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Table 4 Univariate and multivariate progression-free survival (PFS) analyses for patients with stage I NSCLC

From: Effect of body mass index on survival of patients with stage I non-small cell lung cancer

Variate PFS rate (%) Univariate analysis P value Multivariate analysis
3-year 5-year HR (95% CI) P value
Age (years)    0.068 1.45 (1.09–1.93) 0.011
 <60 79.4 ± 2.4 69.9 ± 2.8    
 ≥60 73.9 ± 2.4 65.0 ± 2.7    
Smoking    0.003 1.43 (1.08–1.90) 0.014
 Never 80.8 ± 2.2 72.2 ± 2.6    
 Current or ever 71.9 ± 2.6 62.0 ± 2.9    
BMI    0.034 1.28 (0.97–1.68) 0.080
 Overweight 80.2 ± 2.3 71.1 ± 2.7    
 Others 72.9 ± 2.5 63.6 ± 2.8    
Extent of resection    <0.001 4.71 (2.23–9.97) <0.001
 Lobectomy or bilobectomy 77.2 ± 1.7 68.0 ± 2.0    
 Pneumonectomy 38.4 ± 14.7 28.8 ± 13.8    
FEV1/FVC (%)    0.910 0.70 (0.46–1.07) 0.096
 <70 76.3 ± 1.9 67.3 ± 2.1    
 ≥70 77.6 ± 4.7 66.8 ± 5.4    
Adjuvant chemotherapy    0.128 1.39 (1.01–1.91) 0.043
 Absent 77.6 ± 1.9 68.7 ± 2.2    
 Present 72.3 ± 3.9 61.8 ± 4.4    
  1. The data of survival rates are expressed as mean ± standard error. Abbreviations as in Tables 1 and 3