Table 2. Risk of bisphosphonates on oesophageal and gastric cancer in women.

	Oesophageal Cancer Odds Ratio (95% CI)	Gastric Cancer Odds Ratio (95% CI)	All UGI Cancer Odds Ratio (95% CI)
Women taking bisphosphonates	1.43 (1.18–1.72) (171 cases, 503 controls)	1.06 (0.83–1.35) (93 cases, 354 controls)	1·27(1.10–1.47) (264 cases, 857 controls)
Adjusted for smoking	1.54 (1.27–1.88)	1.06 (0.83–1.37)	1.34 (1.14–1.56)
Adjusted for smoking, alcohol intake, PPI, H. pylori status, dyspepsia andBMI	1.43 (1.16–1.75)	0.98 (0.76–1.27)	1.24 (1.06–1.45)