Table 3 Adjusted odds ratios ^† and 95% confidence interval for a gestational weight gain higher than the IOM’s recommendation (GWG > IOM rec.) with gestational weight gain according to the IOM’s recommendations (GWG = IOM rec.) as reference for birth outcomes among 29 931 nulliparous and 26 170 parous women

Not estimable^§

Not estimable^§

1.83 (0.75,4.50)

1.71 (0.85,3.43)

2.65 (2.09,3.35)***

1.76 (1.41,2.20)***

2.44 (2.03,2.92)***

1.44 (1.28,1.62)***

1.57 (1.05,2.35)*

1.55 (1.03,2.32)*

2.87 (1.96,4.88)***

1.42 (1.14,1.77)**

1.50 (0.95,2.37)

1.32 (0.80,2.17)

1.70 (1.17,2.47)**

1.39 (1.04,1.84)*

2.90 (0.70,12.15)

Not estimable^§

4.63 (0.50,42.93)

1.25 (0.40,3.91)

2.03 (1.73,2.38)***

1.60 (1.14,2.25)**

2.19 (1.62,2.96)*

1.48 (1.23,1.78)***

2.04 (1.56,2.66)***

1.14 (0.71,1.83)

1.50 (1.01,2.24)*

1.95 (1.41,2.69)***

2.19 (1.55,3.11)***

1.54 (0.91,2.59)

1.49 (0.96,2.32)

1.21 (0.85,1.73)