Table 3.
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) | 3.70 (2.38-5.56) | <0.001* | 3.45 (2.22-5.37) | <0.001† |
Maternal age | Age as a continuous variable (per year) | 1.00 (0.96-1.03) | 0.865 | - | - |
Ethnicity | Caucasian vs. non-Caucasian (reference) | 1.16 (0.74-1.82) | 0.526 | - | - |
Education | Any post-secondary education vs. secondary education or less (reference) | 1.21 (0.74-1.97) | 0.440 | - | - |
Income | Low vs. middle income (reference) | 1.06 (0.59-1.92) | 0.845 | - | - |
High vs. middle income (reference) | 1.24 (0.78-1.95) | 0.364 | - | - | |
Smoking | Current smoker vs. non-smoker (reference) | 1.19 (0.63-2.22) | 0.592 | - | - |
Chronic health condition | Has chronic health condition vs. does not have chronic health condition (reference) | 1.00 (0.62-1.59) | 0.988 | - | - |
Pregnancy history | First birth vs. one or more previous birth (reference) | 1.73 (1.17-2.57) | O0.006* | 1.75 (1.15-2.67) | 0.010† |
Prepregnancy BMI | Underweight vs. normal weight (reference) | 1.42 (0.66-3.08) | 0.369 | 1.42 (0.64-3.17) | 0.392 |
Overweight vs. normal weight (reference) | 1.72 (1.06-2.78) | 0.028* | 1.80 (1.08-3.01) | 0.024† | |
Obese vs. normal weight (reference) | 1.26 (0.71-2.24) | 0.434 | 1.32 (0.71-2.46) | 0.378 |
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).