Procedure and study arms
Each workday, three midwives volunteering for the study (two half-time at Sainte-Musse and one full-time at Saint-Joseph) visited mothers who had given birth the previous day, identified from each maternity ward's delivery register. The midwives presented the objectives of the study to the mothers and their partners (if present), checked the inclusion/exclusion criteria and collected their consent. Midwives registered mothers who agreed to participate on a tablet computer containing software that automatically randomly assigned participants to the groups with a 1:1 ratio, in blocks of eight, after completing the first questionnaire, to avoid bias.