Conclusions The RTWSE-19 is a new measure with adequate reliability and validity to measure the confidence of workers to meet job demands, modify job tasks, and communicate needs to co-workers and supervisors. When assessed 1-2 weeks after pain onset, the scale is predictive of disability outcomes.
AB - Objective The 19-item return-to-work self-efficacy (RTWSE-19) scale is a new self-report measure intended to assess workers' beliefs of their current ability to resume normal job responsibilities following pain onset. The aim of this study was to evaluate the factor structure, internal consistency, and predictive and concurrent validity of RTWSE-19 among workers with acute low-back pain. Methods Patients (N=399, 59% male, mean age 37 years) consulting for acute, work-related low-back pain completed an original 28-item version of the new scale along with concurrent measures of pain, functional limitation, activity avoidance, workplace physical demands, and pain catastrophizing. The assessment was repeated at visit 2, and work limitations and duration of sickness absence were assessed by questionnaire at 3-month follow-up. Exploratory factor analysis (principal component analysis with varimax rotation) was used to assess content validity of the scale, and scores were compared to concurrent pain measures and with disability outcomes at 3 months. Results The full response range (1-10) was utilized on all 28 items, and there were no ceiling or floor effects. Mean item scores ranged from 4.9 ("reducing physical workload") to 8.3 ("describing injury to supervisor"). The exploratory factor analysis supported three underlying factors (eigenvalue >1.0): (i) meeting job demands; (ii) modifying job tasks; and (iii) communicating needs to others. Internal consistency (alpha) for the three scales were 0.98, 0.92, and 0.81, respectively. At visit 2, self-efficacy scores improved for "meeting job demands" and "modifying job tasks", but not for "communicating needs to others". After controlling for pain and functional limitation, both sickness absence and persistent work limitations were predicted by self-efficacy assessed at visit 2 (P<0.05), but self-efficacy assessed at visit 1 did not predict sickness absence. Conclusions The RTWSE-19 is a new measure with adequate reliability and validity to measure the confidence of workers to meet job demands, modify job tasks, and communicate needs to co-workers and supervisors. When assessed 1-2 weeks after pain onset, the scale is predictive of disability outcomes.
KW - Low-back pain
KW - RTWSE-19
KW - Return to work
KW - Self-report measure
UR - http://www.scopus.com/inward/record.url?scp=79957635472&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957635472&partnerID=8YFLogxK
U2 - 10.5271/sjweh.3139
DO - 10.5271/sjweh.3139
M3 - Article
C2 - 21203742
AN - SCOPUS:79957635472
SN - 0355-3140
VL - 37
SP - 109
EP - 119
JO - Scandinavian Journal of Work, Environment and Health
JF - Scandinavian Journal of Work, Environment and Health
IS - 2
ER -