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Table 1 Characteristics of the study populationa

From: Lifetime survival and medical costs of lung cancer: a semi-parametric estimation from South Korea

Number of patients (%)

Surgery

Surgery+CTx/RTx

CTx/RTx

BSC

Total

Total

426 (14.6)

296 (10.1)

1405 (48.1)

792 (27.1)

2919 (100.0)

Males

313 (73.5)

221 (74.7)

1135 (80.8)

611 (77.2)

2280 (78.1)

Age (years)

 Mean (SE)

63.7 (8.9)

62.1 (8.3)

65.8 (8.6)

73.2 (7.7)

67.1 (9.2)

 Median (IQR)

64.5 (13.0)

62.0 (12.0)

67.0 (12.0)

74.0 (10.0)

68.0 (13.0)

Year at diagnosis

 2004

58 (13.6)

30 (10.1)

171 (12.2)

132 (16.7)

391 (13.4)

 2005

46 (10.8)

34 (11.5)

195 (13.9)

105 (13.3)

380 (13.0)

 2006

44 (10.3)

38 (12.8)

197 (14.0)

105 (13.3)

384 (13.2)

 2007

59 (13.9)

54 (18.2)

210 (15.0)

109 (13.8)

432 (14.8)

 2008

75 (17.6)

50 (16.9)

195 (13.9)

124 (15.7)

444 (15.2)

 2009

72 (16.9)

43 (14.5)

204 (14.5)

98 (12.4)

417 (14.3)

 2010

72 (16.9)

47 (15.9)

233 (16.6)

119 (15.0)

471 (16.1)

Smoking status

 Missing

5 (1.2)

2 (0.7)

22 (1.6)

17 (2.2)

46 (1.6)

 Non-smoker

216 (50.7)

148 (50.0)

613 (43.6)

404 (51.0)

1381 (47.3)

 Smokerb

205 (48.1)

146 (49.3)

770 (54.8)

371 (46.8)

1492 (51.1)

Charlson comorbidity patient score

 Mean (SE)

2.3 (1.3)

2.1 (1.2)

2.3 (1.3)

2.6 (1.4)

2.3 (1.3)

 Median (IQR)

2.0 (2.0)

2.0 (2.0)

2.0 (2.0)

2.0 (3.0)

2.0 (2.0)

  1. BSC best supportive care, CTx/RTx chemotherapy and/or radiation therapy, IQR interquartile range, SE standard error
  2. aThe most recent health screening results based on the time of diagnosis
  3. bCurrent smoker or ex-smoker