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Table 3 Patient characteristics and operative characteristics (n = 392)

From: A comparison of the Charlson comorbidity index derived from medical records and claims data from patients undergoing lung cancer surgery in Korea: a population-based investigation

Characteristics   n %
Age[year] ≤ 49 46 11.7
  50-59 108 27.6
  60-69 169 43.1
  ≥ 70 67 17.1
  Mean ± SD 60.9 ± 8.8
Gender male 291 74.2
  female 101 25.8
One-year mortality alive 384 98.0
  dead 8 2.0
Three-year mortality alive 358 91.3
  dead 34 8.7
Surgical treatment type wedge resection 12 3.1
  lobectomy 336 85.7
  pneumonectomy 41 10.5
  other 3 0.8
Pathologic stage I 206 52.6
  II 76 19.4
  III 110 28.0
Histologic subtypea squamous cell carcinoma 204 53.0
  adenocarcinoma 155 40.3
  bronchoalveolar carcinoma 17 4.4
  large cell carcinoma 2 0.5
  small cell carcinoma 3 0.8
  other 4 1.0
Length of stay (days) Mean ± SD 37.60 ± 46.32
Mean reimbursement cost(won) Mean ± SD 5,240,683 ± 2,318,995
  1. aSeven patients were missing histologic subtype.