Incidence and Time Trends of Type 2 Diabetes Mellitus among Adults in Zhejiang Province, China, 2007-2017

Table 4

Annual incidence rate of type 2 diabetes, 2007-2017 (per 100,000 person-years).

Characteristic	Year
	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017
Males
Number of cases	11,919	14,291	19,543	24,543	28,544	31,067	33,704	34,683	88,803	84,482	86,050
Person-years	6,151,185	6,221,090	6,289,684	6,375,636	6,578,491	6,702,012.5	6,665,077	6,686,235.5	19,211,085	19,269,113.5	19,392,488.5
Incidence	193.77	229.72	310.72	384.95	433.90	463.55	505.68	518.72	462.25	438.43	443.73
Standardized incidence rate	155.87	180.54	237.37	288.77	317.29	330.99	355.76	360.91	316.11	296.47	296.20
Females
Number of cases	12,823	15,254	19,919	24,719	28,402	30,464	31,688	32,105	80,606	74,001	72,159
Person-years	6,023,793	6,111,332	6,219,344	6,304,557	6,511,975	6,660,241	6,643,162	6,700,593.5	19,167,958.5	19,283,995.5	19,477,780.5
Incidence	212.87	249.60	320.27	392.08	436.15	457.40	477.00	479.14	420.52	383.74	370.47
Standardized incidence rate	174.97	200.01	248.02	297.56	321.86	328.15	334.84	332.46	285.44	255.79	241.31
Overall
Number of cases	24,742	29,545	39,462	49,262	56,946	61,531	65,392	66,788	169,409	158,483	158,209
Person-years	12,174,978	12,332,422	12,509,028	12,680,193	13,090,466	13,362,253.5	13,308,239	13,386,829	38,379,043.5	38,553,109	38,870,269
Incidence	203.22	239.57	315.47	388.50	435.02	460.48	491.36	498.91	441.41	411.08	407.02
Standardized incidence rate	164.85	189.81	242.31	292.69	319.21	329.28	345.12	346.52	300.69	276.05	268.65
Males
20-29 years	10.40	12.81	17.08	23.52	27.94	36.22	40.96	39.00	43.71	42.43	43.43
30-39 years	47.11	57.25	81.84	109.67	125.75	141.62	153.86	161.16	151.84	147.60	158.63
40-49 years	171.79	194.60	269.40	346.72	377.65	391.13	413.96	422.31	375.44	360.04	363.40
50-59 years	339.25	390.97	511.08	590.02	660.78	679.28	770.18	799.61	708.74	652.30	637.36
60-69 years	424.68	529.84	681.90	820.30	927.24	1013.13	1081.74	1085.91	901.14	824.55	805.52
70-79 years	641.43	716.03	879.53	1043.46	1111.61	1086.34	1089.58	1083.89	919.20	881.18	888.76
≥80 years	719.53	760.89	1031.83	1258.40	1216.61	1181.32	1239.86	1167.79	983.33	894.88	888.94
Females
20-29 years	5.74	8.78	10.94	18.70	28.15	29.73	32.54	36.75	35.97	37.96	36.83
30-39 years	31.93	35.26	41.92	55.15	75.90	80.86	79.42	94.80	89.37	86.63	80.94
40-49 years	140.89	159.41	204.82	250.24	266.28	262.31	260.02	272.32	240.47	206.33	196.39
50-59 years	448.60	483.78	565.99	681.81	698.88	706.90	732.28	728.79	642.71	563.98	518.98
60-69 years	586.27	695.49	887.95	1036.62	1155.81	1230.23	1241.90	1180.22	980.42	866.82	802.68
70-79 years	676.70	804.79	1004.25	1213.43	1310.32	1276.60	1300.54	1244.55	1018.55	941.56	911.10
≥80 years	521.87	618.10	817.58	916.95	941.86	989.49	1073.24	1046.54	859.32	798.39	817.04

Age-standardized to the 6th population census in Zhejiang Province, 2010.