Table 1b.

Incidence rates of cataract (surgery only) in patients newly diagnosed with diabetes mellitus and in diabetes-free individuals (matched to diabetes-free patients on age, sex, year of diabetes diagnosis) and incidence rate ratios (stratified by sex and age)

	Patients with diabetes				Diabetes-free comparison group
	Person-years	Cases	IR per 1000 person-years	95% CI	Person-years	Cases	IR per 1000 person-years	95% CI	IRR	95% CI
All	380090.5	4699	12.4	12.0–12.7	289259.9	2289	7.9	7.6–8.2	1.6	1.5–1.6
Men	203269.4	1996	9.8	9.4–10.3	150734.5	913	6.1	5.7–6.4	1.6	1.5–1.8
Women	176820.9	2703	15.3	14.7–15.9	138525.4	1376	9.9	9.4–10.5	1.5	1.4–1.6
Age 40–44	11343.3	12	1.1	0.5–1.7	8698.1	2	0.2	0.0–0.5	4.6	1.0–20.6
Age 45–49	32796.2	44	1.3	0.9–1.7	24153.4	7	0.3	0.1–0.5	4.6	2.1–10.3
Age 50–54	48588.2	150	3.1	2.6–3.6	35271.8	19	0.5	0.3–0.8	5.7	3.5–9.2
Age 55–59	57183.9	246	4.3	3.8–4.8	42175.4	89	2.1	1.7–2.5	2.0	1.6–2.6
Age 60–64	61635.6	402	6.5	5.9–7.2	45651.3	132	2.9	2.4–3.4	2.3	1.9–2.8
Age 65–69	58201.5	624	10.7	9.9–11.6	43727.6	271	6.2	5.5–6.9	1.7	1.5–2.0
Age 70–74	47662.3	930	19.5	18.3–20.8	37014.7	438	11.8	10.7–12.9	1.6	1.5–1.8
Age 75–79	34797.3	1 085	31.2	29.3–33.0	27983.3	579	20.7	19.0–22.4	1.5	1.4–1.7
Age 80–84	18739.6	791	42.2	39.3–45.2	16114.6	468	29.0	26.4–31.7	1.5	1.3–1.6
Age 85–89	7172.8	333	46.4	41.4–51.4	6448.0	237	36.8	32.1–41.4	1.3	1.1–1.5
Age ≥90	1969.7	82	41.6	32.6–50.6	2021.8	47	23.2	16.6–29.9	1.8	1.3–2.6

CI Confidence interval, IR Incidence rate, IRR Incidence rate ratio