Table 4. Effect of alendronate on oesophageal cancer for men and women (mean number of observations 19,991.

	Odds Ratio	P value	95% confidence interval
Women on alendronate (95 cases, 288 controls)	1·37	0·014	1·07–1·75
Adjusted for smoking	1·42	0·007	1·10–1·83
Men on alendronate (24 cases and 122 controls)	0·78	0·28	0·50–1·22
Adjusted for smoking	0·73	0·19	0·46–1·17