Table 3.

Associations of the serum level of hsCRP with H. pylori seropositivity and odds ratio (OR) and 95% confidence interval (CI) of H. pylori for hsCRP

	H. pylori	Low*	High†	OR (95% CI)	aOR‡ (95% CI)	aOR§ (95% CI)
YTI‖	Seronegative	155 (79.9)	39 (20.1)	1 [Reference]	1 [Reference]	1 [Reference]
n=453	Seropositive	199 (76.8)	60 (23.2)	1.20 [ 0.76-1.89]	1.13 [ 0.71-1.79]	1.18 [ 0.74-1.90]
ENUH¶	Seronegative	220 (84.0)	42 (16.0)	1 [Reference]	1 [Reference]	1 [Reference]
n=449	Seropositive	131 (78.0)	37 (22.0)	1.49 [ 0.92-2.44]	1.38 [ 0.83-2.32]	1.37 [ 0.81-2.31]
PIC**	Seronegative	165 (81.4)	38 (18.7)	1 [Reference]	1 [Reference]	1 [Reference]
n=255	Seropositive	35 (67.3)	17 (32.7)	2.11 [ 1.07-4.16]	2.20 [ 1.11-4.37]	-
Pooled††	Seronegative	553 (82.3)	119 (17.7)	1 [Reference]	1 [Reference]	1 [Reference]
n=1,157	Seropositive	371 (76.5)	114 (23.5)	1.45 [ 1.07-1.97]	1.37 [ 1.01-1.86]	1.38 [ 1.01-1.89]

Low^*: hsCRP≦0.1mg/dl, High^†: hsCRP>0.1mg/dl, ^‡Sex-, and age-adjusted odds ratios (aOR^‡), ^§Sex-, age- smoking- and BMI-adjusted odds ratios (aOR^§), YTI^‖: Yakumo Town Inhabitants, ENUH^¶: Examinees of Nagoya University Hospital, PIC^**: Patients of Infertility Clinic, Nagoya University Hospital, Pooled^††: three studies were combined, and the ORs were adjusted additionally for the study groups using dummy variables.

Percentages are shown in parentheses.