Table 1.
Demographic characteristics of cases (unilateral and bilateral) and controls1.
| Controls (%) | Unilateral RB (%) | Bilateral RB (%) | |
|---|---|---|---|
|
| |||
| N=155 | N=187 | N=95 | |
|
|
|||
| Father’s Race | |||
| White non-Hispanic | 104 (67.1) | 96 (51.3) | 59 (62.1) |
| African American/Black non-Hispanic | 7 (4.5) | 12 (6.4) | 5 (5.2) |
| Hispanic | 22 (14.2) | 34 (18.2) | 16 (16.8) |
| Other | 9 (5.8) | 25 (13.4) | 11 (11.6) |
| Father’s age at child’s birth | |||
| <25 | 11 (7.1) | 16 (8.6) | 7 (7.4) |
| 25-29 | 40 (25.8) | 35 (18.7) | 19 (20.0) |
| 30-34 | 47 (30.3) | 53 (28.3) | 29 (30.5) |
| 35-39 | 32 (20.6) | 42 (22.5) | 22 (23.2) |
| 40+ | 13 (8.4) | 20 (10.7) | 13 (13.7) |
| Father’s smoking status | |||
| Never smoked | 94 (60.6) | 91 (48.7) | 57 (60.0) |
| Smoked in year before pregnancy | 31 (20.0) | 52 (27.8) | 27 (28.4) |
| Smoked, but not in year before pregnancy | 18 (11.6) | 24 (12.8) | 7 (7.3) |
| Household income | |||
| < $25,000 | 11 (7.1) | 20 (10.7) | 15 (15.8) |
| $25,000 - $49,000 | 27 (17.4) | 43 (23.0) | 18 (18.9) |
| $50,000 - $99,000 | 57 (36.8) | 53 (28.3) | 28 (29.5) |
| >= $100,000 | 40 (25.8) | 40 (21.4) | 24 (25.3) |
| Father’s Education | |||
| Less than high school | 7 (4.5) | 13 (7.0) | 11 (11.6) |
| High school | 20 (12.9) | 31 (16.6) | 19 (20.0) |
| Post high school training or some college | 24 (15.5) | 39 (20.9) | 14 (14.7) |
| College graduate | 53 (34.2) | 63 (33.7) | 31 (32.6) |
| Graduate level or professional school | 39 (25.2) | 21 (11.2) | 16 (16.8) |
1
Due to missing data, not all columns add to 100%