Brooke Allemang, Susan Samuel, Katelyn Greer, Keighley Schofield, Karina Pintson, Megan Patton, Marcela Farias, Kathleen C Sitter, Scott B Patten, Andrew S Mackie, Gina Dimitropoulos
Transition readiness of youth with co-occurring chronic health and mental health conditions: A mixed methods study
Health expectations : an international journal of public participation in health care and health policy
study monitored indoor environmental data 144 classrooms 31 schools midwestern united states two consecutive days every fall winter spring twoyear period 3105 pupils attended classrooms measurements conducted classrooms ventilated mechanical systems recirculation operable exterior windows doors daily absence rate student level demographic data classroom level collected overall mean ventilation rate using outdoor air 55 ls per person corresponding mean carbon dioxide concentrations 2000 ppm mean indoor pm25 36 gm3 annual illnessrelated absence rate classroom level extracted studentlevel absence data regressed measured indoor environmental parameters significant associations found every 1 ls per person increase ventilation rate associated 559 decrease days absences per year corresponds 015 increase annual daily attendance rate every additional 1 gm3 indoor pm25 associated 737 increase days absences per year corresponds 019 decrease annual daily attendance rate relationships significant present results agree previously demonstrated benefits reduced absence rates classroom ventilation improved provide additional evidence potential benefits reducing indoor inhalable particles overall reduced absence rates expected provide socioeconomic benefits benefits academic achievements higher ventilation rates reduced particle levels also contribute reduced health risks including related airborne respiratory pathogens