关键词: 视力不良, 地域分布, 地理信息系统, 山东省, 儿童青少年

Abstract: Objective To analyze the spatial distribution characteristics of poor vision in children and adolescents in Shandong province, in order to provide scientific basis for the prevention and control of poor vision. Methods Data were from the database of physical examination of 9.39 million children and adolescents aged 6 to 18 years in Shandong province in 2015.The data of left and right eye vision were acquired, and Arc GIS 9.3 software was used to present the spatial distribution of poor vision of 6 to 18-year-old children and adolescents in Shandong province, and their regional distribution characteristics were described. Results The total poor vision rate among children aged 6 to 18 in Shandong province was 38.7% in 2015, and the rates of mildly, moderately and severely poor vision were 7.5%,14.2% and 17.1%, respectively.The rate of poor vision in urban areas was higher than that in rural areas (47.9% vs.33.3%), and it was higher in girls than boys (42.3% vs.35.7%)(P＜0.05).The rate of poor vision in central and northeastern areas of Shandong province was higher, so were the distribution of poor vision in boys and girls.And mildly poor vision showed scattering distribution. Conclusions There are obvious spatial differences on the distribution of poor vision among children and adolescents aged 6 to 18 years in Shandong province.Thus spatial ingredients should be considered when the local departments make relevant strategies

Key words: poor vision, spatial distribution, Arc GIS, Shandong province, children and adolescents