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Vitiligo prevalence study in Shaanxi Province, China
Tao Lu1, Tianwen Gao, Anhui Wang
1Center of Dermatology of Chinese PLA, Xijing Hospital, Department of Epidemiology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, Shaanxi, China. lutaode2000@yahoo.com.cn [corrected]
International Journal of Dermatology
|January 12, 2007
Summary
This study found the prevalence of vitiligo in Shaanxi Province, China, to be 0.093%. This is lower than previously estimated, with no significant differences between demographics.
Area of Science:
- Dermatology
- Epidemiology
- Public Health
Background:
- Recent studies suggest the widely cited vitiligo prevalence of 1-2% may be an overestimation.
- Population-based surveys are crucial for accurate epidemiological data.
Purpose of the Study:
- To determine the precise prevalence of vitiligo in Shaanxi Province, China.
- To update epidemiological data on vitiligo in a specific Chinese population.
Main Methods:
- A stratified four-stage cluster sampling method was employed, surveying approximately one-thousandth of Shaanxi Province's population.
- A door-to-door survey was conducted in 180 investigation units, collecting data via questionnaires.
- Professional dermatologists verified all reported and suspected vitiligo cases.
Main Results:
- The survey included 42,833 individuals, representative of Shaanxi Province's demographics.
- A total of 40 confirmed vitiligo cases were identified after verification.
- The study found 17 women and 23 men with vitiligo, with 11 urban and 29 rural residents.
Conclusions:
- The calculated prevalence of vitiligo in Shaanxi Province is 0.093% (95% CI, 0.067-0.127%).
- No statistically significant differences in prevalence were observed between males and females.
- Vitiligo prevalence did not significantly differ between urban and rural populations in this region.
