Table IV.
Predictors of SGA for Birth Weight, Length, and OFC
| Predictors | SGA for weight | SGA for length | SGA for OFC | |||
|---|---|---|---|---|---|---|
| OR§ | 95% CI | OR§ | 95% CI | OR§ | 95% CI | |
| Drug use: | ||||||
| Abstinent controls | 1.0 | -- | 1.0 | -- | 1.0 | -- |
| Exclusive opioid users | 3.9 | 1.3; 11.9 | 2.4 | 0.7; 8.5 | 2.8 | 1.0; 8.1 |
| Polydrug users | 3.7 | 1.4; 9.4 | 1.2 | 0.4; 3.8 | 4.7 | 2.0; 10.8 |
| Maternal age (years) | 1.0 | 1.0; 1.1 | 1.0 | 1.0; 1.1 | 1.0 | 1.0; 1.1 |
| Smoking status: | ||||||
| Non-smokers | 1.0 | -- | 1.0 | -- | 1.0 | -- |
| Any smoking in pregnancy | 2.3 | 0.9; 5.7 | 2.8 | 0.9; 8.3 | 1.2 | 0.5; 2.3 |
| Maternal education: | ||||||
| Less than high school | 1.0 | -- | 1.0 | -- | 1.0 | -- |
| High school of GED | 1.5 | 0.7; 3.3 | 1.0 | 0.4; 2.3 | 0.6 | 0.3; 1.1 |
| Vocational, college of higher | 2.4 | 1.1; 5.0 | 1.0 | 0.4; 2.4 | 0.9 | 0.5; 1.7 |
| Alcohol use around LMP‡ | ||||||
| No | 1.0 | -- | 1.0 | -- | 1.0 | -- |
| Yes | 0.8 | 0.4; 1.5 | 1.0 | 0.5; 2.0 | 0.8 | 0.5; 1.5 |
SGA, small for gestational age (<10th percentile)
OFC, occipital-frontal circumference
LMP, last menstrual period
§
All ORs are adjusted for all variables in the table
‡
At least one binge drinking episode (≥4 drinks/occasion) a month around LMP