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. 2015 Aug 28;10(8):e0136165. doi: 10.1371/journal.pone.0136165

Table 3. Final model a estimates for mathematics score stratified for three largest ethnic groups b (Hispanic, Caucasian and African American), eligibility to free lunch c , gifted status d , and limited English proficiency e .

Sample Whole Ethnic group Eligibility to free lunch Gifted English
population Hispanic Caucasian African American Free lunch Not eligible No Yes Limited Proficient
N 2951 1717 718 382 1633 1109 2811 298 684 2408
Estimate Estimate Estimate Estimate Estimate Estimate Estimate Estimate Estimate Estimate
95%CI 95%CI 95%CI 95%CI 95%CI 95%CI 95%CI 95%CI 95%CI 95%CI
Ventilation rate 11.2* 9.6 11.3 20.4* 6.7 13.8** 11.2* 15.7* 6.4 11.2*
[l/s per person] 2.0–20.4 -2.2–21.4 -0–22.6 2.1–38.7 -6.3–19.7 4.9–22.8 1.6–20.8 2.9–28.5 -12.9–25.8 1.5–20.9
Indoor T [°C] -12.0 -18.4* -13.8 7.3 -10.3 -12.7 -12.8 2.9 -30.3* -7.1
-24.7–0.6 -(34.1–2.6) -30.5–2.9 -18.2–32.8 -27.0–6.4 -26.2-.8 -26.0-.5 -15.7–21.5 -(55.7–5.0) -20.6–6.3

* p < 0.05

**p< 0.01

*** p<0.001

a Ventilation rates > 7.1 l/s per person filtered

b Final model includes gifted status, limited English proficiency, mobility, eligibility to free or reduced lunch, gender, teachers’ highest degree, and days absent no illness

c Final model includes gifted status, limited English proficiency, ethnic group, mobility, gender, teachers’ highest degree, and days absent no illness

d Final model includes limited English proficiency, ethnic group, mobility, eligibility to free or reduced lunch, gender, teachers’ highest degree, and days absent no illness

e Final model includes gifted status, ethnic group, mobility, eligibility to free or reduced lunch, gender, teachers’ highest degree, and days absent no illness