BJOG: An International Journal of Obstetrics and Gynaecology, 03/04/2013 CONCLUSION: Compared with primary emergency caesarean section, primary elective caesarean section significantly increased the risk of placenta accreta in a subsequent pregnancy in the presence of *placenta praevia (OR 3.00; 95% CI 1.47–6.12; P = 0.025). *editor’s note: Obviously, follow-up studies on women with previas (all of whom had pre-labor Cesareans) […]