Table 3.
Age stratified adjusted hazard ratios (95% confidence interval) of all-cause mortality risk by baseline myosteatosis measuresa
| Model | Age group |
|||
|---|---|---|---|---|
| Under 65 years (n died/survived: 35/1,207) |
65 years and above (n died/survived: 77/333) |
|||
| HR (95% CI) | P value | HR (95% CI) | P value | |
| Intermuscular fat (mm2) | ||||
| Age adjusted | 1.08 (0.75–1.55) | 0.675 | 1.26 (1.03–1.53) | 0.025 |
| Multivariableb adjusted | 1.16 (0.74–1.82) | 0.527 | 1.40 (1.11–1.78) | 0.005 |
| Muscle density (mg/cm3) | ||||
| Age adjusted | 0.97 (0.61–1.53) | 0.880 | 1.50 (1.19–1.90) | <0.001 |
| Multivariableb adjusted | 0.87 (0.51–1.48) | 0.601 | 1.66 (1.24–2.21) | 0.007 |
Hazard ratios and P values were obtained with Cox proportional hazard models.
aPer 1 SD increase in IM fat and 1 SD decrease in muscle density.
bAdjusted for age, height, smoking status, alcohol consumption, physical activity, TV viewing time, health status, cancer, T2D, renal disease, stroke, myocardial infarction, hypertension, BMI and calf muscle cross-sectional area.