Table 2.
ALL Incidence Risk by Parental and Family Characteristics
| Characteristics | Cases n = 125 | Controls n = 130 | Odds ratio (95% CI) | P-value |
|---|---|---|---|---|
| Father's smoking; n (%) | 0.50 (0.22 - 1.13) | 0.09 | ||
| Yes | 26 (20.8) | 45 (34.6) | ||
| No | 99 (79.2) | 85(65.4) | ||
| Family income; n (%) | 3.24 (1.33 - 7.91) | 0.08 | ||
| Low | 44 (35.2) | 19 (14.6) | ||
| Medium or high | 81 (64.8) | 111 (85.4) | ||
| Malignancy in first-degree relatives; n (%) | 0.17 (0.02-1.46) | 0.07 | ||
| Yes | 9 (7.2) | 12 (9.3) | ||
| No | 116 (92.8) | 118 (90.7) | ||
| Malignancy in second-degree relatives; n (%) | 0.94 (0.44 - 1.98) | 0.87 | ||
| Yes | 43 (34.4) | 48 (36.9) | ||
| No | 82 (65.6) | 82 (63.1) | ||
| Child care; n (%) | 4.58(0.95 - 22.20) | 0.04 | ||
| Home | 114 (91.2) | 110 (84.6) | ||
| Kindergarten | 11 (8.8) | 20 (15.4) | ||
| Father's education level; n (%) | 2.67 (1.10 - 6.45) | 0.02 | ||
| ≤ High school | 84 (67.2) | 86 (66.1) | ||
| ≥ High school | 41 (32.8) | 44 (33.9) | ||
| Mother's education level; n (%) | 1.55 (0.65 - 3.66) | 0.32 | ||
| ≤ High school | 101 (80.8) | 95 (73.1) | ||
| ≥ High school | 24 (19.2) | 35 (26.9) | ||
| Mother age at pregnancy, n (%) | 1.48 (0.31- 0.6.8) | 0.41 | ||
| Mean of years ± SD | 28.2 ± 2.4 | 25.6 ± 3.7 | ||
| ≤19 | 22 (17. 6) | 27 (20.8) | ||
| 20-25 | 30 (24.0) | 47 (36.1) | ||
| 26-30 | 23 (18.4) | 29 (22.3) | ||
| 31-35 | 37 (29.6) | 19 (14.7) | ||
| ≥35 | 13 (10.4) | 8 (6.1) | ||
| Father's job; n (%) | 0.20 (0.08 - 0.51) | 0.001 | ||
| Employee | 16 (12.8) | 54 (41.5) | ||
| Freelance | 109 (87.2) | 76 (58.5) | ||
| Mother's job; n (%) | 0.60 (0.17 - 2.18) | 0.43 | ||
| Employee | 9 (7.2) | 15 (11.5) | ||
| Freelance | 116 (92.8) | 115 (88.5) | ||
| Use of hair dye during pregnancy by mother; n (%) | 0.87(0.32 - 2.37) | 0.77 | ||
| Yes | 18 (14.4) | 21 (16.1) | ||
| No | 107 (85.6) | 109 (83.8) | ||