Table 1.

Demographic characteristics of pneumonia and non-pneumonia.

Variable	Pneumonia (N = 7565)		Non-Pneumonia (N = 7565)		p-Value
	n	%	n	%
Vaccination					0.026 *
No	5006	66.2	4876	64.5
Yes	2559	33.8	2689	35.5
Age					1
<40	1739	23.0	1739	23.0
40–65	1383	18.3	1383	18.3
≥65	4443	58.7	4443	58.7
Mean ± SD	59.1 ± 29.1		59.1 ± 29.1		1
Gender					1
Female	2991	39.5	2991	39.5
Male	4574	60.5	4574	60.5
Hypertension	3694	48.8	3173	41.9	<0.001 **
Diabetes	1673	22.1	1116	14.8	<0.001 **
Cerebrovascular disease	1425	18.8	693	9.2	<0.001 **
Renal disease	591	7.8	301	4.0	<0.001 **
Liver disease	385	5.1	298	3.9	0.001 **
Ischemic heart disease	1435	19.0	1111	14.7	<0.001 **
Dementia	665	8.8	262	3.5	<0.001 **
Alcohol-related disorder	58	0.8	15	0.2	<0.001 **
Malignancy	1009	13.3	406	5.4	<0.001 **

* p < 0.05, ** p < 0.01.