We followed up 10,400 women with singleton deliveries in the Norwegian Mother and Child Cohort Study who reported PGS in pregnancy week 30 (1999 through 2008). Data were obtained by 3 self-administered questionnaires and linked to the Medical Birth Registry of Norway.
Planned cesarean section was associated with the presence of severe PGS 6 months postpartum (adjusted odds ratio [OR], 2.3; 95 % confidence interval [CI], 1.4-3.9). In women who used crutches during pregnancy, emergency (adjusted OR, 2.0; 95 % CI, 1.0-4.0) and planned (adjusted OR, 3.3; 95 % CI, 1.9-5.9) cesarean section were each associated with severe PGS.
The results suggest an increased risk of severe PGS 6 months postpartum in women who underwent a cesarean section vs women who had an unassisted vaginal delivery.