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Table 2 Association between protein intake and weight-adjusted low muscle mass

From: Association between total protein intake and low muscle mass in Korean adults

  Model 1 Model 2 Model 3 Model 4 Model 5
OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
Protein intake quartile (g/kg)
 Q1 4.96 (3.48–7.08) 3.75 (2.61–5.40) 3.80 (2.64–5.46) 3.60 (2.49–5.21) 4.32 (2.89–6.45)
 Q2 2.61 (1.84–3.71) 2.12 (1.49–3.02) 2.13 (1.50–3.04) 2.07 (1.45–2.95) 2.44 (1.64–3.61)
 Q3 2.02 (1.35–3.01) 1.83 (1.22–2.73) 1.84 (1.23–2.74) 1.82 (1.22–2.72) 2.03 (1.36–3.02)
 Q4 1 1 1 1 1
P for trend < 0.001 < 0.001 < 0.001 < 0.001 < 0.001
Nagelkerke 0.040 0.078 0.082 0.099 0.099
Protein intake
 Inadequate 2.54 (2.09–3.08) 2.03 (1.65–2.50) 2.04 (1.66–2.52) 1.95 (1.58–2.42) 1.90 (1.52–2.37)
 Adequate 1 1 1 1 1
Nagelkerke 0.028 0.068 0.072 0.089 0.089
  1. Abbreviation: OR Odds ratio, CI Confidence interval
  2. Model 1 was not adjusted
  3. Model 2 was adjusted for age, sex, household income and education
  4. Model 3 was adjusted for age, sex, household income, education, smoking status, and physical activity
  5. Model 4 was adjusted for age, sex, household income, education, smoking status, physical activity, hypertension, diabetes mellitus and dyslipidemia
  6. Model 5 was adjusted for age, sex, household income, education, smoking status, physical activity, hypertension, diabetes mellitus, dyslipidemia, and overconsumption of calories