Research Article
Prevalence, Risk Factors, and Causes of Visual Impairment in an Elderly Chinese Uygur Population in Southern Xinjiang
Table 3
Comparisons of the prevalence of VI or blindness with those in other minority population-based studies.
| Location | Current study | Lhasa Eye Study | Xishuangbanna Eye Study | Dali Eye Study | Altay and Tacheng Eye Study | China Nine-Province Survey | China Nine-Province Survey | Xinjiang | Tibet | Yunnan | Yunnan | Xinjiang | Luxi, Yunnan | Changji, Xinjiang |
| Year examined | 2018 | 2010 | 2010 | 2010 | 2015 | 2006–2007 | 2006–2007 | Setting | Rural | Urban and rural | Rural | Rural | Rural | Rural | Rural | Age range (years) | ≥50 | ≥40 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | Ethnicity | Uygur | Zang | Dai | Bai | Han, Kazak, Uygur, and others | Han, Yi, Hui, Zhuang, Miao, Dai | 32 ethnicities | Moderate VI | 12.76% | 10.41% | 23.8% | 24.82% | 3.60% | 11.96% | 7.41% | Severe VI | 2.94% | | 7.40% | 8.13% | 1.20% | 3.88% | 0.61% | Blindness | 3.41% | 8.43% | | | 1.70% | 5.40% | 1.33% |
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∗Mild and moderate VI, <20/40 to >20/200; VI: visual impairment.
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