Table 5.

Results for logistic regression.^a.

Odds Ratio (Exp B)				95% C.I. for Exp B
Independent Variables	Model # 1	Model #2	Model #3	Lower	Upper
Liner Size	0.15* (p = 0.02)	0.13*(p = 0.02)	0.14* (p = 0.02)	0.25	0.80
BMI		1.05 (p = 0.20)	1.05 (p = 0.27)	0.96	1.15
ASA Classification			0.29 (p = 0.32)	0.03	3.39
Constant	0.10	0.24	0.10
Nagelkerke (pseudo R2)	0.11	0.13	0.25
N	194	194	194

^a*p < 0.05.