Table 5.

Multiple logistic regression of risk factors for presence of any complication.

	n	Wald	Sig.	Exp(B)	95% CI for EXP(B)
					Lower	Upper
Age category (years)
17–45	128	10.35	.006
46–65	212	0.05	0.82	1.06	0.64	1.76
>65	460	5.24	.02	1.73	1.08	2.78
Gender
Male	373			1.00
Female	427	0.28	0.60	1.09	0.80	1.49
Presence of comorbidities
Diabetes mellitus	530	0.001	0.98	1.004	0.70	1.43
Chronic kidney disease	175	2.47	0.12	1.35	0.93	1.95
Chronic obstructive pulmonary disease	154	2.70	0.10	1.40	0.94	2.09
Asthma	236	0.91	0.34	1.17	0.85	1.63
Other risk factors
Smoker	101	1.38	0.24	1.33	0.82	2.16
Immunocompromised	34	9.36	.002	4.35	1.70	11.14
Immunosuppressant therapy	82	0.04	0.83	1.06	0.63	1.76
Type of pneumonia
Community acquired	640			1.00
Hospital acquired	160	20.20	<.001	2.42	1.65	3.56
Constant		9.89	<.001	0.51

Omnibus tests of model coefficients: Chi-square=62.892, df=11, P<.001; −2 log likelihood: 1042.496; Cox and Snell R Square: .076; Nagelkerke R square: .101