Table 3. Estimated change in total energy intake according to quartile of the sarcopenia index (SI).

Beta coefficient with 95% confidence interval is shown.

¹⁾Model I: adjusted for age, body weight and energy from alcohol intake.

²⁾Model II: model I + physical activity + levels of total cholesterol and fasting glucose + smoking status.

³⁾For men the first quartile (Q1): SI < 0.82, Q2: 0.82 ≤ SI < 0.89, Q3: 0.89 ≤ SI < 0.97, and Q4: 0.97 ≤ SI. For women, Q1: SI < 0.55, Q2: 0.55 ≤ SI < 0.61, Q3: 0.61 ≤ SI < 0.67, and Q4: 0.67 ≤ SI.

⁴⁾Beta coefficient in linear trend analysis with energy intake and SI: for men 112.3 kcal/ SI (0.1 m²), for women 43.9 kcal/ SI (0.1 m²).

^*P < 0.05, ^** P < 0.01, ^*** P < 0.001 compared to reference group of sarcopenia index (Q1) within same sex or total subjects.