Table 1 Distribution of Selected Subject Characteristics by Exposure Statusa
Characteristic | Any PCE and any prenatal alcohol exposure (N = 302) | Any PCE and no prenatal alcohol exposure (N = 361) | No PCE and any prenatal alcohol exposure (N = 201) | No PCE and no prenatal alcohol exposure (N = 242) | ||||
|---|---|---|---|---|---|---|---|---|
| Â | n | % | n | % | n | % | n | % |
Year of birth | ||||||||
 1969–1974 | 64 | 21.2 | 66 | 18.3 | 57 | 28.4 | 52 | 21.5 |
 1975–1980 | 163 | 54.0 | 174 | 48.2 | 105 | 52.2 | 124 | 51.2 |
 1981–1983 | 75 | 24.8 | 121 | 33.5 | 39 | 19.4 | 66 | 27.3 |
Current age(n, mean, sd) | 302 | 29.3(3.5) | 361 | 28.8(3.7) | 201 | 30.1(3.9) | 242 | 29.3(3.7) |
Gender | ||||||||
 Male | 135 | 44.7 | 140 | 38.8 | 89 | 44.3 | 87 | 36.0 |
 Female | 167 | 55.3 | 221 | 61.2 | 112 | 55.7 | 155 | 64.0 |
% White race | 298 | 98.7 | 353 | 97.8 | 201 | 100.0 | 237 | 97.9 |
Current Educational Level | ||||||||
 High school graduate or less | 39 | 12.9 | 55 | 15.2 | 18 | 9.0 | 30 | 12.4 |
 Some college | 63 | 20.9 | 75 | 20.8 | 43 | 21.4 | 70 | 28.9 |
 Four year college grad or higher | 200 | 66.2 | 231 | 64.0 | 140 | 69.7 | 141 | 58.3 |
 Missing | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 1 | 0.4 |
Current marital status | ||||||||
 Single | 84 | 27.8 | 134 | 37.1 | 60 | 29.9 | 68 | 28.1 |
 Married or cohabitating | 211 | 69.9 | 220 | 60.9 | 134 | 66.7 | 166 | 68.6 |
 Other | 6 | 2.0 | 4 | 1.1 | 5 | 2.5 | 5 | 2.1 |
 Missing | 1 | 0.3 | 3 | 0.8 | 2 | 1.0 | 3 | 1.2 |
Mother’s age at subject’s birth (n, mean (sd)) | 302 | 27.9 (4.7) | 361 | 27.1 (4.5) | 201 | 28.0 (4.5) | 242 | 27.1 (4.3) |
Father’s age at subject’s birth (n, mean (sd)) | 302 | 30.8 (6.1) | 361 | 29.5 (5.3) | 201 | 30.7 (5.4) | 241 | 29.3 (4.7) |
Mother’s educational level at subject’s birth | ||||||||
 High school graduate or less | 64 | 21.2 | 91 | 25.2 | 28 | 13.9 | 51 | 21.1 |
 Some college | 80 | 26.5 | 135 | 37.4 | 66 | 32.8 | 94 | 38.8 |
 Four year college grad or higher | 156 | 51.7 | 131 | 36.3 | 105 | 52.2 | 96 | 39.7 |
 Missing | 2 | 0.7 | 4 | 1.1 | 2 | 1.0 | 1 | 0.4 |
Father’s occupation at subject’s birth | ||||||||
 White collar | 172 | 57.0 | 183 | 50.7 | 109 | 54.2 | 110 | 45.5 |
 Blue collar | 91 | 30.1 | 114 | 31.6 | 57 | 28.4 | 71 | 29.3 |
 Other | 37 | 12.3 | 58 | 16.1 | 32 | 15.9 | 58 | 24.0 |
 Missing | 2 | 0.7 | 6 | 1.7 | 3 | 1.5 | 3 | 1.2 |
Subject breast fed | ||||||||
 Yes | 194 | 64.2 | 209 | 57.9 | 133 | 66.2 | 165 | 68.2 |
 No | 102 | 33.8 | 148 | 41.0 | 62 | 30.8 | 77 | 31.8 |
 Missing | 6 | 2.0 | 4 | 1.1 | 6 | 3.0 | 0 | 0.0 |
Number of older siblings | ||||||||
 0 | 133 | 44.0 | 148 | 41.0 | 97 | 48.3 | 116 | 47.9 |
 1 | 94 | 31.1 | 142 | 39.3 | 59 | 29.4 | 78 | 32.2 |
 2+ | 75 | 24.8 | 71 | 19.7 | 45 | 22.4 | 48 | 19.8 |
Mother’s cigarette smoking during subject’s gestation | ||||||||
 11+ cigarettes a day | 62 | 20.5 | 46 | 12.7 | 33 | 16.4 | 26 | 10.7 |
 10 or fewer cigarettes a day | 44 | 14.6 | 30 | 8.3 | 34 | 16.9 | 20 | 8.3 |
 None | 195 | 64.6 | 285 | 78.9 | 134 | 66.7 | 196 | 81.0 |
 Missing | 1 | 0.3 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
Mother’s alcohol consumption during subject’s gestation | ||||||||
 1+ drinks a week | 109 | 36.1 | – | – | 76 | 37.8 | – | – |
 1–3 drinks a month | 193 | 63.9 | – | – | 125 | 62.2 | – | – |
 None | – | – | 361 | 100.0 | – | – | 242 | 100.0 |
 Missing |  |  |  |  |  |  |  |  |
Mother’s use of marijuana during subject’s gestation | ||||||||
 Yes | 20 | 6.6 | 5 | 1.4 | 15 | 7.5 | 3 | 1.2 |
 No | 281 | 93.0 | 356 | 98.6 | 182 | 90.5 | 238 | 98.3 |
 Missing | 1 | 0.3 | 0 | 0.0 | 4 | 2.0 | 1 | 0.4 |