Table 1.
Demographic characteristics by race/ethnicity in SWAN Fat Patterning Study
| Total cohort | African American | White | |
|---|---|---|---|
| N | 369 | 166 | 203 |
| Age, mean (s.d.) | 50.7 (3.9) | 50.6 (3.7) | 50.9 (4.1) |
| Intra-abdominal fat (cm2), mean (s.d.) | 95.3 (53.1) | 96.8 (58.5) | 93.6 (45.8) |
| SAF (cm2), mean (s.d.) | 392.4 (162.7) | 440.3 (168.5) | 353.2 (147.1)*** |
| Total body fat mass, mean (s.d.) | 33,381.6 (13,008.2) | 36,950.4 (13,314.6) | 30,533.7 (12,052.3)*** |
| Total percent fat, mean (s.d.) | 43.3 (8.5) | 45.1 (8) | 41.8 (8.7)*** |
| Physical activity scorea, mean (s.d.) | 7.8 (1.6) | 7.3 (1.6) | 8.1 (1.6)*** |
| SHBG (nmol/l)b, mean (s.d.) | 54.2 (31.3) | 54.6 (31.2) | 53.9 (31.5) |
| CES-D score, mean (s.d.) | 6.9 (7.3) | 7.7 (7.8) | 6.2 (6.8)* |
| CES-D ≥16, N (%) | 47 (13.4) | 28 (18.1) | 19 (9.6)* |
| Current smoker, N (%) | 77 (20.9) | 40 (24.1) | 37 (18.2) |
| Education, N (%) | |||
| Less than an HS diploma | 7 (1.9) | 4 (2.4) | 3 (1.5)** |
| HS diploma | 36 (9.8) | 17 (10.2) | 19 (9.3) |
| Some college | 100 (27.1) | 60 (36.2) | 40 (19.7) |
| College degree | 90 (24.4) | 34 (20.5) | 56 (27.6) |
| Graduate school | 136 (36.8) | 51 (30.7) | 85 (41.9) |
| Parity, N (%) | |||
| 0 | 52 (14.1) | 21 (12.7) | 31 (15.3)* |
| 1–2 Children | 168 (45.5) | 89 (53.6) | 79 (38.9) |
| >2 Children | 149 (40.4) | 56 (33.7) | 93 (45.8) |
| Menopausal statusc, N (%) | |||
| Premenopausal | 47 (12.7) | 16 (9.6) | 31 (15.3) |
| Early perimenopausal | 135 (36.6) | 66 (39.7) | 69 (34.0) |
| Late perimenopausal | 35 (9.5) | 14 (8.5) | 21(10.3) |
| Postmenopausal | 152 (41.2) | 70 (42.2) | 82 (40.4) |
| Waist circumference (cm), mean (s.d.) | 89.9 (13.6) | 92.5 (13.4) | 87.8 (13.4)*** |
| BMI (kg/cm2), mean (s.d.) | 29.1 (6.2) | 31 (6.5) | 27.6 (5.6)*** |
| Weight categories, N (%) | |||
| Normal weight (BMI< 25 kg/cm2) | 104 (28.3) | 35 (21.3) | 69 (33.9)*** |
| Overweight (BMI 25 to <30 kg/cm2) | 122 (33.3) | 48 (29.2) | 74 (36.5) |
| Obese (BMI ≥30 kg/ cm2) | 141 (38.4) | 81 (49.5) | 60 (29.6) |
CES-D, Center for Epidemiological Study-Depression scale; HS, high school; PA, physical activity; SHBG, sex hormone–binding globulin; SWAN, Study of Women’s Health Across the Nation.
a
Range of PA score 3.5–12.5.
b
Range for SHBG 6.8–229.9 nmol/l.
c
SWAN used bleeding patterns to categorize menopausal status: premenopausal (no bleeding irregularity in past 3 months), early perimenopausal (less predictable menses in last 3 months), late perimenopausal (no menstrual bleeding for at least 3 months but not >12 months), and postmenopausal (no menstrual bleeding for at least 12 months).
*
P <0.05;
**
P < 0.01;
***
P < 0.001.