Background: Assessment of women’s childbirth experience is an important indicator in maternity services. Positive childbirth experiences improve mothers’ health, whereas negative childbirth experiences can cause psychological stresses and, in extreme cases, may lead to postpartum depression. Methods: In this cohort study, 204 women at 35–37 weeks of gestation were selected using cluster sampling from the health centers of Tabriz, Iran. Women were divided into three groups (68 women in each group) based on their attendance in childbirth preparation classes: (a) non-attenders (did not atte...