Table 2 Patient Demographics

Pre operative variables

 Mean age (standard deviation) in years*

58.99 (8.699)

66.72 (9.504)

–

–

p < 0.001

 Sex (percentage female)*

38.4%

61.5%

0.390

[0.294, 0.518]

p < 0.001

 Elective vs Non-elective admission (percentage elective)

95.5%

96%

0.883

[0.452, 1.722]

p = 0.714

 Diabetes without complication (percentage diabetic)

12.3%

14.8%

0.810

[0.533, 1.232]

p = 0.324

 Tobacco use disorder (percentage users)*

10.3%

15.8%

0.614

[0.391, 0.964]

p = 0.032

 Obesity (percentage obese)

34%

30.9%

1.150

[0.860, 1.538]

p = 0.344