Table 3.
Characteristics of participants classified as sarcopenic by any definition
| Any sarcopenia definition | |||
|---|---|---|---|
| None | Sarcopenic | p-value | |
| N (%) | 421 (89.4) | 50 (10.6) | |
| Age | 62.6 ± 7.5 | 66.9 ± 7.1 | < 0.001 |
| Weight (kg) | 68.2 ± 12.0 | 61.2 ± 13.4 | < 0.001 |
| Height (cm) | 162.4 ± 6.5 | 155.5 ± 6.1 | < 0.001 |
| BMI (kg/m2) | 25.9 ± 4.5 | 25.3 ± 5.2 | 0.41 |
| ALM (kg) | 17.6 ± 2.5 | 14.4 ± 2.0 | NR |
| ALMI (kg/m2) | 6.7 ± 0.9 | 6.0 ± 0.8 | NR |
| ALM/BMI | 0.69 ± 0.10 | 0.58 ± 0.08 | NR |
| Grip strength (kg) | 25.6 ± 5.1 | 15.8 ± 2.4 | NR |
| Salivary cortisol (nmol/l)* | |||
| Awakening | |||
| Bivariate | 18.6 ± 8.9 | 18.6 ± 9.9 | 0.98 |
| Multivariable | 18.6 ± 0.5 | 18.5 ± 1.4 | 0.88 |
| + 30 min | |||
| Bivariate | 27.3 ± 12.0 | 27.0 ± 12.2 | 0.95 |
| Multivariable | 27.3 ± 0.6 | 27.2 ± 1.9 | 0.89 |
| 11 AM | |||
| Bivariate | 9.0 ± 4.5 | 11.5 ± 5.6 | 0.003 |
| Multivariable | 9.1 ± 0.2 | 11.2 ± 0.7 | 0.01 |
| 8 PM | |||
| Bivariate | 3.2 ± 1.9 | 4.1 ± 2.5 | 0.01 |
| Multivariable | 3.2 ± 0.1 | 4.1 ± 0.3 | 0.03 |
| AUC | |||
| Bivariate | 3964 ± 1440 | 4763 ± 1549 | 0.002 |
| Multivariable | 3974 ± 77 | 4670 ± 235 | 0.008 |
Results are expressed as mean ± standard deviation (Bivariate) or as age and body mass index-adjusted mean ± standard error (Multivariate). Between-group comparisons performed using student’s t-test or *analysis of variance
N number, BMI body mass index, ALM appendicular lean mass, ALMI ALM index (ALM/height2), NR not relevant (included in the definition of sarcopenia), AUC salivary cortisol diurnal Area Under the Curve value
*p values were calculated on Log-transformed values