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Table 1 Patient characteristics

From: The presence of old pulmonary tuberculosis is an independent prognostic factor for squamous cell lung cancer survival

  All NSCLC SCC
Characteristic Number (% of total) Without tuber-culosis (%) With tuber-culosis (%) p-value Number (% of SCC) Without tuber-culosis (%) With tuber-culosis (%) p-value
Number of subjects 782(100) 718(91.8) 64(8.2)   302(100) 269(89.1) 33(10.9)  
Age at diagnosis (years) (mean±SD) 60±10.2 60±10.2 61±9.8 0.43 62±9.3 62±9.4 63±7.9 0.83
PS     1.0     0.39
0 98 90 8   35 33 2  
1 624 628 56 267 236 21  
Sex     0.06     0.13
Male 600(76.7) 545(75.9) 55(85.9)   285(94.4) 252(93.7) 33(100)  
Female 182(23.3) 173(24.1) 9(14.1) 17(5.6) 17(6.3) 0(0)
Smoking status     0.18     0.70
Never 240(30.7) 225(31.3) 15(23.4)   48(15.9) 42(15.6) 6(18.2)  
Smoker or ex-smoker 542(69.3) 493(68.7) 49(76.6) 254(84.1) 227(84.4) 27(81.8)
Stage of lung cancer at diagnosis c 0.18     0.16
I 315(40.3) 287(40.0) 28(43.8)   123(40.7) 114(42.4) 9(27.3)  
II 157(20.1) 141(19.6) 16(25.0) 60(19.9) 50(18.6) 10(30.3)
III 246(31.5) 227(30.6) 19(29.7) 110(36.4) 96(35.7) 14(42.4)
IV 64(8.2) 63(8.8) 1(1.6) 9(3.0) 9(3.3) 0(0.0)
Histologic type     0.06     
SCC 302(38.6) 269(37.5) 33(51.6)      
Adenocarcinoma 406(51.9) 378(52.6) 28(43.8)     
Other a 74(9.5) 71(9.9) 3(4.7)     
Surgical approach     0.10     0.07
Lobectomy 685(87.6) 633(88.2) 52(81.2)   245(81.1) 222(82.5) 23(69.7)  
Pneumonectomy 97(12.4) 85(11.8) 12(18.8) 57(18.9) 47(17.5) 10(30.3)
Median survival (year) 3.4 3.4 3.0 0.50 3.2 3.4 1.7 <0.01b
  1. a Including adenosquamous carcinoma, sarcomatoid carcinoma, and undifferentiated carcinoma.
  2. b A p-value less than 0.05 was considered statistically significant.
  3. C All patients were re-staged according to the 7th edition lung cancer staging. SCC = squamous cell carcinoma.