Table 1. Main characteristics of 143 women with GDM in the third trimester of pregnancy.
| Variable | Normal weight BMI 18.5–24.9 Kg/m2 (n = 67) | Overweight group BMI≥25 Kg/m2 (n = 76) | P value |
| Age, years | 32.2±6.6 | 33.4±5.0 | 0.219* |
| Gestational age, weeks | 32.8±3.4 | 32.5±3.2 | 0.588* |
| Prepregnancy BMI, Kg/m2 | 22.4±2.4 | 31.1±3.9 | 0.0001* |
| Time since diagnosis of GDM, weeks | 8.9±4.5 | 9.6±4.8 | 0.372* |
| Marital Status | |||
| Married** | 63 (94.0) | 71 (93.4) | |
| Single or divorced | 4 (6.0) | 5 (6.6) | 0.100+ |
| Religion | |||
| Catholic | 33 (49.3) | 46 (60.5) | |
| Protestant | 23 (34.3) | 18 (23.7) | |
| Other/none | 11 (16.4) | 12 (15.8) | 0.327+ |
| Education, years | |||
| <9 | 11 (16.4) | 18 (23.7) | |
| 9 to 12 | 46 (68.7) | 50 (65.8) | |
| >12 | 10 (14.9) | 8 (10.5) | 0.468+ |
| Race | |||
| White | 20 (29.9) | 34 (44.8) | |
| Black | 9 (13.4) | 11 (14.5) | |
| Mixed | 38 (56.7) | 31 (40.1) | 0.136+ |
| Employment | |||
| Housewife | 18 (26.9) | 28 (36.8) | |
| Employed | 49 (73.1) | 48 (63.2) | 0.203+ |
| Family income± (minimum wage per month) | |||
| <3 | 2 (3.0) | 3 (3.9) | |
| 1 a 3 | 43 (64.2) | 42 (55.3) | |
| >3 | 22 (32.8) | 31 (40.1) | 0.555+ |
| Parity | |||
| 0 | 25 (37.3) | 18 (23.7) | |
| 1 | 20 (29.9) | 30 (39.4) | |
| 2 or more | 22 (32.8) | 28 (36.8) | 0.192+ |
| Unplanned pregnancy | 46 (68.7) | 56 (73.4) | 0.633+ |
| Currently using insulin | 14 (20.9) | 18 (23.7) | 0.843+ |
**Or common law marriage.
*Student's t-test.
+
Chi-square test.
±
One minimum wage represents approximately US$302,67.
Values presented as N (%) or mean (Standard Deviation [SD]).
GDM = gestational diabetes mellitus.