Michael A Proschan, Lori E Dodd, Dionne Price
Statistical considerations for a trial of Ebola virus disease therapeutics
Clinical trials (London, England)
statistics obtained japanese government analyzed aim elucidating recent secular trends proportion students poor visual acuity associated factors data proportion students poor visual acuity collected reports school health examination surveys conducted 1979 2012 graphically analyzed detect secular trend collected prefecturelevel data regarding visual acuity body height study time sleeping duration videogaming duration duration exposure sunshine sixthgrade students elementary schools 47 prefectures japan relationship poor visual acuity factors explored performing multiple regression analysis identify important predictors poor visual acuity temporary retarding phase increasing tendency halt growing tendency terms height observed proportion students poor visual acuity poor visual acuity negatively correlated duration exposure sunshine positively correlated body height slightly correlated study time videogaming duration myopia incriminated main cause poor visual acuity results suggest myopia progression would influenced circumstances exposure light