F Transl &ci =/ "3$/ +5.+>76+GFT&.+555+<6, Hpril ;4, ;5+7 Hnthon y  Mawson, Hzad  ( huiyan, ( rian " ay , (inu Fa cob "epartment of %pidemiology and (iostatistics, &chool of !ublic :ealth, Fackson &tate Eniversity, Fackson, M& =;+=, E&H )ational :ome %ducation esearch $nstitute, !3 (o +==, &alem, 3 7=5, E&H Hbstract 'accinations have prevented millions of infectious illnesses, hospitalizations and deaths among E.&. children, yet the long-term health outcomes of the vaccination schedule remain uncertain. &tudies have been recommended by the E.&. $nstitute of Medicine to address this 8uestion. This study aimed +2 to compare vaccinated and unvaccinated children on a broad range of health outcomes, and ;2 to determine whether an association found between vaccination and neurodevelopmental disorders 1)""2, if any, remained significant after ad9ustment for other measured factors. H cross-sectional study of mothers of children educated at home was carried out in collaboration with homeschool organizations in four E.&. states/ #lorida, Iouisiana, Mississippi and 3regon. Mothers were asked to complete an anonymous online 8uestionnaire on their 6- to +;-year-old biological children with respect to pregnancy-related factors, birth history, vaccinations, physician-diagnosed illnesses, medications used, and health services. )"", a derived diagnostic measure, was defined as having one or more of the following three closely-related diagnoses/ a learning disability, Httention "eficient :yperactivity "isorder, and Hutism &pectrum "isorder. H convenience sample of 666 children was obtained, of which ;6+ 1=?2 were unvaccinated. The vaccinated were less likely than the unvaccinated to have been diagnosed with chickenpo and pertussis, but more likely to have been diagnosed with pneumonia, otitis media, allergies and )"". Hfter ad9ustment, vaccination, male gender, and preterm birth remained significantly associated with )"". :owever, in a final ad9usted model with interaction, vaccination but not preterm birth remained associated with )"", while the interaction of preterm birth and vaccination was associated with a 6.6-fold increased odds of )"" 1>? *$/ ;.<, +>.>2.

4n conclusion, $accinate# homeschool chil#ren !ere "oun# to ha$e a higher rate o" allergies an# 66 than un$accinate# homeschool chil#ren(