Susanne Ragnarsson, Klara Johansson, Erik Bergström, Gunnar Sjöberg, Anna-Karin Hurtig, Solveig Petersen
Perceived problems with academic achievement in school-aged children with recurrent pain - a longitudinal study
Scandinavian journal of public health
using multilevel approach estimated effects classroom ventilation rate temperature academic achievement analysis based measurement data 70 elementary school district 140 fifth grade classrooms southwestern united states student level data n 3109 socioeconomic variables standardized test scores statistically significant association ventilation rates mathematics scores stronger six classrooms high ventilation rates indicated outliers filtered 71 ls per person association remained significant prior year test scores included model resulting less unexplained variability students mean mathematics scores average 2286 points increased eleven points 05 per liter per second per person increase ventilation rate within range 0971 ls per person estimated effect size 74 points additional increase 1213 points per 1c decrease temperature within observed range 2025c estimated effect size 67 points effects similar magnitude higher variability observed reading science scores conclusion maintaining adequate ventilation thermal comfort classrooms could significantly improve academic achievement students