Characteristics of NYC public schools responding to the web-based survey, according to whether the school had a Flu Response Team.

aParticipating schools compared with nonparticipating schools.bChi-square test.§Satterthwaite T-test of Mean Difference, two-sided exact Pr>|t|.*A federal program that provides financial assistance to Local Education Agencies and schools with high numbers or high percentages of children in families with household income below federal poverty levels/// (or something to define ‘poor’.†The percentage of public schools where ≥75% of students are eligible for free or reduced price lunch.¶Proportion of each ethnic group in schools.