Table 2.
Association of fetal chromosomal abnormalities with maternal characteristics (categorical variables)
| Normal | Abnormal | P | Crude OR (95% CI) | |
|---|---|---|---|---|
| Folic acid supplementation | ||||
| No | 13 (21.7) | 19 (19.0) | ||
| Yes | 47 (78.3) | 81 (81.0) | 0.683 | 1,18 (0.53, 2.60) |
| Previous miscarriages (n) | ||||
| < 1 | 30 (50.0) | 66 (66.0) | ||
| ≥ 1 | 30 (50.0) | 34 (34.0) | 0.046 | 0.52 (0.27, 0.99)* |
| Exposure to paint | ||||
| No | 59 (98.3) | 92 (92.0) | ||
| Yes | 1 (1.7) | 8 (8.0) | 0.184 | 5.13 (0.63, 42.08) |
| Perceived noises | ||||
| No | 46 (76.7) | 92 (92.0) | ||
| Yes | 14 (23.3) | 8 (8.0) | 0.006 | 0.29 (0.11, 0.73)** |
| Pesticide exposure | ||||
| No | 53 (88.3) | 91 (91.0) | ||
| Yes | 7 (11.7) | 9 (9.0) | 0.586 | 0.75 (0.26, 2.13) |
| Repellent exposure | ||||
| No | 50 (83.3) | 84 (84.0) | ||
| Yes | 10 (16.7) | 16 (16.0) | 0.912 | 0.95 (0.40, 2.26) |
| Passive smoking | ||||
| No | 26 (43.3) | 45 (45.0) | ||
| Yes | 34 (56.7) | 55 (55.0) | 0.837 | 0.94 (0.49, 1.78) |
| Alcohol use | ||||
| No | 57 (95.0) | 96 (96.0) | ||
| Yes | 3 (5.0) | 4 (4.0) | 1.000 | 0.79 (0.17, 3.67) |
| Exposure to PAH | ||||
| No | 48 (80.0) | 89 (89.0) | ||
| Yes | 12 (20.0) | 11 (11.0) | 0.116 | 0.49 (0.20, 1.20) |
Bold font indicates statistical significance; the 95% CI does not include 1
Abbreviations: PAH Polycyclic aromatic hydrocarbons
*indicates P < 0.05
**indicates P < 0.01