Table 2

Daily changes in indoor AH associated with changes in outdoor AH
Outdoor AH Outdoor Temperature Indoor Temperature
Model A* 0.51 [0.48, 0.54]
Model B* 0.50 [0.48, 0.52] -0.02 [-0.04, -0.002]
Model C* 0.48 [0.39, 0.57] -0.05 [-0.07, -0.02] 0.36 [0.27, 0.44]
1 SD 1.86 mb 4.89°C 0.91°C

AH, absolute humidity; ARCH, auto-regressive conditional heteroskedasticity.

*The regression coefficient shows the increase in average indoor AH (mb) associated with a 1 mb increase in outdoor AH.

ARCH model association between indoor absolute humidity (mb) and outdoor absolute humidity with and without adjustments for outdoor and indoor temperature from January to early March at 3-hour time intervals, 2011; Models A, B, C adjusted for differences by school and outdoor AH, Model B, C adjusted for outdoor temperature, Model C adjusted for indoor temperature; All coefficients statistically significant with p < .001.

Koep et al.

Koep et al. BMC Infectious Diseases 2013 13:71   doi:10.1186/1471-2334-13-71

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