OBJECTIVE: The aim was to investigate maternal background factors' significance in relation to risk of elective and emergency caesarean sections (CS) in Sweden. STUDY DESIGN: Population-based, retrospective, cross-sectional study. The Swedish Maternal Health Care Register (MHCR) is a national quality register that collects data on pregnancy, delivery and postpartum period. All @entity1 registered in MHCR 2011 to 2012 were included in the study sample (N   =   178,716). MAIN OUTCOMES: The risk of elective and emergency caesarean section in relation to age, parity, education, country of origin, weight in @entity2099 and @entity1017 during pregnancy was calculated in logistic regression models. RESULTS: Multiparous @entity1 demonstrated a doubled risk of elective CS compared to primiparous @entity1 , but their risk for emergency CS was halved. Overweight and @entity28 at enrolment in antenatal care increased the risk for emergency CS, irrespective of parity. @entity1017 above recommended international levels (Institute of Medicine, IOM) during pregnancy increased the risk for emergency CS for @entity1 with normal weight, overweight or @entity28 . CONCLUSION: There is a need of national guidelines on recommended @entity1017 during pregnancy in Sweden. We suggest that the usefulness of the IOM guidelines for @entity1017 during pregnancy should be evaluated in the Swedish context.

High XXXX during pregnancy increases the risk for emergency caesarean section - Population-based data from the Swedish Maternal Health Care Register 2011-2012.

@entity1 :: ('9606', 'Species') :: ['women'] @entity2099 :: ('MESH:D011254', 'Disease') :: ['early pregnancy'] @entity28 :: ('MESH:D009765', 'Disease') :: ['obesity'] @entity1017 :: ('MESH:D015430', 'Disease') :: ['Weight gain', 'weight gain']
@entity1017 :: (MESH:D015430,Disease) :: ['weight gain']
