A total of 301 randomly selo c tod elumentary scbool chllaren f rDm kG~uuene Th ur cse l oll slsillenGary SChDOl A,ddis ilba oa , Nu L'0 tlAaflHhJ for Gr a CiJooa in June - July, 1986 , and a motcllud case-control st udy was carried out ~o taSG ~~U JsSO Cia~lon D~~uo~n the occurrance of GraC!1lJma and somu i'isk faco Drs i n the home environmutlt of the: studUIlIiS . Casas wuru all tboso !;I;t ud81lts dia ~ llosucJ to Ui?VO aotivu traohoma , match ~ d with tlOn-tr8ouomatous s Gud Qn~s Dy aso , sox, and ,j r vdo . Thul'o ,7as no sic nificant d i ff ~ r c ncu ill tba [JruvCllenco fat o ~ f traclloma bll t l/Utlll males illl0 fomal os ilmOtlG thu stud'lnts . How<lve r , thu [Jr uvaloncCl ratu of active tracnoma amonG tho stud unts ducroasud sic;nificantly '.;ith Cl 1;U ' "llOne various risK factors .. , studiud in the homu unvironmutlt of DOGh casus and ~ontrol . 3 rou[Js , tractloma ~ as sic nificantly moru pr tlva1 0nG amonc tbo fauill ~s of c~sus than amons tbos~ of controls . Also , childr un in thu cOD~rol Group washtld th ~ ir fac~s 81 loast oncu a wuck si~nificantly morc oitu n, tllan tnDSel cbildron lon "nu casu Gl'OU[l . Conc ornin", tho r ust; of tuo risl~ ia CGDrS uudor ttlis study , tbor u was no s i GniAic Bn t association witb thc occurr onCQ of 1raCUDoa.