Table 2.
Subsample baseline characteristics
| Characteristic | Overall (n = 482) |
Non-Nicotine exposed (n = 244) |
Nicotine- exposed (n = 238) |
p-value |
|---|---|---|---|---|
| n (%) | n (%) | n (%) | ||
| Hypoglycemia | 0.139 | |||
| Absent | 342 (71%) | 181 (74%) | 161 (68%) | |
| Present | 140 (29%) | 63 (26%) | 77 (32%) | |
| Sex | 0.844 | |||
| Female | 254 (53%) | 127 (52%) | 127 (53%) | |
| Male | 228 (47%) | 117 (48%) | 111 (47%) | |
| Race/Ethnicity | <0.001 | |||
| African American | 153 (32%) | 49 (20%) | 104 (44%) | |
| Asian American | 9 (1.9%) | 6 (2.5%) | 3 (1.3%) | |
| Caucasian | 74 (15%) | 55 (23%) | 19 (8.0%) | |
| Hispanic | 82 (17%) | 54 (22%) | 28 (12%) | |
| Missing | 164 (34%) | 80 (33%) | 84 (35%) | |
| Intrauterine Growth Restriction (IUGR) | 0 (0%) | 0 (0%) | 0 (0%) | N/A |
| Small for Gestational Age (SGA) | 0 (0%) | 0 (0%) | 0 (0%) | N/A |
| Maternal History of Diabetes | 0 (0%) | 0 (0%) | 0 (0%) | N/A |
| Mean (SD) | Mean (SD) | Mean (SD) | ||
| Gestational Age at Birth (Weeks) | 33.49 (4.67) | 33.61 (4.65) | 33.37 (4.70) | 0.530 |
| Gestational Age at Birth (Days) | 2.69 (2.06) | 2.73 (2.07) | 2.65 (2.05) | 0.664 |
| Weight (grams) | 2,250.27 (920.51) | 2,265.98 (905.79) | 2,234.17 (936.99) | 0.698 |
| Length (cm) | 44.96 (26.30) | 46.41 (36.31) | 43.46 (6.93) | 0.250 |
| Head circumference (cm) | 36.85 (77.37) | 39.00 (88.50) | 34.63 (63.97) | 0.166 |
*
Mean ± standard deviation (SD). Subsample analysis excluded three independent hypoglycemia risk factors (IUGR, SGA, and neonates born to diabetic mothers).