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) | 6.67 (3.85-11.11) | <0.001* | 7.96 (4.41-14.37) | <0.001† |
Maternal age | Age as a continuous variable (per year) | 0.99 (0.95-1.02) | 0.467 | - | - |
Ethnicity | Caucasian vs. non-Caucasian (reference) | 0.67 (0.42-1.06) | 0.091* | 0.52 (0.31-0.89) | 0.018† |
Education | Any post-secondary education vs. secondary education or less (reference) | 1.52 (0.95-2.43) | 0.083* | 1.43 (0.83-2.47) | 0.196 |
Income | Low vs. middle income (reference) | 0.81 (0.45-1.43) | 0.462 | - | - |
High vs. middle income (reference) | 1.32 (0.83-2.08) | 0.239 | - | - | |
Smoking | Current smoker vs. non-smoker (reference) | 0.74 (0.40-1.37) | 0.344 | - | - |
Chronic health condition | Has chronic health condition vs. does not have chronic health condition (reference) | 1.00 (0.63-1.61) | 0.987 | - | - |
Pregnancy history | First birth vs. one or more previous birth (reference) | 2.24 (1.49-3.35) | 0.001* | 2.60 (1.66-4.07) | <0.001† |
Prepregnancy BMI | Underweight vs. normal weight (reference) | 1.76 (0.77-4.02) | 0.178 | - | - |
Overweight vs. normal weight (reference) | 1.40 (0.85-2.30) | 0.182 | - | - | |
Obese vs. normal weight (reference) | 0.86 (0.49-1.53) | 0.616 | - | - |