Retrospective Cohort Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Dec 7, 2015; 21(45): 12843-12850
Published online Dec 7, 2015. doi: 10.3748/wjg.v21.i45.12843
Table 2 Preoperative characteristics of elderly patients undergoing partial colectomy after propensity score matching n (%)
CharacteristicsLaparoscopic colectomy(n = 11008)Open colectomy (n = 11008)P value
Age
mean ± SD75.12 ± 6.9775.21 ± 6.980.857
median ± IQR74 ± 1174 ± 120.332
BMI (mean ± SD)27.31 ± 6.4227.23 ± 7.050.368
Gender0.021
Female6685 (60.7)6852 (62.2)
Male4323 (39.3)4156 (37.8)
Procedure0.013
Right partial colectomy2549 (23.2)2736 (24.8)0.003
Left partial colectomy6237 (56.7)6099 (55.4)0.061
Sigmoidectomy2222 (20.1)2173 (19.8)0.409
Indication< 0.001
Benign4361 (39.6)3966 (36.0)
Malignant4193 (38.1)5431 (49.3)
Unknown2454 (22.3)1611 (14.6)
ASA class
I127 (1.1)110 (1.0)
II4563 (41.5)4563 (41.5)
III5852 (53.2)5673 (51.5)
IV463 (4.2)658 (6.0)
V3 (0.02)4 (0.03)
ASA III, IV or V6318 (57.4)6335 (57.5)0.817
Alcohol341 (3.0)289 (2.6)0.036
Current smoker1051 (9.5)993 (9.0)0.178
Cardiac diseases7905 (71.8)7845 (71.3)0.370
Hypertension7654 (69.5)7614 (69.2)0.559
History of CHF116 (1.1)134 (1.2)0.252
History of MI51 (0.5)57 (0.5)0.563
History of angina75 (0.6)86 (0.7)0.384
History of PCI902 (8.2)807 (7.3)0.017
History of PCS924 (8.4)894 (8.1)0.463
Pulmonary diseases815 (7.4)778 (7.1)0.336
Dyspnea1526 (13.7)1513 (13.7)0.432
History of COPD801 (7.3)758 (6.9)0.259
Ventilator dependent3 (0.02)3 (0.02)1.000
Pneumonia18 (0.2)24 (0.2)0.354
Neurological disease921 (8.4)896 (8.1)0.540
History of CVA333 (3.0)305 (2.8)0.261
History of CVANO323 (2.9)307 (2.8)0.518
History of TIA347 (3.2)353 (3.2)0.818
History of tumor CNS10 (0.1)6 (0.1)0.317
Renal diseases57 (0.5)55 (0.5)0.850
History of renal failure12 (0.1)13 (0.1)0.841
Dialysis dependent49 (0.4)48 (0.4)0.919
Bleeding disorders466 (4.2)425 (3.9)0.161
Steroid use1353 (3.2)318 (2.9)0.170
Diabetes2077 (18.9)2040 (18.5)0.522