. Author manuscript; available in PMC: 2015 Sep 1.

Published in final edited form as: Matern Child Health J. 2015 Sep;19(9):2066–2073. doi: 10.1007/s10995-015-1719-9

Table 4. Mean (standard error) gestational weight gain by preterm status and interquartile range of gestational weight gain across all pregnancies.

Gestational weight gain (GWG) measure^a	Term N = 11,805 Mean (SE)^b	Preterm N = 721 Mean (SE)^b	Interquartile range
Total GWG in first trimester (kg)	2.4 (0.03)	2.4 (0.11)	0.6-3.9
Total GWG in first and second trimesters (kg)	10.7 (0.04)	10.6 (0.16)	8.2-12.9
AUC for first and second trimesters (kg/days)	761.6 (4.3)	756.7 (17.7)	475.9-1,015.4

kg kilogram, AUC area under the curve

Trimesters defined as first: ≤13.0 weeks, second: ≤28.0 weeks

Standard errors (SE) accounted for clustering of more than one pregnancy within the same mother