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Open Access Highly Accessed Research article

Cost-utility analysis of a one-time supervisor telephone contact at 6-weeks post-partum to prevent extended sick leave following maternity leave in The Netherlands: results of an economic evaluation alongside a randomized controlled trial

Kimi Uegaki12, Suzanne GM Stomp-van den Berg23, Martine C de Bruijne2*, Mireille NM van Poppel23, Martijn W Heymans45, Willem van Mechelen23 and Maurits W van Tulder15

Author Affiliations

1 Health Technology Assessment Unit, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands

2 Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands

3 Body@Work, Research Center Physical Activity, Work and Health, TNO-VUmc, Amsterdam, The Netherlands

4 EMGO Institute for Health and Care Research and Department of Clinical Epidemiology & Biostatistics, VU University Medical Center, Amsterdam, The Netherlands

5 Institute of Health Sciences, Faculty of Earth and Life Sciences, VU University, Amsterdam, The Netherlands

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BMC Public Health 2011, 11:57  doi:10.1186/1471-2458-11-57

Published: 27 January 2011

Abstract

Background

Working women of childbearing age are a vital part of the population. Following childbirth, this group of women can experience a myriad of physical and mental health problems that can interfere with their ability to work. Currently, there is little known about cost-effective post-partum interventions to prevent work disability. The purpose of the study was to evaluate whether supervisor telephone contact (STC) during maternity leave is cost-effective from a societal perspective in reducing sick leave and improving quality-adjusted life years (QALYs) compared to common practice (CP).

Methods

We conducted an economic evaluation alongside a randomized controlled trial. QALYs were measured by the EuroQol 5-D, and sick leave and presenteeism by the Health and work Performance Questionnaire. Resource use was collected by questionnaires. Data were analysed according to intention-to-treat. Missing data were imputed via multiple imputation. Uncertainty was estimated by 95% confidence intervals, cost-utility planes and curves, and sensitivity analyses.

Results

541 working women from 15 companies participated. Response rates were above 85% at each measurement moment. At the end of the follow-up, no statistically significant between-group differences in QALYs, mean hours of sick leave or presenteeism or costs were observed. STC was found to be less effective and more costly. For willingness-to-pay levels from €0 through €50,000, the probability that STC was cost-effective compared to CP was 0.2. Overall resource use was low. Mean total costs were €3678 (95% CI: 3386; 3951). Productivity loss costs represented 37% of the total costs and of these costs, 48% was attributable to sick leave and 52% to work presenteeism. The cost analysis from a company's perspective indicated that there was a net cost associated with the STC intervention.

Conclusions

STC was not cost-effective compared to common practice for a healthy population of working mothers; therefore, implementation is not indicated. The cost-utility of STC for working mothers with more severe post-partum health problems, however, needs to be investigated. Work presenteeism accounted for half of the total productivity loss and warrants attention in future studies.

Trial registration number

ISRCTN: ISRCTN73119486