Main findings
Our systematic review and meta-analysis indicated that the incidence of PTSD following traumatic childbirth was 19.2%. This figure was much higher than the 4% in the general postpartum population[18], suggesting that traumatic childbirth is a strong risk factor for postpartum PTSD. The effect size varied greatly in different countries, especially in developing countries, the incidence of PTSD following traumatic childbirth was higher.