Table 2.
Crude and Adjusted Odds Ratios and 95% Confidence Intervals for the Association between Diabetes and Spina Bifida, Slone Birth Defects Study, 1976–2011
| Cases (n=1154) |
Controls (n=9439) |
cOR (95% CI) | aORa (95% CI) | |||
|---|---|---|---|---|---|---|
| Diabetes | n | % | n | % | ||
| Pre-existing | 8 | 0.69% | 42 | 0.44% | 1.56 (0.73, 3.32) | 1.84 (0.80, 4.22) |
| Gestational | 39 | 3.38% | 371 | 3.93% | 0.86 (0.61, 1.20) | 1.19 (0.84, 1.71) |
| None | 1107 | 95.93% | 9026 | 95.62% | 1.0 (ref) | 1.0 (ref) |
aOR: adjusted odds ratio; CI: confidence interval; cOR: crude odds ratio
a
Adjusted for maternal age, education, race/ethnicity, folic acid intake, and study center