Table 5.

Number, incidence rates ratios (IRR), and 95% confidence intervals (95% CI) of colorectal, pancreatic, liver, trachea, bronchus, and lung cancer, stomach cancer and lymphoma, corpus uteri, breast (women only), ovary, kidney, bladder, and prostate cancer by type of treatment with type 1 and type 2 diabetes (DM1; DM20). Reggio Emilia 2011-16, resident population aged 20–84 years. See Supplementary Material Table S6 for “other sites”.

	Corpus Uteri (C54)								Breast (C50)								Ovary (C56)
	Patients with DM2 in Diet-Only as Reference				Population without DM as Reference				Patients with DM2 in Diet-Only as Reference				Population without DM as Reference				Patients with DM2 in Diet-Only as Reference				Population without DM as Reference
	N	IRR	95% CI		N	IRR	95%CI		N	IRR	95% CI		N	IRR	95% CI		N	IRR	95% CI		N	IRR	95% CI
Population with no DM (N = 379,103)					333	1.00	-	-					2056	1.00	-	-					200	1.00	-	-
Population with DM (N = 21,948)					41	1.49	1.06	2.08					145	0.97	0.81	1.15					25	1.56	1.02	2.39
1. Type 1 diabetes (N = 758)					0	-	-	-					4	1.13	0.42	3.01					0	-	-	-
2. Type 2 diabetes (N = 21,190)					41	1.52	1.09	2.13					141	0.96	0.81	1.15					25	1.60	1.04	2.46
2.1 Insulin alone or in any combination (N = 2282)	5	2.64	0.57	12.35	5	1.60	0.66	3.88	14	0.85	0.38	1.90	14	0.84	0.50	1.43	3	0.97	0.16	5.72	3	1.69	0.54	5.33
2.2 Insulin alone (N = 1332)	3	3.29	0.55	19.80	3	1.68	0.58	5.27	8	0.83	0.31	2.36	8	0.86	0.43	1.73	2	1.42	0.18	11.16	2	2.00	0.50	8.12
2.3 Untreated (diet only) (N = 4077)	5	1.00	-	-	5	0.94	0.39	2.28	30	1.00	-	-	30	1.05	0.73	1.50	6	1.00	-	-	6	1.97	0.86	4.46