Table 3.

Incidence rate of atrial fibrillation per 1000 person-years

Men
Age	Without diabetes				With diabetes
	IR	95% CI	Cases	Person-time	IR	95% CI	Cases	Person-time	IRR	(95% CI)
40–54	1.00	0.84–1.18	135	134,774.42	1.88	0.95–3.35	10	5327.89	1.87	0.99- 3.56
55–64	4.34	3.87–4.85	301	69,410.39	5.61	4.08–7.54	41	7307.20	1.30	0.93–1.79
65–74	9.45	8.55–10.42	391	41,381.03	12.58	10.40–15.08	112	8904.65	1.33	1.08–1.64
≥ 75	20.84	18.66–23.20	324	15,549.86	20.21	16.50–24.52	98	4849.16	0.97	0.77–1.22

Women
Age	Without diabetes				With diabetes
	IR	95% CI	Cases	Person-time	IR	95% CI	Cases	Person-time	IRR	95% CI
40–54	0.54	0.43–0.68	72	132,156.27	1.13	0.41–2.50	5	4430.37	2.07	0.84–5.19
55–64	1.76	1.48–2.09	129	73,165.99	3.56	2.31–5.25	23	6466.80	2.02	1.30–3.14
65–74	6.55	5.86–7.29	325	49,643.81	9.60	7.64–11.92	78	8122.77	1.47	1.15–1.89
≥ 75	14.30	12.77–15.97	308	21,538.37	13.63	10.74–17.06	72	5283.53	0.95	0.74–1.23

Men and women
Age	Without diabetes				With diabetes
	IR	95% CI	Cases	Person-time	IR	95% CI	Cases	Person-time	IRR	95% CI
≤ 54	0.78	6.75–8.87	207	266,930.69	1.54	0.89–2.8	15	9758.27	1.98	1.17–3.35
55–64	3.01	2.74–3.31	430	142,676.38	4.65	3.61–5.90	64	13,773.99	1.54	1.19–2.01
65–74	7.87	7.31–8.46	716	91,024.84	11.16	9.67–12.83	190	17,027.42	1.42	1.21–1.67
≥ 75	17.04	15.75–18.41	632	37,088.23	16.78	14.39–19.45	170	10,132.69	0.98	0.83–1.17

CI: confidence interval; IR: incidence rate; IRR: incidence rate ratio

Incidence rate per 1000 person-years. Person-time in years