Table 1. Characteristics of obese pregnant women at ≤ 20 weeks of gestation.
| Metformin (n = 82) |
Control (n = 82) |
p value | |
|---|---|---|---|
| Age (years) | |||
| Mean (SD) | 28.8 (6.0) | 29.7 (6.3) | 0.36† |
| Range | 18.0–40.0 | 19.0–44.0 | |
| Marital status | |||
| Married | 63 (76.8) | 66 (80.5) | 0.56‡ |
| Single | 19 (23.2) | 16 (19.5) | |
| Occupation | |||
| Working | 82 (100) | 82 (100) | – |
| Not working | 0 (0.0) | 0 (0.0) | |
| Education level | |||
| Elementary school | 27 (32.9) | 25 (30.5) | 0.89‡ |
| High school | 42 (51.2) | 45 (54.9) | |
| Higher education | 13 (15.9) | 12 (14.6) | |
| Ethnicity | |||
| White | 67 (81.7) | 65 (79.3) | 0.86‡ |
| Black | 8 (9.8) | 8 (9.8) | |
| Others | 7 (8.5) | 9 (11.0) | |
| Number of pregnancies | |||
| Mean (SD) | 2.3 (1.3) | 2.6 (1.5) | 0.09† |
| Range | 1.0–6.0 | 1.0–8.0 | |
| GA (first visit) | |||
| Mean (SD) | 15.1 (4.2) | 17.1 (4.6) | < 0.01† |
| Range | 5.0–24.0 | 6.0–26.0 | |
| Fasting glucose (mg/dL) | |||
| Mean (SD) | 79.3 (9.5) | 80.4 (10.2) | 0.47† |
| Range | 52.0–99.0 | 63.0–120.0 | |
| BMI (kg/m2) | |||
| Mean (SD) | 37.5 (4.7) | 37.5 (5.0) | 0.99† |
| Range | 25.3–50.8 | 25.3–49.5 | |
Abbreviations: BMI, body mass index; GA, gestational age; SD, standard deviation.
†
Student t test.
‡
Chi-square test.