Table 8

Factors predictive of symptoms in building E

Symptom Environmental factor p Value
Stuffy noseReduced high frequency noise<0.001
Increased low frequency noise=0.01
Particulates (10 μm)<0.001
Runny noseAir velocity<0.01
Air turbulence<0.001
Radiant temperature=0.01
Increased low frequency noise=0.001
Reduced negative ions<0.001
Particulates (0.3–0.5 μm)<0.001
Itchy eyesThermal comfort index<0.01
Dry bulb temperature<0.01
Particulates (10 μm)<0.01
Dry throatFloor to ankle temperature gradient<0.01
Radient temperature=0.01
Increased CO2 concentrations=0.01
Reduced negative ions<0.01
Particulates (10 μm)<0.01
HeadacheThermal comfort index (PPD)<0.01
Reduced dry bulb temperature<0.01
Increased low frequency noise<0.01
Reduced negative ions=0.01
Particulates (10 μm)<0.001
LethargyReduced high frequency noise<0.01
Increased low frequency noise=0.01
Particulates (5–10 μm)=0.01
Dry skinRadiant temperature<0.01
Increased background noise<0.01