|
Characteristics of eligible cohort members assigned exposures and those who were not assigned exposures. |
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| Covariate |
Subjects assigned exposure data N = 74,284 |
Subjects with no exposure data N = 14,849 |
|
|
|
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| Maternal age: Mean (SD) |
28.6 (5.2) |
28.0 (5.1) |
|
| Pre-pregnancy weight: Mean (SD) |
64.7 (13.7) |
66.5 (14.9) |
|
| Weight at delivery: Mean (SD) |
79.7 (13.9) |
81.0 (14.9) |
|
| Infant Gender |
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| Male |
51.0% |
50.6% |
|
| Female |
49.0% |
49.4% |
|
| Nulliparous |
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| Yes |
45.3% |
42.7% |
|
| No |
54.7% |
57.3% |
|
| Smoking at delivery |
|||
| Yes |
24.9% |
25.8% |
|
| No |
75.1% |
74.2% |
|
| Pregnancy complications |
|||
| Yes |
3.9 % |
4.1 % |
|
| No |
96.1 % |
95.9 % |
|
| Income Quintile |
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| 1 |
21.6% |
17.0% |
|
| 2 |
20.0% |
20.7% |
|
| 3 |
19.9% |
20.2% |
|
| 4 |
21.4% |
21.9% |
|
| 5 |
17.1% |
20.9% |
|
| Urban/Rural residence |
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| Urban |
74.7% |
70.6% |
|
| Rural |
25.3% |
29.4% |
|
Dugandzic et al. Environmental Health: A Global Access Science Source 2006 5:3 doi:10.1186/1476-069X-5-3 |
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