Table 3.

Standardized incidence ratios and confidence interval for colonic and extracolonic cancers in microscopic colitis compared to US SEER population

	Standardized incidence ratio (95% CI)
Cancer type	Women	Men
Colorectal cancer	1.97 (0.86–3.89)	1.59 (0.27–5.24)
Gastric cancer	0 (0–5.58)	3.75 (0.19–18.51)
Pancreatic cancer	1.81 (0.30–5.98)	2.55 (0.13–12.59)
Liver cancer	0 (0–6.25)	0 (0–7.61)
Lung cancer	1.26 (0.51–2.62)	0.60 (0.03–2.95)
Breast cancer	1.30 (0.83–1.93)	–
Thyroid cancer	2.20 (0.89–4.57)	0 (0–12.82)
Bone cancer	0 (0–30.02)	0 (0–87.09)
Melanoma	1.76 (0.77–3.47)	0.68 (0.03–3.37)

CI confidence interval, SEER Surveillance, Epidemiology, and end-result