Table 2. Incidence and relative risks of acute pancreatitis estimated by gender, age for type 2 DM and non-DM cohorts: cohort substudy.

	Type 2 DM cohort				Non-DM cohort
Strata	Number of subjects	Incident cases	Patient-years at risk	Incidence rate per 1,000 patient-years [95% CI]	Number of subjects	Incident cases	Patient-years at risk	Incidence rate per 1,000 patient-years [95% CI]	Crude rate ratio: Type 2 DM vs. non-DM [95% CI]
All subjects	14,707	117	24,615	4.75 [3.97, 5.70]	186,032	356	215,782	1.65 [1.49, 1.83]	2.88 [2.34, 3.55]
Gender
Female	5,670	39	9,122	4.28 [3.12, 5.85]	105,417	172	127,319	1.35 [1.16, 1.57]	3.16 [2.24, 4.48]
Male	9,037	78	15,493	5.03 [4.03, 6.29]	80,615	184	88,463	2.08 [1.80, 2.40]	2.42 [1.86, 3.15]
Age (years)
18–39	610	1	1,035	0.97 [0.14, 6.86]	50,627	51	44,183	1.15 [0.88, 1.52]	0.84 [0.12, 6.06]
40–49	1,091	3	2,019	1.49 [0.48, 4.61]	22,957	31	24,007	1.29 [0.91, 1.84]	1.15 [0.35, 3.76]
50–59	2,682	15	5,318	2.82 [1.70, 4.68]	28,372	55	36,495	1.51 [1.16, 1.96]	1.87 [1.06, 3.31]
60–69	4,253	34	8,182	4.16 [2.97, 5.82]	34,187	75	48,505	1.55 [1.23, 1.94]	2.69 [1.79, 4.03]
70–79	3,966	41	5,891	6.96 [5.12, 9.45]	30,177	81	41,405	1.96 [1.57, 2.43]	3.56 [2.44, 5.18]
≥80	2,105	23	2,170	10.60 [7.04, 15.95]	19,712	63	21,186	2.97 [2.32, 3.81]	3.56 [2.21, 5.75]

DM, diabetes mellitus.