Table 4.

Unadjusted rates of incident* stroke by age and sex based on the presence/absence of diabetes and gout

Group	Females			Males
Age groups (years)	No. of stroke events	Person-years	Incidence rate (/1000 PY)	No. of stroke events	Person-years	Incidence rate (/1000 PY)
Diabetes and gout
≤ 50	2	507.1	3.94	5	1681.4	2.97
51–60	10	1444.4	6.92	25	2629.4	9.51
61–65	17	1329.1	12.79	21	2094.0	10.03
66–70	31	2960.7	10.47	47	4275.3	10.99
71–75	64	2828.7	22.63	58	3392.6	17.10
76–80	50	2412.2	20.73	40	2195.6	18.22
> 80	82	2543.8	32.23	44	1633.0	26.94
Diabetes only, no gout
≤ 50	95	31,642.3	3.00	66	27,586.3	2.39
51–60	230	37,988.2	6.05	123	29,100.9	4.23
61–65	168	26,836.9	6.26	142	20,078.1	7.07
66–70	295	43,522.1	6.78	235	32,805.9	7.16
71–75	311	35,848.3	8.68	230	22,574.2	10.19
76–80	348	28,436	12.24	189	14,887.7	12.70
> 80	578	27,758.8	20.82	171	10,827.8	15.79
Gout only, no diabetes
≤ 50	4	1175.3	3.40	14	8647.9	1.62
51–60	9	1964.2	4.58	29	7795.3	3.72
61–65	14	2086.0	6.71	34	5772.2	5.89
66–70	44	5705.1	7.71	110	14,624.7	7.52
71–75	71	6019.3	11.80	117	11,595.8	10.09
76–80	85	6172.5	13.77	132	8866.4	14.89
> 80	247	9655.8	25.58	168	8324.6	20.18
No gout or diabetes
≤ 50	181	292,332.0	0.62	104	222,180.0	0.47
51–60	235	120,045.0	1.96	121	75,642.6	1.60
61–65	197	75,185.7	2.62	114	42,652.2	2.67
66–70	443	136,150.0	3.25	303	78,992.1	3.84
71–75	549	114,537.0	4.79	326	61,136.1	5.33
76–80	737	100,637.0	7.32	356	46,603.7	7.64
> 80	1581	138,276.0	11.43	479	44,873.5	10.67

PY Person-years

*Baseline International Classification of Diseases, Ninth Revision, Clinical Modification, codes of 410, 412, 430–438, 428.xx, and 429.2X were removed to find incident stoke rates