Ethnic variation in prevalence, self-reported barriers and outcome of cataract surgery in a rural population in southwestern China: the Yunnan minority eye study

Table 4 Postoperative and unoperated persons with cataract-related severe visual impairment or blindness by ethnicity, age, gender, and education

Variables	Examined	Cataract-operated persons				Unopreted persons		Cataract social burdon		Cataract surgical coverage (%)
Variables	Examined	All operated		Presumed severe visual impairment or blindness^ac		Cataract severe visual impairment or blindness^a		Cataract social burdon
	No.	No.	Prevalence^b	No.	Prevalence^b	No.	Prevalence^b	No	Prevalence^b
Ethnicity
Han	2205	142	6.4	97	4.4	117	5.3	214	9.7	45.3
Bai	2133	99	4.6	76	3.6	68	3.2	144	6.8	52.8
Yi	2208	154	7.0	103	4.7	57	2.6	160	7.2	64.4
Age(years)
50–59	2117	26	1.2	15	0.7	8	0.4	23	1.1	65.2
60–69	2344	96	4.1	63	2.7	36	1.5	99	4.2	63.6
70–79	1652	196	11.9	133	8.1	123	7.4	256	15.5	52.0
80+	433	77	17.8	65	15.0	75	17.3	140	32.3	46.4
Gender
Male	2603	141	5.4	93	3.6	86	3.3	179	6.9	52.0
Female	3943	254	6.4	183	4.6	156	4.0	339	8.6	54.0
Education(years)
0	3089	268	8.7	197	6.4	169	5.5	366	11.8	53.8
1–6	2373	90	3.8	59	2.5	65	2.7	124	5.2	47.6
> 6	1084	37	3.4	20	1.8	8	0.7	28	2.6	71.4
Total	6546	395	6.0	276	4.2	242	3.7	518	7.9	53.3

^aVisual acuity < 20/200
^bPrevalence per 100 examined participants
^cIncludes all bilaterally operated persons and unilaterally operated persons with a blind fellow eye

ISSN: 1471-2458