Table 3.
Railroad track ears | n, % | Unadjusted RR | Adjusted RR1 |
---|---|---|---|
19 (7.5) | reference | reference | |
Decrease (B, D) | 12 (9.8) | 1.30 (0.65, 2.60) | 1.18 (0.48, 2.86) |
Sustained (C, E) | 7 (18.0) | 2.39 (0.18, 5.31) | 2.06 (0.85, 4.96) |
Heart defect | |||
None (A) | 5 (1.9) | reference | reference |
Decrease (B, D) | 6 (4.9) | 2.46 (0.77, 7.93) | 1.22 (0.31, 4.90) |
Sustained (C, E) | 7 (18.0) | 9.08 (3.03, 27.02) | 5.29 (1.39, 20.06) |
Models adjusted with propensity scores for maternal prenatal vitamin use, age, socioeconomic status, pregnancy smoking, and infant age at dysmorphology exam. Inverse probability censoring weights applied for all models to account for loss to follow up.