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Table 1 Baseline characteristics of the overall population.

From: Admission of advanced lung cancer patients to intensive care unit: A retrospective study of 76 patients

  All patients n = 76 MICU survivors n = 40 MICU non survivors n = 36 P value
Patient characteristics     
Age (years), mean ± SD 62.95 ± 9.9 62.94 ± 9.7 62.96 ± 10.3 0.99
Males, n (%) 69 (90.8) 36 (90) 33 (91.7) 0.56
Period: before January 1, 2002 17 (22.4) 10 (25) 7 (19.4) 0.36
Co-morbidities     
Smoking, n (%) 71 (95.9) 39 (97.5) 32 (94.1) 0.43
CCI, mean ± SD [range] 1.61 ± 1.16 0[17] 1.69 ± 1.54 0[14] 1.63 ± 1.71 0[17] 0.87
CCI Low, n (%)   13 (32.5) 14 (35) 0.83
   Mid-range, n (%)   14 (35) 11 (27.5)  
   High, n (%)   13 (32.5) 11 (27.5)  
COPD, n (%) 24 (32) 12 (30) 12 (33) 0.42
Chronic respiratory failure, n (%) 4 (5.3) 3 (7.5) 1 (2.7) 0.37
Diabetes, n (%) 9 (11.8) 5 (12.5) 4 (11.1) 0.57
Non pulmonary neoplasm, n (%) 16 (21) 10 (25) 6 (16,6) 0.28
Lung cancer     
NSCLC, n (%) 49 (64.5) 28 (70) 21 (58.3) 0.21
   Squamous cell carcinoma, n (%) 30/49 (61,2) 18/29 (62.1) 12/20 (60) 0.56
   Adenocarcinoma, n (%) 14/49 (28.6) 7/29 (24.1) 7/20 (35) 0.30
   Undifferentiated carcinoma, n (%) 2 (4.1) 2/29 (6.9) 0 0.34
SCLC, n (%) 29 (38.2) 14 (35) 15 (41.7) 0.35
Stage*     
NSCLC IIIB, n (%) 20/49 (40.8) 10/28 (35.7) 10/21 (47.6) 0.29
NSCLC IV, n (%) 29/49 (59.2) 18/28 (64.3) 11/21 (52.4) 0.29
Localized SCLC, n (%) 11/29 (37.9) 6/14 (42.9) 5/15 (33.3) 0.44
Disseminated SCLC, n (%) 18/29 (62.1) 8/14 (57.1) 10/15 (66.7) 0.44
Metastasis, n (%) 45 (59.2) 24 (60) 21 (58.3) 0.53
Lung cancer treatment     
Chemotherapy, n (%) 43 (56.5) 19 (47.5) 24 (66.7) 0.073
Radiotherapy, n (%) 22 (28.9) 8 (20) 14 (38.9) 0.05
Surgery, n (%) 6 (7.9) 2 (5) 4 (11) 0.28
  1. Percentages are relative to the total number of patients (n = 76 patients for the overall population, n = 36 for the MICU non survivors and n = 40 for the MICU survivors) unless otherwise specified. *Two patients had both NSCLC and SCLC.CCI: Charlson Comorbidity Index; NSCLC: Non small cell lung cancer; SCLC: small cell lung cancer; MICU: medical intensive care unit. Metastasis means extensive SCLC or stage IV NSCLC