Table 5

Cataract blindness and surgical prevalence by age, sex, literacy and residence

	No examined	Never operated cataract blind		Cataract operated				Cataract blindness burden		Percentage surgical coverage
		Never operated cataract blind		All operated		Presumed blind*		Cataract blindness burden
		No	Prevalence†	No	Prevalence†	No	Prevalence†	No	Prevalence†
Age (years)
50–59	2472	15	0.6	60	2.4	39	1.6	54	2.2	72.2
60–69	1590	43	2.7	130	8.2	98	6.2	141	8.9‡	69.5
≥70	1076	72	6.7	169	15.7	122	11.3	194	18.0§	62.9
Sex
Male	2437	69	2.8	162	6.7	111	4.6	180	7.4	61.7
Female	2701	61	2.3	197	7.3	148	5.5	209	7.7	70.8
Literacy
Literate	648	6	0.9	34	5.3	18	2.8	24	3.7	75.0
Illiterate	4490	124	2.8	325	7.2	241	5.4	365	8.1¶	66.0
Area of residence
Plain	2661	76	2.9	208	7.8	162	6.1	238	8.9	68.1
Hill	2477	54	2.2	151	6.1	97	3.9	151	6.1	64.2
All	5138	130	2.5	359	7.0	259	5.0	389	7.6	66.6

No significant association was found between age, sex, literacy or residence with surgical coverage. Data are given as adjusted odds ratios (95% CIs), obtained by multiple logistic regression.
↵* Includes all bilaterally operated people and unilaterally operated people with a blind fellow eye.
↵† Adjusted prevalence per 100 examined subjects.
↵‡ Adjusted odds ratio versus age 50–59: 4.4 (3.0 to 6.3 (95% CI); p<0.01).
↵§ Adjusted odds ratio versus age 50–59: 9.8 (6.7 to 14.4 (95% CI); p<0.01).
↵¶ Adjusted odds ratio 1.8 (1.2 to 2.6 (95% CI); p<0.01).