Table 1.
Subject characteristics (N=215)
| Age, M (SD) | 53.9 (3.8) |
| Race/ethnicity, N (%) | |
| White | 152 (70.7) |
| Black | 55 (25.6) |
| Asian/Hispanic/mixed | 8 (3.7) |
| Menopause stage, N (%) | |
| Perimenopausal | 34 (15.8) |
| Postmenopausal | 181 (84.2) |
| Education, N (%) | |
| High school/some college/vocational | 100 (46.5) |
| College graduate | 57 (26.5) |
| > College | 58 (27.0) |
| BMI, M (SD) | 28.8 (6.6) |
| SBP, M (SD) | 120.1 (13.9) |
| DBP, M (SD) | 71.1 (8.9) |
| CESD, M (SD) | 8.0 (7.8) |
| Self-rated health, N (%) | |
| Good/fair/poor | 68 (31.6) |
| Very good | 93 (43.3) |
| Excellent | 54 (25.1) |
| RSA, Median (IQR) | |
| Total | 36.9 (26.5, 48.1) |
| Wake | 32.4 (24.6, 42.5) |
| Sleep | 44.0 (34.2, 60.9) |
| Heart rate, beats/min, M (SD) | |
| Total | 77.4 (10.1) |
| Wake | 81.9 (10.2) |
| Sleep | 67.6 (9.4) |
| Respiration rate, breaths/min, M (SD) | |
| Total | 16.3 (1.7) |
| Wake | 17.0 (1.6) |
| Sleep | 14.8 (2.2) |
| Physiologic hot flashes, number/woman Median (IQR) | |
| Total | 10 (4–16) |
| Wake† | 7 (3–12) |
| Sleep§ | 3 (1–4) |
| Self-reported hot flashes, number/woman Median (IQR) | |
| Total | 3 (0–7) |
| Wake† | 2 (0–6) |
| Sleep§ | 0 (0–1) |
†
Number of hot flashes/monitoring time standardized to 17 hour waking period;
§
Number of hot flashes/monitoring time standardized to 7 hour sleep period