Table 5– Univariate analyses of post-operative pulmonary complications (PPCs) by patient characteristics
CharacteristicPPCsp-value
YesNo
Subjects n128 (18)575 (82)
Age yrs
 <5513 (10)113 (90)0.0002
 55–6521 (12)156 (88)
 >6594 (24)306 (76)
Sex
 Male49 (16)253 (84)0.24
 Female79 (20)322 (80)
BMI kg·m−226.0 (23.4–29.0)26.0 (23.9–29.5)0.82
ASA score
 1 or 231 (11)262 (89)<0.0001
 3 or 497 (24)313 (76)
Performance status
 2116 (18)543 (82)0.11
 312 (27)32 (73)
Dyspnoea score
 293 (15)507 (85)<0.0001
 335 (34)68 (66)
Operation
 Other123 (19)513 (81)0.06
 Pneumonectomy5 (7)62 (93)
Lung cancer
 No9 (14)54 (86)0.38
 Yes119 (19)521 (81)
Comorbidity
 01 (6)17 (94)<0.0001
 1–239 (11)313 (89)
 ≥388 (26)245 (74)
Creatinine group
 Low105 (16)534 (84)0.0001
 High23 (36)41 (64)
Diabetes
 No113 (18)503 (82)0.80
 Yes15 (17)72 (83)
Cholesterol
 No127 (19)559 (81)0.34
 Yes1 (6)16 (94)
Hypertension
 No79 (17)374 (83)0.48
 Yes49 (20)201 (80)
Peripheral vascular disease
 No124 (18)565 (82)0.31
 Yes4 (29)10 (71)
Cerebrovascular accident
 No123 (18)562 (82)0.29
 Yes5 (28)13 (72)
Alcohol
 No128 (18)574 (82)>0.99
 Yes01 (100)
Smoking
 No61 (15)359 (85)0.002
 Yes67 (24)216 (76)
COPD
 No66 (12)472 (88)<0.0001
 Yes62 (38)103 (62)
Physical activity
 ≤25 m9 (26)25 (74)<0.0001
 100 m19 (42)26 (58)
 400 m22 (26)64 (74)
 2 km24 (18)111 (82)
 >2 km25 (11)196 (89)
  • 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.