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Table 3 Associations between sarcopenia index and postoperative complications

From: Sarcopenia index based on serum creatinine and cystatin C predicts the risk of postoperative complications following hip fracture surgery in older adults

Adverse reactions Total Internal fixation Joint replacement
Model 1 Model 2 Model 1 Model 2 Model 1 Model 2
Pneumonia
 low muscle mass (ref) 1 1 1 1 1 1
 high muscle mass 0.78(0.52-1.17) 0.75(0.48-1.18) 1.04(0.63-1.71) 1.02(0.61-1.86) 0.44(0.22-0.92)* 0.39(0.18-0.89)*
Urinary tract infection
 low muscle mass (ref) 1 1 1 1 1 1
 High muscle mass 0.78(0.29-2.10) 1.04(0.35-3.03) 1.01(0.29-3.52) NA 0.50(0.1-2.8) NA
Respiratory failure
 low muscle mass (ref) 1 1 1 1 1 1
 high muscle mass 1.17(0.39-3.52) 1.19(0.35-4.04) 1.01(0.25-4.07) NA 0.67(0.11-4.04) NA
Heart failure
 low muscle mass (ref) 1 1 1 1 1 1
 high muscle mass 1.82(0.61-5.48) 2.31(0.64-8.33) 1.35(0.3-6.08) 1.10(0.16-7.51) 2.56(0.49-13.38) NA
Non-a-grade healing
 low muscle mass (ref) 1 1 1 1 1 1
 high muscle mass 1.00(0.5-2.03) 1.26(0.58-2.72) 1.40(0.63-3.09) 1.71(0.72-4.04) 0.2(0.02-1.7) NA
  1. Model 1: non-adjusted model.
  2. Model 2: adjustment for age, sex, smoking history, drinking history, BMI, eGFR ALB level, methods of anesthesia, and presence of chronic diseases (hypertension, diabetes, coronary heart disease, chronic obstructive pulmonary disease).
  3. NA: unable to analyze due to few postoperative complication events.
  4. *: p<0.05