Table 1 Maternal and Infant Characteristics of Childhood Acute Lymphocytic Leukemia Cases and Controls at Birth in Texas, 1995-2011
Characteristic | Cases | Controls | Crude ORa (95 % CI) |
|---|---|---|---|
N = 1,248 | N = 12,172 | ||
Maternal Age (years) (Mean (SD)) | 26.8 (6.2) | 26.1 (6.0) | 1.02 (1.01, 1.03) |
Birth weight (grams) (Mean (SD)) | 3411.6 (525.1) | 3309.7 (549.7) | 1.04b (1.03, 1.05) |
Infant Gender (%) | |||
Male | 55.5 | 52.0 | 1.15 (1.02, 1.30) |
Female | 44.5 | 48.0 | 1.00 |
Marital Status (%) | |||
Married | 70.4 | 66.9 | 1.00 |
Not Married | 29.6 | 33.0 | 0.85 (0.75, 0.97) |
Cigarette Smoking during Pregnancy (%) | |||
Yes | 5.4 | 6.0 | 0.89 (0.68, 1.15) |
No | 93.5 | 93.0 | 1.00 |
Percentage Living Below Poverty Levelc (%) | |||
< 20 % | 66.2 | 65.3 | 1.00 |
20 % | 33.8 | 34.7 | 0.96 (0.85, 1.08) |
Maternal Educationd (%) | |||
Elementary | 29.6 | 29.4 | 1.17 (0.89, 1.53) |
Before high school | 19.3 | 20.2 | 1.03 (0.86, 1.24) |
High school | 21.1 | 22.7 | 1.00 |
Associate degree | 14.3 | 12.7 | 1.21 (0.99, 1.48) |
Bachelor and graduate degree | 15.0 | 13.8 | 1.17 (0.96, 1.43) |
Maternal Race/Ethnicity (%) | |||
White, Non-Hispanic | 40.6 | 38.4 | 1.00 |
Black, Non-Hispanic | 5.5 | 12.4 | 0.41 (0.32, 0.54) |
Hispanic | 50.6 | 45.6 | 1.05 (0.93, 1.20) |
Other | 3.3 | 3.6 | 0.86 (0.61, 1.20) |