Table 6.
Univariate and multivariable analysis of variables associated with the belief that there are risks to themselves 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) | 1.96 (1.01-3.70) | 0.046* | 1.99 (0.92-4.30) | 0.080 |
| Maternal age | Age as a continuous variable (per year) | 1.00 (0.94-1.06) | 0.991 | - | - |
| Ethnicity | Caucasian vs. non-Caucasian (reference) | 0.78 (0.38-1.64) | 0.522 | - | - |
| Education | Any post-secondary education vs. secondary education or less (reference) | 2.11 (0.82-5.42) | 0.121 | - | - |
| Income | Low vs. middle income (reference) | 1.07 (0.36-3.19) | 0.910 | 1.06 (0.33-3.40) | 0.916 |
| High vs. middle income (reference) | 2.18 (1.01-4.70) | 0.046* | 2.18 (0.97-4.93) | 0.061 | |
| Smoking | Current smoker vs. non-smoker (reference) | 0.54 (0.17-1.68) | 0.286 | - | - |
| Chronic health condition | Has chronic health condition vs. does not have chronic health condition (reference) | 1.06 (0.52-2.17) | 0.874 | - | - |
| Pregnancy history | First birth vs. one or more previous birth (reference) | 1.46 (0.79-2.70) | 0.229 | - | - |
| Prepregnancy BMI | Underweight vs. normal weight (reference) | 0.27 (0.07-0.99) | 0.048* | 0.34 (0.09-1.30) | 0.115 |
| Overweight vs. normal weight (reference) | 0.44 (0.21-0.90) | 0.025* | 0.44 (0.19-0.98) | 0.044† | |
| Obese vs. normal weight (reference) | 0.05 (0.01-0.37) | 0.003* | 0.05 (0.01-0.36) | 0.003† |
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).