Table 2. Incidence of achilles tendon repair per 100,000 person-years, grouped by age.

	Men + Women			Men			Women			Male-to-female ratio
Age group	Person-years	No.	Incidence	Person-years	No.	Incidence	Person-years	No.	Incidence
20–29	1,621,246	100	6.2	744,033	79	10.6	877,213	21	2.4	4.4
30–39	1,995,308	291	14.6	933,571	231	24.7	1,061,737	60	5.7	4.4
40–49	2,045,594	266	13.0	979,545	212	21.6	1,066,049	54	5.1	4.3
50–59	1,640,504	133	0.8	784,364	91	11.6	856,140	42	4.9	2.4
60–69	1,079,408	43	4.0	498,973	29	5.8	580,435	14	2.4	2.4
70–79	646,809	14	2.2	257,650	9	3.5	389,159	5	1.3	2.7
≥80	183,451	3	1.6	55,866	2	3.6	127,585	1	0.8	4.6

No., Number of ATR.