Table 1.
Characteristics of the study population by obesity statusa (n=74)
| Characteristics | Normal (n=16) | Overweight (n=28) | Obese (n=30) | P |
|---|---|---|---|---|
| BMI (kg/m2) | 23.8 ± 0.8 | 27.5 ± 1.4 | 36.0 ± 4.4 | <0.01 |
| Age (year) | 31.0 ± 13.7 | 31.9 ± 14.0 | 41.6 ± 13.0 | <0.01 |
| Race | ||||
| Non-Hispanic white | 13 (81) | 18 (64) | 18 (60) | 0.43 |
| Non-Hispanic black | 0 | 3 (11) | 5 (17) | |
| Hispanic | 3 (19) | 7 (25) | 5 (17) | |
| Other | 0 | 0 | 2 (7) | |
| Menopausal status | ||||
| Premenopausal | 13 (87) | 25 (93) | 15 (52) | <0.01 |
| Postmenopausal | 2 (13) | 2 (7) | 14 (48) | |
| Parity | ||||
| Yes | 7 (44) | 16 (57) | 17 (57) | 0.66 |
| No | 9 (56) | 12 (43) | 13 (43) | |
| Breastfeeding | ||||
| Yes | 10 (63) | 13 (46) | 16 (53) | 0.63 |
| No | 6 (38) | 15 (54) | 14 (47) | |
| Smoking | ||||
| Never | 12 (75) | 20 (71) | 14 (47) | 0.05 |
| Past | 2 (13) | 8 (29) | 11 (37) | |
| Current | 2 (13) | 0 | 5 (17) | |
| Family historyb | ||||
| Yes | 0 | 2 (7) | 2 (7) | 0.68 |
| No | 15 (100) | 26 (93) | 28 (93) | |
| Oral contraceptive use | ||||
| Never | 5 (31) | 6 (21) | 9 (30) | 0.02 |
| Past | 4 (25) | 17 (61) | 19 (63) | |
| Current | 7 (44) | 5 (18) | 2 (7) |
a
The numbers are mean ± SE and n(%). P-values were calculated by ANOVA for continuous variables and Fisher’s exact test for categorical variables. Normal-weight was defined as BMI<25 kg/m2, overweight as 25 kg/m2≤BMI<30 kg/m2, and obese as BMI≥30 kg/m2.
b
First-degree relatives.