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Cluster-randomized controlled trial of the effects of free glasses on purchase of children's glasses in China: The PRICE (Potentiating Rural Investment in Children's Eyecare) study
Wang, Xiuqin1,2,3; Congdon, Nathan1,2,4,5; Ma, Yue6; Hu, Min7; Zhou, Yuan7; Liao, Weiqi1,2; Jin, Ling1,2; Xiao, Baixiang1,2; Wu, Xiaoyi1,2; Ni, Ming8; Yi, Hongmei9; Huang, Yiwen8; Varga, Beatrice10; Zhang, Hong11; Cun, Yongkang12; Li, Xianshun13; Yang, Luhua14; Liang, Chaoguang15; Huang, Wan8; Rozelle, Scott16; Ma, Xiaochen17
2017-11-21
Source PublicationPLOS ONE
ISSN1932-6203
Volume12Issue:11Pages:14
Corresponding AuthorMa, Xiaochen(mxc4068@gmail.com)
AbstractBackground Offering free glasses can be important to increase children's wear. We sought to assess whether "Upgrade glasses" could avoid reduced glasses sales when offering free glasses to children in China. Methods In this cluster-randomized, controlled trial, children with uncorrected visual acuity (VA)< = 6/12 in either eye correctable to >6/12 in both eyes at 138 randomly-selected primary schools in 9 counties in Guangdong and Yunnan provinces, China, were randomized by school to one of four groups: glasses prescription only (Control); Free Glasses; Free Glasses + offer of $15 Upgrade Glasses; Free Glasses + offer of $30 Upgrade Glasses. Spectacle purchase (main outcome) was assessed 6 months after randomization. Results Among 10,234 children screened, 882 (8.62%, mean age 10.6 years, 45.5% boys) were eligible and randomized: 257 (29.1%) at 37 schools to Control; 253 (28.7%) at 32 schools to Free Glasses; 187 (21.2%) at 31 schools to Free Glasses + $15 Upgrade; and 185 (21.0%) at 27 schools to Free Glasses +$30 Upgrade. Baseline ownership among these children needing glasses was 11.8% (104/882), and 867 (98.3%) children completed follow-up. Glasses purchase was significantly less likely when free glasses were given: Control: 59/250 = 23.6%; Free glasses: 32/252 = 12.7%, P = 0.010. Offering Upgrade Glasses eliminated this difference: Free + $15 Upgrade: 39/183 = 21.3%, multiple regression relative risk (RR) 0.90 (0.56-1.43), P = 0.65; Free + $30 Upgrade: 38/182 = 20.9%, RR 0.91 (0.59, 1.42), P = 0.69. Conclusions Upgrade glasses can prevent reductions in glasses purchase when free spectacles are provided, providing important program income.
DOI10.1371/journal.pone.0187808
WOS KeywordPEDIATRIC-REFRACTIVE-ERROR ; SECONDARY-SCHOOL STUDENTS ; STUDY X-PRES ; VISUAL IMPAIRMENT ; AGED CHILDREN ; WESTERN CHINA ; SPECTACLE USE ; SEE-WELL ; PREVALENCE
Indexed BySCI
Language英语
Funding ProjectZhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Division of Preventive Ophthalmology, Sun Yat-sen University, Guangzhou, China ; Fred Hollows Foundation ; Orbis International ; US Agency for International Development Children Blindness Program[PGRD-14-0001-03] ; Luxottica-China (Shanghai) ; Essilor-China (Shanghai) ; Chinese government's Thousand Man Plan[83000-3281201] ; Ulverscroft Foundation
Funding OrganizationZhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Division of Preventive Ophthalmology, Sun Yat-sen University, Guangzhou, China ; Fred Hollows Foundation ; Orbis International ; US Agency for International Development Children Blindness Program ; Luxottica-China (Shanghai) ; Essilor-China (Shanghai) ; Chinese government's Thousand Man Plan ; Ulverscroft Foundation
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000415987000020
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/56739
Collection中国科学院地理科学与资源研究所
Corresponding AuthorMa, Xiaochen
Affiliation1.Sun Yat Sen Univ, Zhongshan Ophthalm Ctr, State Key Lab Ophthalmol, Guangzhou, Guangdong, Peoples R China
2.Sun Yat Sen Univ, Zhongshan Ophthalm Ctr, Div Prevent Ophthalmol, Guangzhou, Guangdong, Peoples R China
3.Guangdong Med Univ, Affiliated Hosp, Zhanjiang, Guangdong, Peoples R China
4.Orbis Int, New York, NY USA
5.Queens Univ Belfast, Ctr Publ Hlth, Translat Res Equitable Eyecare, Belfast, Antrim, North Ireland
6.Shaanxi Normal Univ, Ctr Expt Econ Educ, Xian, Shaanxi, Peoples R China
7.Second Peoples Hosp Yunnan Prov, Kunming, Yunnan, Peoples R China
8.Fred Hollows Fdn China, Kunming, Yunnan, Peoples R China
9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Chinese Agr Policy, Beijing, Peoples R China
10.Fred Hollows Fdn Australia, Sydney, NSW, Australia
11.First Peoples Hosp Honghe Prefecture, Kunming, Yunnan, Peoples R China
12.Dehong Prefecture Peoples Hosp, Kunming, Yunnan, Peoples R China
13.Chuxiong Prefecture Peoples Hosp, Kunming, Yunnan, Peoples R China
14.Jianchuan Cty Peoples Hosp, Kunming, Yunnan, Peoples R China
15.First Peoples Hosp Lancang Cty, Kunming, Yunnan, Peoples R China
16.Stanford Univ, Freeman Spogli Inst Int Studies, Palo Alto, CA 94304 USA
17.Peking Univ, China Ctr Hlth Dev Studies, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiuqin,Congdon, Nathan,Ma, Yue,et al. Cluster-randomized controlled trial of the effects of free glasses on purchase of children's glasses in China: The PRICE (Potentiating Rural Investment in Children's Eyecare) study[J]. PLOS ONE,2017,12(11):14.
APA Wang, Xiuqin.,Congdon, Nathan.,Ma, Yue.,Hu, Min.,Zhou, Yuan.,...&Ma, Xiaochen.(2017).Cluster-randomized controlled trial of the effects of free glasses on purchase of children's glasses in China: The PRICE (Potentiating Rural Investment in Children's Eyecare) study.PLOS ONE,12(11),14.
MLA Wang, Xiuqin,et al."Cluster-randomized controlled trial of the effects of free glasses on purchase of children's glasses in China: The PRICE (Potentiating Rural Investment in Children's Eyecare) study".PLOS ONE 12.11(2017):14.
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