From the *School of Rehabilitation, Faculty of Medicine, University of Montreal, Montreal, Canada; †Rehabilitation Institute of Montreal, Research Center for Interdisciplinary Research in Rehabilitation of Montreal, Montreal, Canada; ‡Department of Obstetrics and Gynecology, Maisonneuve-Rosemont Hospital, Montreal, Canada; §Faculty of Medicine, University of Montreal, Montreal, Canada; ¶Department of Community Health Sciences, Faculty of Medicine, University of Sherbrooke, Sherbrooke, Canada; and ∥Research Center on Aging, Sherbrooke University Geriatric Institute, Sherbrooke, Canada.
Supported by the Canadian Institutes of Health Research and Laborie Medical Technologies Inc. through a Canadian Institutes of Health Research–Industry grant. C. Dumoulin was supported by studentships from the Canadian Institutes of Health Research and from the Fonds de la Recherche en Santé du Québec.
The authors thank Dr. Robert Gauthier and members of the Department of Obstetrics and Gynecology of Sainte-Justine’s Hospital in Montreal, Canada, for their assistance with data collection.
Address reprint requests to: Chantale Dumoulin, Rehabilitation Institute of Montreal, Research Center for Interdisciplinary Research in Rehabilitation of Montreal, 6300 Darlington, Montreal, Quebec, Canada H3S 2J4; e-mail: dumoulin@sympatico.ca.
Received March 9, 2004. Received in revised form April 29, 2004. Accepted May 7, 2004.