Table 2. Multivariate analysis of risk factors for SCAP and death in Hospital of 5,030 CAP patients.

Risk factors	Odds ratio (95% CI)	P value
SCAP as outcome
Age group* (years)
0–1	10.80 (7.06–16.54)	<0.001
2–4	1.90 (1.20–3.01)	0.006
5–9	3.03 (1.91–4.83)	<0.001
10–17	2.29 (1.27–4.14)	0.006
45–64	2.06 (1.36–3.14)	0.001
65–79	3.50 (2.33–5.25)	<0.001
≥80	4.39 (2.91–6.63)	<0.001
Chronic lung disease	1.74 (1.45–2.09)	<0.001
Cardiovascular disease	1.55 (1.29–1.85)	<0.001
Diabetes mellitus	1.55 (1.27–1.90)	<0.001
Chronic kidney disease	2.52 (1.80–3.53)	<0.001
Immunosuppression	2.41 (1.59–3.67)	<0.001
Neurologic disorder	3.19 (2.54–4.01)	<0.001
Other system disease	1.29 (1.02–1.63)	0.033
Mycoplasma pneumoniae	0.61 (0.38–0.96)	0.031
Constant	0.05	<0.001
Death in hospital as outcome
Age group* (years)
0–1	0 (0–0)	0.994
2–4	0 (0–0)	0.992
5–9	0 (0–0)	0.993
10–17	0.78 (0.09–7.08)	0.828
45–64	2.68 (0.90–8.01)	0.078
65–79	7.85 (2.83–21.83)	<0.001
≥80	10.09 (3.62–28.06)	<0.001
Diabetes mellitus	1.44 (1.01–2.06)	0.005
Chronic kidney disease	2.06 (1.25–3.41)	<0.001
Immunosuppression	6.52 (4.00–10.62)	0.023
Neurologic disorder	1.57 (1.06–2.33)	<0.001
Constant	0	0.994

*, age group was transferred to dummy variables with 18–45 years as the reference category. CAP, community-acquired pneumonia; SCAP, severe CAP.