Short-term effects of ambient ozone on stroke risk in South Carolina

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dc.contributor.advisorPuett, Robin Cen_US
dc.contributor.authorMontresor-Lopez, Jessica Anneen_US
dc.contributor.departmentMaryland Institute for Applied Environmental Healthen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2013-10-10T05:34:54Z
dc.date.available2013-10-10T05:34:54Z
dc.date.issued2013en_US
dc.description.abstractRecent reports have suggested that exposure to ozone is associated with stroke events; however, findings have been inconsistent. Utilizing a case-crossover study design, we explored the association between acute ozone exposure (maximum 8-hour daily average) and risk of stroke hospitalization among South Carolina residents and effect modification by race and gender. For total stroke (ischemic and hemorrhagic combined), a 10 ppb increase in ozone exposure on the day of hospitalization was associated with an increased risk of stroke hospitalization (OR: 1.08; 95% CI, 1.06, 1.11). Effects were similar for other lag days; however, the association was strongest for lag days 0-6 (OR: 1.20; 95% CIs 1.16, 1.24). We observed subtle differences in total stroke risk by gender, with females having a slightly lower risk than males, although CIs overlapped considerably. For hemorrhagic stroke, there was evidence of effect modification by race for all time periods of ozone exposure considered.en_US
dc.identifier.urihttp://hdl.handle.net/1903/14657
dc.subject.pqcontrolledEnvironmental healthen_US
dc.subject.pquncontrolledair pollutionen_US
dc.subject.pquncontrolledozoneen_US
dc.subject.pquncontrolledstrokeen_US
dc.titleShort-term effects of ambient ozone on stroke risk in South Carolinaen_US
dc.typeThesisen_US

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