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Table 5 Univariate and multivariable analysis of variables associated with the belief that there are risks to themselves in gaining excess gestational weight

From: Knowledge translation tool to improve pregnant women’s awareness of gestational weight gain goals and risks of gaining outside recommendations: a non-randomized intervention study

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)

2.22 (1.16-4.17)

0.015*

1.53 (0.66-3.53)

0.323

Maternal age

Age as a continuous variable (per year)

1.09 (1.02-1.16)

0.008*

0.95 (0.87-1.04)

0.285

Ethnicity

Caucasian vs. non-Caucasian (reference)

1.15 (0.54-2.44)

0.718

-

-

Education

Any post-secondary education vs. secondary education or less (reference)

12.32 (5.19-29.25)

<0.001*

13.47 (4.03-44.97)

<0.001

Income

Low vs. middle income (reference)

0.50 (0.20-1.26)

0.141

0.76 (0.25-2.30)

0.632

High vs. middle income (reference)

4.25 (1.83-9.90)

0.001*

3.63 (1.38-9.52)

0.009

Smoking

Current smoker vs. non-smoker (reference)

0.18 (0.07-0.47)

0.001*

0.95 (0.23-3.91)

0.947

Chronic health condition

Has chronic health condition vs. does not have chronic health condition (reference)

2.43 (1.01-1.16)

0.009*

2.34 (0.78-7.04)

0.132

Pregnancy history

First birth vs. one or more previous birth (reference)

1.65 (0.88-3.11)

0.122

-

-

Prepregnancy BMI

Underweight vs. normal weight (reference)

0.48 (0.17-1.39)

0.175

-

-

Overweight vs. normal weight (reference)

0.92 (0.42-1.98)

0.825

-

-

Obese vs. normal weight (reference)

0.58 (0.24-1.43)

0.238

-

-

  1. Abbreviations: BMI body mass index, CI confidence interval, KT knowledge translation.
  2. *Variable was included in multivariable logistic regression model (p ≤ 0.10).
  3. Variable was statistically significant in multivariable logistic regression model (p < 0.05).