Table 1.
Characteristics of participants at follow-up visit 15 (2015–2016) overall and by race/ethnicity in the SWAN
| Characteristic | Overall, N = 1,126 |
Race/ethnicity | P-value | ||||
|---|---|---|---|---|---|---|---|
| White, N = 523 |
Black, N = 286 |
Chinese, N = 143 |
Japanese, N = 126 |
Hispanic, N = 48 |
|||
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||
| Age (years) | 65.4 (2.6) | 65.4 (2.6) | 65.2 (2.6) | 65.7 (2.5) | 65.6 (2.7) | 66.1 (2.8) | 0.160a |
| BMI (kg/m2) | 28.7 (6.9) | 28.8 (6.4)2,3,4,5 | 32.8 (7.0)1,3,4 | 23.8 (3.7)1,2,5 | 23.5 (4.2)1,2,5 | 32.3 (6.6)1,3,4 | <0.001a |
| Days actigraphy | 7.9 (0.9) | 8.0 (0.9)3,4 | 8.0 (0.7)3,4 | 8.3 (0.8)1,2,4,5 | 7.2 (0.5)1,2,3,5 | 7.7 (1.2)3,4 | <0.001a |
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | ||
| Site | <0.001b | ||||||
| Michigan | 167 (14.8) | 73 (14.0) | 94 (32.9) | – | – | – | |
| Boston | 146 (13.0) | 95 (18.2) | 51 (17.8) | – | – | – | |
| Chicago | 147 (13.1) | 73 (14.0) | 74 (25.9) | – | – | – | |
| Davis | 204 (18.1) | 61 (11.7) | – | 143 (100.0) | – | – | |
| Los Angeles | 195 (17.3) | 69 (13.2) | – | – | 126 (100.0) | – | |
| New Jersey | 75 (6.7) | 27 (5.2) | – | – | – | 48 (100.0) | |
| Pittsburgh | 192 (17.1) | 125 (23.9) | 67 (23.4) | – | – | – | |
| Education level | <0.001b | ||||||
| Some high school | 51 (4.5) | 6 (1.1) | 9 (3.1) | 14 (9.8) | 0 (0.0) | 22 (45.8) | |
| High school | 169 (15.0) | 64 (12.2) | 57 (19.9) | 22 (15.4) | 19 (15.1) | 7 (14.6) | |
| Some college | 349 (31.0) | 143 (27.3) | 118 (41.3) | 29 (20.3) | 45 (35.7) | 14 (29.2) | |
| College | 256 (22.7) | 131 (25.0) | 44 (15.4) | 44 (30.8) | 34 (27.0) | 3 (6.2) | |
| Post-college | 301 (26.7) | 179 (34.2) | 58 (20.3) | 34 (23.8) | 28 (22.2) | 2 (4.2) | |
| Menopausal status | 0.002b | ||||||
| Natural post | 1,033 (91.8) | 487 (93.1) | 246 (86.3) | 135 (94.4) | 122 (96.8) | 43 (89.6) | |
| Surgical post | 92 (8.2) | 36 (6.9) | 39 (13.7) | 8 (5.6) | 4 (3.2) | 5 (10.4) | |
| Hormone user | 0.001b | ||||||
| No | 1,064 (94.5) | 480 (91.8) | 277 (96.9) | 142 (99.3) | 117 (92.9) | 48 (100.0) | |
| Yes | 62 (5.5) | 43 (8.2) | 9 (3.1) | 1 (0.7) | 9 (7.1) | 0 (0.0) | |
| Depressive symptoms (CES-D ≥ 16) | 0.234c | ||||||
| No | 1,004 (89.2) | 472 (90.2) | 254 (88.8) | 131 (91.6) | 106 (84.1) | 41 (85.4) | |
| Yes | 122 (10.8) | 51 (9.8) | 32 (11.2) | 12 (8.4) | 20 (15.9) | 7 (14.6) | |
| Comorbidities | <0.001c | ||||||
| 0 | 239 (21.2) | 124 (23.7) | 28 (9.8) | 48 (33.6) | 35 (27.8) | 4 (8.3) | |
| 1 | 280 (24.9) | 131 (25.0) | 66 (23.1) | 41 (28.7) | 34 (27.0) | 8 (16.7) | |
| ≥2 | 607 (53.9) | 268 (51.2) | 192 (67.1) | 54 (37.8) | 57 (45.2) | 36 (75.0) | |
| Testing language | <0.001b | ||||||
| English | 982 (87.2) | 523 (100.0) | 286 (100.0) | 92 (64.3) | 79 (62.7) | 2 (4.2) | |
| Non-English | 144 (12.8) | – | – | 51 (35.7) | 47 (37.3) | 46 (95.8) | |
CES-D = Center for Epidemiological Studies Depression Scale.
aANOVA.
bFisher’s exact test.
cChi-square test. Tukey’s HSD
1Different from white women.
2Different from black women.
3Different from Chinese women.
4Different from Japanese women.
5Different from Hispanic women.