Table 2.
Participant characteristics among white men
| Characteristic [mean (SD) or N(%)] | All cohorts (n = 9170) | Health ABC (n = 908) | MrOS US (n = 5064) | MrOS Sweden (n = 2851) | HCS (n = 157) | SarcoPhAge (n = 190) |
|---|---|---|---|---|---|---|
| Age (years) | 74.3 (4.9) | 74.4 (2.9) | 73.8 (5.9) | 74.9 (3.1) | 75.3 (2.5) | 73.6 (6.1) |
| Height (cm) | 174.4 (6.6) | 173.4 (6.2) | 174.5 (6.6) | 174.8 (6.5) | 173.9 (6.2) | 171.8 (6.3) |
| Weight (kg) | 82.3 (12.6) | 81.2 (12.3) | 83.5 (12.9) | 80.5 (11.8) | 82.3 (11.7) | 81.4 (15.0) |
| BMI (kg/m2) | 27.0 (3.7) | 27.0 (3.7) | 27.4 (3.8) | 26.3 (3.5) | 27.2 (3.6) | 27.5 (4.6) |
| ALM (kg) | 24.2 (3.3) | 23.2 (3.2) | 24.3 (3.4) | 24.2 (3.2) | 24.3 (2.7) | 23.4 (3.8) |
| ALM index (kg/m2) | 7.9 (0.9) | 7.7 (0.9) | 8.0 (0.9) | 7.9 (0.8) | 8.0 (0.7) | 7.9 (1.1) |
| Grip strength (kg) | 41.7 (8.3) | 39.5 (7.7) | 41.6 (8.5) | 43.0 (7.8) | 37.2 (7.2) | 39.0 (9.5) |
| Gait speed (m/s) | 1.27 (0.25) | 1.29 (0.23) | 1.25 (0.23) | 1.32 (0.25) | 0.82 (0.18) | 1.05 (0.29) |
| Original sarcopenia definitions | ||||||
| EWGSOP2 | 105 (1.1%) | 14 (1.5%) | 69 (1.4%) | 13 (0.5%) | 0 (0.0%) | 9 (4.7%) |
| SDOC | 152 (1.7%) | 3 (0.3%) | 79 (1.6%) | 28 (1.0%) | 24 (15.3%) | 18 (9.5%) |
| Modified sarcopenia definitions | ||||||
| EWGSOP2 | 505 (5.5%) | 73 (8.0%) | 282 (5.6%) | 123 (4.3%) | 5 (3.2%) | 22 (11.6%) |
| SDOC | 487 (5.3%) | 28 (3.1%) | 283 (5.6%) | 88 (3.1%) | 52 (33.1%) | 36 (18.9%) |
| Died during follow‐up | 5929 (64.7%) | 627 (69.1%) | 3255 (64.3%) | 1973 (69.2%) | 28 (17.8%) | 46 (24.2%) |
| Follow‐up time (years) | 12.1 (5.5) | 11.6 (4.9) | 13.0 (5.7) | 11.4 (4.8) | 6.4 (1.2) | 4.4 (1.1) |
ALM, appendicular lean mass; EWGSOP2, 2019 European Working Group on Sarcopenia in Older People; HCS, Hertfordshire Cohort Study; Health ABC, Health, Aging and Body Composition Study; MrOS, Osteoporotic Fractures in Men Study; SarcoPhAge, Sarcopenia and Physical impairment with advancing Age Study; SDOC, Sarcopenia Definitions and Outcomes Consortium.
Thresholds for original and modified definitions are presented in Table 1.