Table 7.

Univariate and multivariable analysis of variables associated with the belief that there are risks to their infants in gaining inadequate gestational weight

Variable	Comparison groups	Crude odds ratio (95% CI)	P-value	Adjusted odds ratio (95% CI)	P-value
Study group	KT group vs. control group [9] (reference)	2.70 (1.49-5.00)	0.001*	2.48 (1.14-5.37)	0.021†
Maternal age	Age as a continuous variable (per year)	0.98 (0.93-1.04)	0.565	-	-
Ethnicity	Caucasian vs. non-Caucasian (reference)	1.82 (0.89-3.70)	0.105	-	-
Education	Any post-secondary education vs. secondary education or less (reference)	4.43 (1.79-10.97)	0.001*	5.36 (1.50-19.17)	0.010†
Income	Low vs. middle income (reference)	0.53 (0.20-1.40)	0.199	0.56 (0.17-1.88)	0.350
	High vs. middle income (reference)	1.96 (1.00-3.85)	0.050*	1.52 (0.67-3.45)	0.315
Smoking	Current smoker vs. non-smoker (reference)	0.34 (0.11-1.00)	0.051*	0.87 (0.18-4.15)	0.866
Chronic health condition	Has chronic health condition vs. does not have chronic health condition (reference)	3.02 (1.44-6.32)	0.003*	3.39 (1.32-8.69)	0.011†
Pregnancy history	First birth vs. one or more previous birth (reference)	2.43 (1.36-4.36)	0.003*	2.10 (1.00-4.42)	0.051
Prepregnancy BMI group	Underweight vs. normal weight (reference)	0.50 (0.17-1.46)	0.206*	0.82 (0.21-3.14)	0.775
	Overweight vs. normal weight (reference)	0.45 (0.23-0.89)	0.022*	0.45 (0.20-1.05)	0.064
	Obese vs. normal weight (reference)	0.14 (0.05-0.37)	<0.001*	0.09 (0.03-0.31)	<0.001†

Abbreviations: BMI body mass index, CI confidence interval, KT knowledge translation.

*Variable was included in multivariable logistic regression model (p ≤ 0.10).

^†Variable was statistically significant in multivariable logistic regression model (p < 0.05).