Table 1.
Sociodemographic and clinical characteristics of postmenopausal African-American women according to level of CRF.
| Characteristic | VLCRF < 18 mL·kg−1 ·min−1 (n = 58) |
LCRF 18.0 – 22.0 mL·kg−1 ·min−1 (n = 56) |
MCRF > 22.0 mL·kg−1 ·min−1 (n = 56) |
|---|---|---|---|
| Age, mean (SD) | 55.2 (6.1) | 55.1 (5.5) | 54.3 (5.4) |
| Marital status, n (%) | |||
| Single/never married | 24 (41.4) | 19 (33.9) | 21 (37.5) |
| Married/partner | 15 (25.9) | 13 (23.2) | 14 (25.0) |
| Divorced/separated/widowed | 19 (32.8) | 24 (42.9) | 21 (37.5) |
| Annual income, n (%) | |||
| $35,000 or less | 37 (63.8) | 29 (51.8) | 29 (51.8) |
| $35,000 to $49,999 | 17 (29.3) | 21 (37.5) | 13 (23.2) |
| $50,000 or more | 4 (6.9) | 5 (8.9) | 12 (21.4) |
| Education, n (%) | |||
| < High school graduate | 5 (8.6) | 8 (14.3) | 6 (10.7) |
| High school graduate | 34 (58.6) | 26 (46.4) | 31 (55.4) |
| ≥ College graduate | 19 (32.8) | 22 (39.3) | 19 (33.9) |
| Smoking, n (%) | |||
| Current | 14 (24.1) | 6 (10.7) | 15 (26.8) |
| Former | 20 (34.5) | 19 (33.9) | 15 (26.8) |
| Never | 24 (41.4) | 31 (55.4) | 26 (46.4) |
| Clinical variables | |||
| BMI (kg/m2), mean (SD) | 39.2 (7.4) | 36.9 (6.5) | 34.6 (6.3)c |
| 25 – 29.9 kg/m2 | 5 (8.6) | 8 (14.3) | 11 (19.6) |
| 30 – 34.9 kg/m2 | 15 (25.9) | 14 (25.0) | 27 (48.2) |
| 35 – 39.9 kg/m2 | 12 (20.7) | 18 (32.1) | 4 (7.1) |
| ≥ 40 kg/m2 | 26 (44.8) | 16 (28.6) | 14 (25.0) |
| Body Weight (kg), mean (SD) | 105.1 (20.8) | 100.9 (19.8) | 95.3 (18.6)c |
| Fat free mass (kg), mean (SD) | |||
| Total body | 52.1 (8.8) | 51.5 (7.6) | 48.8 (7.1)c |
| Legs | 16.4 (2.9) | 17.0 (2.6) | 16.2 (2.7) |
| Body fat %, mean (SD) | 48.9 (5.1) | 47.0 (4.1) | 45.3 (5.7)c |
Note: VLCRF = Very Low CRF; LCRF = Low CRF; MCRF = Medium CRF
a
Statistically significant between VLCRF vs. LCRF, P < .05
b
Statistically significant between LCRF vs. MCRF, P < .05
c
Statistically significant between VLCRF vs. MCRF, P < .05