Dairy product consumption and gastric cancer risk: A meta-analysis

Table 5 Subgroup analysis of relative risks for the association between dairy product consumption and gastric cancer risk

	No. of studies	RR (95%CI)	Q-value	pH	I2
Study design
All studies	38	1.06 (0.95-1.18)	112.61	0.000	67.1%
Cohort studies	10	1.00 (0.89-1.14)	12.90	0.167	30.2%
HCC studies	17	0.94 (0.83-1.08)	30.50	0.016	47.5%
PCC studies	11	1.36 (0.94-1.96)	59.14	0.000	83.1%
Sex
Women	8	1.00 (0.88-1.13)	6.70	0.460	0.0%
Men	8	0.98 (0.90-1.07)	9.42	0.224	25.7%
Region
Asia	15	0.92 (0.83-1.02)	23.08	0.059	39.3%
Europe	13	1.15 (0.86-1.55)	55.50	0.000	78.4%
America	10	1.20 (0.95-1.50)	20.18	0.017	55.4%
Adjustments
Smoking No smoking	1721	1.06 (0.90-1.25)1.06 (0.91-1.23)	35.00 77.31	0.0040.000	54.3%74.1%
DrinkingNo drinking	533	1.19 (0.81-1.74)1.04 (0.93-1.17)	11.47 98.41	0.0220.000	65.1%67.5%

RR: Relative risk (rate ratio or hazard ratio); CI: Confidence interval.