Table 2– Frequency of mortality by patient characteristics
CharacteristicTotalMortalityp-value
YesNo
Subjects n70316 (2)687 (98)
Age yrs
 <55126 (18)2 (2)124 (98)0.39
 55–65177 (25)2 (1)175 (99)
 >65400 (57)12 (3)388 (97)
Sex
 Male401 (57)1 (1)301 (99)0.003
 Female302 (43)15 (4)386 (96)
BMI kg·m−226.0 (23.4–29)26.0 (23.5–29.2)24.5 (21.5–26.4)0.02
ASA score
 1 or 2293 (42)7 (2)286 (98)0.87
 3 or 4410 (58)9 (2)401 (98)
Performance status
 2659 (94)15 (2)644 (98)>0.99
 344 (6)1 (2)43 (98)
Dyspnoea score
 2600 (85)14 (2)586 (98)>0.99
 3103 (15)2 (2)101 (98)
Operation
 Other636 (90)12 (2)624 (98)0.06
 Pneumonectomy67 (10)4 (6)63 (94)
Lung cancer
 No63 (9)063 (100)0.38
 Yes640 (91)16 (3)624 (97)
Comorbidity
 018 (3)018 (100)0.21
 1–2352 (50)5 (1)347 (99)
 ≥3333 (47)11 (3)322 (97)
Creatinine group >2 mg·dL−1
 Low639 (91)14 (2)625 (98)0.65
 High64 (9)2 (3)62 (97)
Diabetes
 No616 (88)14 (2)602 (98)>0.99
 Yes87 (12)2 (2)85 (98)
Cholesterol
 No686 (98)16 (2)670 (98)>0.99
 Yes17 (2)017 (100)
Hypertension
 No453 (64)12 (3)441 (97)0.37
 Yes250 (36)4 (2)246 (98)
Peripheral vascular disease
 No689 (98)15 (2)674 (98)0.28
 Yes14 (2)1 (7)13 (93)
Cerebrovascular accident
 No685 (91)15 (2)670 (98)0.34
 Yes18 (9)1 (6)17 (94)
Alcohol
 No702 (99)16 (2)686 (98)>0.99
 Yes1 (1)01 (100)
Smoking
 No420 (60)6 (1)414 (99)0.07
 Yes283 (40)10 (4)273 (96)
COPD
 No538 (77)8 (1)530 (99)0.03
 Yes165 (23)8 (5)157 (95)
Physical activity
 ≤25 m34 (7)1 (3)33 (97)0.80
 100 m45 (9)1 (2)44 (98)
 400 m86 (16)4 (5)82 (95)
 2 km135 (26)4 (3)131 (97)
 >2 km221 (42)5 (2)216 (98)
  • Data are presented as n (%) or median (interquartile range), unless otherwise stated. BMI: body mass index; ASA: American Society of Anesthesiologists; COPD: chronic obstructive pulmonary disease.