Aging Might Increase the Incidence of Infection from Permanent Pacemaker Implantation

Table 2

The relationship between five factors and positive ratio of sample bacterial culture.

Factors	The first sampling point			The second sampling point			The third sampling point
	Positive number (positive ratio)	𝜒^2	𝑃	Positive number (positive ratio)	𝜒^2	𝑃	Positive number (positive ratio)	𝜒^2	𝑃
Gender		1.031	0.310		1.157	0.561		0.852	0.356
Male: 204	21 (10.3)			28 (13.7)			18 (8.8)
Female: 189	22 (11.6)			23 (12.2)			12 (6.3)
Age		4.057	0.026*		0.501	0.778		4.060	0.045*
<65: 131	8 (7.6)			17 (13.0)			5 (3.8)
≥65: 262	35 (12.6)			34 (13.0)			25 (9.3)
BP		2.509	0.113			0.595		0.010	0.919
HBP: 200	26 (13.0)			25 (12.5)			15 (7.5)
Normal BP: 193	17 (8.8)			26 (13.5)			15 (7.8)
Blood glucose		0.690	0.408		12.593	0.002		0.309	0.578
Diabetes: 81	11 (13.6)			20 (24.7)			5 (6.2)
Nondiabetes: 312	32 (10.3)			31 (9.9)			25 (8.0)
CAD
CAD: 95	10 (10.5)	0.473	0.492	12 (12.6)	0.330	0.846	9 (9.5)	0.602	0.438
Non-CAD: 298	33 (11.1)			39 (13.1)			21 (7.7)

^∗𝑃 values <0.05 were considered statistically significant.