Early maternal weight gain as a risk factor for SGA in pregnancies with hyperemesis gravidarum: a 15-year hospital cohort study

Table 3 Logistic regression for 370 women treated for hyperemesis gravidarum, predicting inadequate total maternal weight gain^a (n = 175 women did not achieve aimed weight gain)

	Univariate OR^b	95% CI^c	p-value	Multivariate OR	95% CI	p-value
Weight loss prepregnancy to nadir^d	1.17	.09–1.26	< 0.001	1.05	0.97–1.15	0.245
Prepregnancy weight regained week 13-18^e
Regained n = 193	1			1
Not Regained n = 177	7.26	4.59–11.49	< 0.001	7.05	4.24–11.71	< 0.001
Smoking status
Smoking n = 16	1			1
Not smoking n = 354	0.86	0.31–2.36	0.772	0.72	0.23–2.24	0.568
Body mass index	1.01	0.97–1.05	0.701	0.96	0.91–1.01	0.094
Age at admission	0.99	0.96–1.03	0.772	1.01	0.96–1.05	0.775

^a: As aimed due to prepregnancy Body Mass Index, categorized and using limits for aimed total maternal weight gain according to Institute of Medicine (IOM) 2009 guidelines [18], ^b: Odds ratio, ^c: Confidence interval,
^d: Lowest registered weight before start of treatment, ^e: Regained = Regained prepregnancy weight by week 13, 14, 15, 16, 17 or 18

ISSN: 1471-2393