Table 1.
Descriptive characteristics of participants.
| N | All | N | Men | N | Women | ||||
|---|---|---|---|---|---|---|---|---|---|
| Age (years) | 74 | 53.66 | (5.14) | 35 | 54.39 | (5.27) | 39 | 53.01 | (5.00) |
| Anthropometry and body composition | |||||||||
| Height (cm) | 74 | 167.8 | (9.81) | 35 | 175.8 | (6.48) | 39 | 160.7 | (6.10) * |
| Weight (kg) | 74 | 75.73 | (14.98) | 35 | 87.38 | (10.95) | 39 | 65.28 | (9.32) * |
| Body mass index (kg/m2) | 74 | 26.72 | (3.76) | 35 | 28.32 | (3.61) | 39 | 25.27 | (3.31) * |
| Fat mass index (kg/m2) | 74 | 10.75 | (3.13) | 35 | 10.03 | (3.23) | 39 | 11.39 | (2.93) |
| Lean mass index (kg/m2) | 74 | 15.21 | (2.88) | 35 | 17.49 | (2.02) | 39 | 13.17 | (1.80) * |
| Hormones | |||||||||
| DHEAS (μg/dL) | 73 | 109.8 | (66.95) | 34 | 135.1 | (66.45) | 39 | 87.74 | (59.87) * |
| Free testosterone (ng/dL) | 73 | 3.40 | (3.50) | 34 | 6.37 | (2.37) | 39 | 0.81 | (1.90) * |
| Total testosterone (ng/dL) | 73 | 182.0 | (182.6) | 34 | 342.1 | (128.8) | 39 | 42.44 | (76.66) * |
| SHBG (nmol/L) | 73 | 47.02 | (23.76) | 34 | 35.79 | (16.36) | 39 | 56.81 | (25.01) * |
| Somatotropin (ng/mL) | 73 | 1.44 | (2.54) | 34 | 0.60 | (1.77) | 39 | 2.17 | (2.88) * |
| Cortisol (μg/dL) | 73 | 12.86 | (4.18) | 34 | 13.43 | (4.49) | 39 | 12.36 | (3.87) |
| Sleep quantity and quality | |||||||||
| Global PSQI score | 67 | 5.61 | (3.47) | 31 | 4.77 | (3.15) | 36 | 6.33 | (3.62) |
| Total sleep time (min) | 71 | 359.9 | (48.85) | 34 | 337.9 | (46.30) | 37 | 380.1 | (42.44) * |
| Wake after sleep onset (min) | 71 | 63.90 | (27.44) | 34 | 65.80 | (32.45) | 37 | 62.15 | (22.19) |
| Sleep efficiency (%) | 71 | 85.01 | (6.29) | 34 | 83.88 | (7.53) | 37 | 86.06 | (4.75) |
Data are presented as mean (standard deviation). * Significant differences between sexes obtained from an independent samples t-test (p < 0.05). DHEAS: dehydroepiandrosterone sulphate; SHBG: sex hormone binding globulin; PSQI: Pittsburgh Sleep Quality Index.