Table 1.

Incidence rate of acute pancreatitis by age and sex in the general population without diabetes and in type 2 diabetic patients (cohort analysis)

Age strata	Person-years	Cases	Incidence rate per 100,000 person-years (95% CI)
General population (n = 200,000)
Women
20–39 years	25,300	5	19.8 (6.4–46.1)
40–59 years	105,655	22	20.8 (13–31.5)
60–69 years	105,824	27	25.5 (16.8–37.1)
70–79 years	116,742	41	35.1 (25.2–47.6)
Overall	353,521	95	26.9 (21.7–32.8)
Men
20–39 years	25,732	5	19.4 (6.3–45.3)
40–59 years	157,241	46	29.3 (21.4–39)
60–69 years	146,542	41	28.0 (20–37.9)
70–79 years	124,416	56	45.0 (34–58.4)
Overall	453,932	148	32.6 (27.5–38.3)
Total	807,453	243	30.1 (26.4–34.1)
Type 2 diabetes (n = 85,525)
Women
20–39 years	5,105	4	78.4 (21.3–200.6)
40–59 years	40,585	21	51.7 (32–79.1)
60–69 years	45,377	27	59.5 (39.2–86.5)
70–79 years	50,057	22	43.9 (27.5–66.5)
Overall	141,125	74	52.4 (41.1–65.8)
Men
20–39 years	4,479	2	44.7 (5.4–161.3)
40–59 years	61,109	35	57.3 (39.8–79.6)
60–69 years	63,979	32	50.0 (34.2–70.6)
70–79 years	55,299	33	59.7 (41–83.8)
Overall	184,865	102	55.2 (44.9–66.9)
Total	325,990	176	54.0 (46.3–62.5)
	IRRdiabetes 1.79 (1.48–2.18)*

*Unadjusted estimate of acute pancreatitis in type 2 diabetic patients compared with the general population.