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

BMC Public Health

Table 1 Summarised data for meta-analysis: odds ratios of former drinkers by duration compared to current drinkers (with adjusted confidence intervals)

Study	Study type	Gender	Cases / Controls	Years since drinking cessation	Odds ratio	95% Confidence interval		Rescaled^‡
Study	Study type	Gender	Cases / Controls	Years since drinking cessation	Odds ratio	Lower bound	Upper bound	Rescaled^‡
Osaza et al. 2007 [25]	Prospective cohort	Male	519/420639*	0	1.0	.	.	Yes
			15/7436*	2.5	1.3	0.8	2.1
			11/7669*	10	0.7	0.4	1.4
			8/5416*	20	0.7	0.3	1.4
		Female	69/183648*	0	1.0	.	.
			3/2676*	10	2.5	0.5	12.2
			2/1679*	20	2.1	0.3	12.7
Chow et al. 1999 [26]	Case–control	Male	161/212	0	1.0	.	.	Yes
			31/11	3	4.4	1.6	12.2
			12/18	6.5	0.8	0.3	2.4
			16/28	12	0.8	0.3	2.0
		Female	35/36	0	1.0	.	.
			12/2	3	7.3	0.8	69.7
			1/7	6.5	0.2	0.0	9.4
			3/11	12	0.3	0.0	2.0
Unakami et al. 1989 [27]	Case–control	Male	691/105	0	1.0	.	.	No
		Male	11/20	7.5	0.1	0.0	0.2
		Female	105/30	0	1.0	.	.
		Female	2/2	7.5	0.3	0.0	4.1
Munoz et al. 2001 [18]	Case–control	Male	76/68	0	1.0	.	.	Yes
			17/13	7.5	1.2	0.3	4.9
			9/8	12.5	1.0	0.3	3.6
			9/5	17.5	1.6	0.4	6.6
			7/4	22.5	1.3	0.3	5.3
De Stefani et al. 1990 [28]	Case–control	Male	65/169	0	1.0	0.0	0.0	No
			18/33	2	1.0	0.5	2.1
			9/37	6.5	0.5	0.2	1.2
			30/100	11.5	0.9	0.5	1.6

* Person years. ‡ Yes if the comparison group in a specific study was changed by the authors in order to achieve a common reference group between studies.

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