Table 2 Demographic distribution of malformed cases and non-malformed controls, California 1990-1999
Variable | Spina Bifida | |
|---|---|---|
Cases n = 297 (%1) | Controls n = 300 (%1) | |
Maternal Race/Ethnicity | ||
White, non-Hispanic | 59 (19.9) | 96 (32.0) |
Hispanic, Native Born | 33 (11.1) | 33 (11.0) |
Hispanic, Foreign Born | 166 (55.9) | 115 (38.3) |
Black | 17 (5.7) | 20 (6.7) |
Asian | 9 (3.0) | 25 (8.3) |
Other | 9 (3.0) | 11 (3.7) |
Maternal age at delivery (years) | ||
13-24 | 128 (43.1) | 123 (41.0) |
25-29 | 80 (26.9) | 71 (23.7) |
30-34 | 47 (15.8) | 64 (21.3) |
35-55 | 39 (13.1) | 42 (14.0) |
Maternal education | ||
Less than high school | 158 (53.2) | 110 (36.7) |
High School | 65 (21.9) | 81 (27.0) |
Greater than High school | 71 (23.9) | 109 (36.3) |
Parity | ||
0 | 120 (40.4) | 114 (38.0) |
1 | 88 (29.6) | 101 (33.7) |
≥ 2 | 86 (29.0) | 84 (28.0) |
Plurality | ||
Singleton | 287 (96.6) | 293 (97.7) |
Multiple births | 8 (2.7) | 7 (2.3) |
Infant Sex | ||
Male | 146 (49.2) | 149 (49.7) |
Female | 151 (50.8) | 151 (50.3) |