Time characteristics of the effect of alcohol cessation on the risk of stomach cancer – a meta-analysis

BMC Public Health

Table 2 Meta-analysis trend estimates of risk of stomach cancer after alcohol cessation

	Random effects meta analysis
Explanatory variables:	Model 1^a	Model 2	Model 3	Model 4
Trend in OR	0.982*	0.988	0.990	0.994
Proportion in study male		0.915
Study did not control for smoking			0.841	0.378***
Study did not require a minimum of 1 year of cessation before included in study				2.802***
Q-statistics	52.62	52.41	51.96	42.77
Wald test of joint significance (Prob > Chi2)	0.08*	0.19	0.15	0.00**

Number of studies: 5; Number of observations: 20; * = significant 90% confidence level, ** 95% confidence level, *** 99% confidence level; a = models differ based on included explanatory variables.

ISSN: 1471-2458