Table I.
Maternal characteristics associated with women with GDM who were treated with either subcutaneous insulin or glyburide.
| Insulin injections (%), (n = 8609) |
Glyburide (%), (n = 2073) |
p value | |
|---|---|---|---|
| Parity | |||
| Nulliparas (n = 2037) | 77.5 | 22.5 | p < 0.001 |
| Multiparas (n = 8167) | 81.5 | 18.5 | |
| Age | |||
| Maternal age < 19 (n = 104) | 82.7 | 17.3 | p < 0.001 |
| Maternal age 20–34 (n = 5676) | 79.1 | 20.9 | |
| Maternal age >35 (n = 4484) | 82.5 | 17.5 | |
| Race/Ethnicity | |||
| White (n = 2278) | 81.9 | 18.1 | p < 0.001 |
| African American (n = 385) | 77.7 | 22.3 | |
| Latina/Hispanic (n = 5450) | 81.1 | 18.9 | |
| Asian (n = 1616) | 75.1 | 24.9 | |
| Other (n = 488) | 83.2 | 16.8 | |
| Body mass index (kg/m2) | |||
| <19.8 (n = 48) | 75 | 25 | p < 0.001 |
| 19.8–26.0 (n = 1774) | 77.3 | 22.7 | |
| 26.1–29.0 (n = 2719) | 79.3 | 20.7 | |
| >29.0 (n = 5475) | 82.2 | 17.8 | |
| Gestational age at GDM diagnosis | |||
| < 20 weeks (n = 1004) | 80.3 | 19.7 | p = 0.001 |
| 20–32 weeks (n = 3985) | 78.7 | 21.3 | |
| ≥33 weeks (n = 147) | 82.9 | 17.1 | |
| Education (years) | |||
| 0–8 years (<high school; n = 1619) | 80 | 20 | p < 0.001 |
| 9–12 years (high school; n = 4934) | 77.8 | 22.2 | |
| >12 years (college and above; n = 2964) | 83.4 | 16.6 | |
| Primary language | |||
| English (n = 5594) | 82.9 | 17.2 | p < 0.001 |
| Spanish (n = 3848) | 79.6 | 20.4 | |
| Other (n = 1056) | 73.9 | 26.1 | |