Table 5.
Univariate and multivariable analysis of variables associated with the belief that there are risks to themselves in gaining excess 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) | 2.22 (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 | - | - |
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).