Table 3.

Direct logistic regression model with factors affecting mortality of patients complicated intra-abdominal infection, global study of 132 centres, (n = 4553)

Score variable	B	S.E.	Wald test	P value	OR	OR 95 % C.I.
						Lower	Upper
Sepsis status	1.57	0.08	365.59	<0.0001	4.81	4.09	5.65
Setting of infection acquisition	0.6	0.18	10.49	0.001	1.81	1.27	2.6
Source of infectiona			59.38	<0.0001
Colonic non-diverticulical perforation	−0.26	0.27	0.97	0.33	0.77	0.46	1.3
Diverticulitis diffuse peritonitis	−0.26	0.34	0.51	0.48	0.78	0.40	1.54
Postoperative diffuse peritonitis	−0.005	0.29	0	0.99	1.00	0.56	1.76
Remaining sources	−1.2	0.21	32.47	<0.0001	0.30	0.20	0.46
Delay in management	1.47	0.17	78.53	<0.0001	4.33	3.13	5.99
Age	0.04	0.004	103.58	<0.0001	1.04	1.04	1.05
Immunosuppression	1.24	0.17	55.79	<0.0001	3.46	2.5	4.79
Constant	−7.52	0.41	342.24	<0.0001	0.001

OR odds ratio

^aCompared with small bowel perforation