Severity of acute pain after childbirth, but not type of delivery, predicts persistent pain and postpartum depression.
Eisenach JC, Pan PH, Smiley R, Lavand'homme P, Landau R, Houle TT. Severity of acute pain after childbirth, but not type of delivery, predicts persistent pain and postpartum depression. Pain. 2008 Nov 15; 140(1):87-94.