Table 5. Associations of demographic and clinical variables with 30-day mortality in patients provided intravenous treatment in nursing homes and hospital.

Multilevel logistic regression model with nursing home as cluster (random intercept).

	Bivariate analysis			Multivariate analysis (n = 249)
	OR	(95% CI)	P-value	OR	(95% CI)	P-value
Intervention	1.49	0.88 to 2.51	0.14	1.22	0.50 to 3.05	0.66
Nursing home treatment	1.12	0.68 to 1.84	0.67	1.43	0.64 to 3.23	0.39
Intravenous antibiotics	3.54	2.05 to 6.11	<0.01	2.79	1.23 to 6.30	0.01
Female	1.10	0.69 to 1.76	0.69	1.03	0.56 to 1.90	0.92
Age
<70	Reference			Reference
70 to 79	0.31	0.13 to 0.70	<0.01	0.17	0.57 to 0.52	<0.01
80 to 89	0.42	0.20 to 0.88	0.02	0.37	0.13 to 1.04	0.06
>90	0.37	0.16 to 0.88	0.02	0.37	0.12 to 1.14	0.08
Congestive heart failure	0.22	0.72 to 2.09	0.46	1.41	0.72 to 2.77	0.32
Reduced consciousness	2.14	1.31 to 3.47	<0.01	2.61	1.41 to 4.83	<0.01
Systolic blood pressure at onset (tertiles)
<115 mmHg	Reference			Reference
115 to 138 mmHg	0.87	0.50 to 1.53	0.63	1.28	0.61 to 2.68	0.52
>138 mmHg	0.71	0.39 to 1.27	0.25	0.93	0.43 to 2.00	0.86
CRP at onset (tertiles)
<65	Reference			Reference
65 to 156	1.28	0.67 to 2.44	0.46	0.86	0.39 to 1.93	0.72
>156	2.98	1.59 to 5.57	<0.01	1.84	0.82 to 4.15	0.14
Number of nursing homes in intervention (time factor)
1 to 5	Reference			Reference
6 to 10	0.53	0.22 to 1.25	0.15	0.54	0.17 to 1.68	0.29
11 to 15	1.41	0.65 to 3.06	0.38	1.86	0.64 to 5.42	0.26
16 to 20	0.70	0.33 to 1.47	0.34	0.67	0.24 to 1.89	0.45
21 to 25	0.76	0.31 to 1.87	0.56	0.95	0.25 to 3.57	0.94
26 to 30	0.73	0.35 to 1.52	0.40	0.71	0.22 to 2.32	0.57