Table 2 Odds ratios of covariate risk factors predicting level of maternal smoking in B.C. 2001-2006 (n = 163,867)
Characteristic | OR (95% CI) | OR (95% CI) | OR (95% CI) |
|---|---|---|---|
| Â | Level 1 Vs. | Level 1+2 | Level 1+2+3 |
| Â | Level 2+3+4 | Vs. Level 3+4 | Vs. Level 4 |
Young Maternal Age (< 25) | 3.66 (3.52-3.80) | 3.27 (3.13-3.42) | 2.86 (2.70-3.02) |
Older Maternal Age (≥ 35) | 0.67 (0.64-0.71) | 0.71 (0.67-0.76) | 0.77 (0.71-0.83) |
Single Parent | 2.42 (2.31-2.53) | 2.25 (2.14-2.37) | 2.27 (2.14-2.42) |
Parity ≥ 1 | 1.26 (1.22-1.31) | 1.49 (1.43-1.55) | 1.59 (1.51-1.68) |
Alcohol Indication | 3.06 (2.63-3.57) | 2.41 (2.08-2.81) | 2.20 (1.88-2.59) |
Drug Indication | 10.19 (9.32-11.15) | 8.17 (7.50-8.90) | 7.65 (6.99-8.39) |
Prenatal Care Visits (≤ 3) | 1.39 (1.23-1.58) | 1.39 (1.23-1.58) | 1.39 (1.23-1.58) |
Pre-existing Diabetes | 1.27 (0.99-1.64) | 1.27 (0.99-1.64) | 1.27 (0.99-1.64) |
Pre-pregnancy weight (≥ 75 kg) | 1.48 (1.43-1.54) | 1.49 (1.43-1.56) | 1.56 (1.48-1.65) |