Prevalence of visual impairment, cataract surgery and awareness of cataract and glaucoma in Bhaktapur district of Nepal: The Bhaktapur Glaucoma Study

Table 5 Cataract blindness (VA < 3/60) and cataract surgery prevalence by age, sex and literacy.

				Cataract operated
Age	No examined	Never operated cataract blind		All operated		Presumed blind		Cataract blindness burden		% Surgical coverage
		No	Prevalence	No	Prevalence	No	Prevalence	No	Prevalence	No
40-49	1481	0	0.00	3	0.20	2	0.13	2	0.13	100
50-59	1089	4	0.37	19	1.74 ⁱ	14	1.28	18	1.65 ^a	100
60-69	835	11	1.32	37	4.43 ⁱⁱ	19	2.27	30	3.59 ^b	94.4
70-79	477	21	4.40	66	13.84 ⁱⁱⁱ	41	8.59	62	13.00 ^c	85.3
>80	97	11	11.34	26	26.80 ^iv	19	19.59	30	30.92 ^d	87.5
Sex
Male	1811	23	1.27	63	3.48	35	1.93	58	3.20	85.3
Female	2168	24	1.10	88	4.06	60	2.77	84	3.87	93.9
Education
Literate	1860	20	1.07	75	4.03	45	2.42	65	3.49	85.71
Illiterate	2119	27	1.27	76	3.59	50	2.36	77	3.63	95.12
All	3979	47	1.18	151	3.79	95	2.39	142	3.57	90.36

ⁱ Adjusted odds ratio with 95% C.I. versus age 40 - 49: 8.79 (2.59 - 29.78)
ⁱⁱ Adjusted odds ratio with 95% C.I. versus age 40 - 49: 23.22 (7.14 - 75.58)
ⁱⁱⁱ Adjusted odds ratio with 95% C.I. versus age 40 - 49: 79.47 (24.85 - 254.09)
^iv Adjusted odds ratio with 95% C.I. versus age 40 - 49: 182.67 (53.97 - 618.17)
^a Adjusted odds ratio with 95% C.I. versus age 40 - 49: 12.54 (2.90 - 54.18)
^b Adjusted odds ratio with 95% C.I. versus age 40 - 49: 28.02 (6.68 - 117.58)
^c Adjusted odds ratio with 95% C.I. versus age 40 - 49: 111.61 (27.18 - 458.27)
^d Adjusted odds ratio with 95% C.I. versus age 40 - 49: 333.54 (78.04 - 1425.51)

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