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

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

  Random effects meta analysis
Explanatory variables: Model 1a 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**
  1. 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.