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Table 3 Univariate and multivariate logistic regression analysis of postoperative complications associated factors

From: Low muscle mass and Charlson comorbidity index are risk factors for short-term postoperative prognosis of elderly patients with gastrointestinal tumor: a cross-sectional study

Variable Univariate analysis Multivariate analysis
OR 95%CI p Value OR 95%CI p Value
Sexa 1.4 0.8–2.6 0.226    
Ageb 2.1 1.2–3.8 0.012    
Cancer sitec 1.7 0.9–3.1 0.095    
BMId 2.2 0.9–5.4 0.097    
BMId* 0.8 0.4–1.6 0.618    
Charlson comorbidity indexe 2.2 1.2–4.0 0.014 2.1 1.1–3.9 0.026
History of alcoholf 2.2 0.9–4.9 0.067    
History of tobaccog 1.1 0.6–2.1 0.723    
History of abdominal surgeryh 1.8 1.0–3.5 0.065    
Leukocytei 1.3 0.7–2.3 0.400    
Hemoglobinj 1.2 0.7–2.1 0.207    
Albumink 0.9 0.5–1.7 0.851    
NLRl 0.7 0.4–1.2 0.207    
Cancer stagem 1.8 1.0–3.3 0.060    
Histologic typen 1.2 0.7–1.9 0.510    
Low muscle mass o 2.7 1.5–5.0 0.001 2.6 1.4–4.9 0.002
SFIp 0.8 0.5–1.4 0.442    
VFIq 0.9 0.5–1.6 0.696    
VSRr 1.4 0.8–2.4 0.288    
Intraoperative blood losss 1.4 0.7–2.6 0.386    
Duration of operationt 1.8 1.0–3.2 0.051    
  1. OR odds ratio, CI confidence interval, BMI body mass index, NLR neutrophil to lymphocyte ratio, SMI skeletal muscle index, SFI subcutaneous fat index, VFI visceral fat index, VSR visceral to subcutaneous ratio of fat area
  2. afemale as reference
  3. bage ≤ 75 as reference
  4. ccolorectal cancer as reference
  5. dBMI<18.5 kg/m2 vs 18.5 kg/m2 ≤ BMI ≤ 24 kg/m2
  6. d*BMI>24 kg/m2 vs 18.5 kg/m2 ≤ BMI ≤ 24 kg/m2
  7. eCharlson comorbidity index≤4 as reference
  8. fno history of alcohol as reference
  9. gno history of tobacco as reference
  10. hno history of abdominal surgery as reference
  11. ileukocyte ≥ 5.7 × 10^9/L as reference
  12. jhemoglobin ≥ 126.5 g/L as reference
  13. kalbumin ≥ 42.1 g/L as reference
  14. lNLR ≥ 2.4 as reference
  15. mstageII and stageIII vs stageI
  16. nmoderately and well differentiated vs poorly differentiated
  17. owithout low muscle mass as reference
  18. pSFI ≤ 37.6 cm2/m2 as reference
  19. qVFI ≤ 49.4 cm2/m2 as reference
  20. rVSR ≤ 1.45 as reference
  21. sblood loss≤116 mL as reference
  22. ttime ≤ 196 min as reference