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Table 4 Univariate and multivariate analysis of disease-free survival

From: Comparison of surgical and oncologic outcomes in very elderly patients (≥ 80 years old) and elderly (65–79 years old) colorectal cancer patients: a propensity score matching

Risk factors

Univariate analysis

Multivariate analysis

HR (95% CI)

P value

HR (95% CI)

P value

Age (very elderly/elderly)

1.826 (1.467–2.274)

 < 0.01**

1.816 (1.579–2.088)

 < 0.01**

Sex (male/female)

0.879 (0.729–1.060)

0.178

  

BMI (> / ≤ 22.6)

0.888 (0.739–1.068)

0.207

  

Hypertension (yes/no)

0.885 (0.728–1.075)

0.217

  

T2DM (yes/no)

0.963 (0.747–1.240)

0.769

  

Tumor site (colon/ rectum)

1.165 (0.970–1.399)

0.103

  

Tumor stage (I/II/III)

1.788 (1.554–2.056)

 < 0.01**

1.816 (1.579–2.088)

 < 0.01**

Smoking (yes/no)

1.114 (0.923–1.343)

0.261

  

Drinking (yes/no)

1.019 (0.833–1.247)

0.856

  

CHD (yes/no)

1.068 (0.749–1.522)

0.716

  

Overall complications (yes/no)

1.500 (1.240–1.813)

 < 0.01**

1.379 (1.128–1.685)

0.002**

Major complications (yes/no)

1.992 (1.350–2.939)

0.001**

1.902 (1.259–2.874)

0.002**

  1. HR, Hazard ratio; CI, confidence interval; BMI, body mass index; T2DM, type 2 diabetes mellitus; CHD, coronary heart disease
  2. * P-value < 0.05, ** P-value < 0.01