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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Atmos Environ (1994). 2012 Jun 6;59:578–586. doi: 10.1016/j.atmosenv.2012.05.021

Table 2.

AER under OA Model Coefficients, Confidence Intervals, and P Values

GEE Estimate Std.err Wald Pr(>|W|) Confidence Intervals
2.5% 97.5%
Intercept 4.2 0.24 295 < 2e-16 3.7 0.7
fan strength 1.88 0.14 170 < 2e-16 1.6 0.43
fan strength2 -0.92 0.11 70 < 2e-16 -1.1 0.33
speed = 0 -0.32 0.09 11 0.0007 -0.50 0.28
speed > 0 (miles h-1) 0.0048 0.0013 14 0.0002 0.0023 0.0038
vol (ft3) -0.0073 0.0019 15 0.0001 -0.011 0.0056
fan strength at speed = 0 0.40 0.26 2.5 0.12 -0.10 0.76
fan strength2 at speed = 0 0.13 0.20 0.45 0.50 -0.26 0.59
MLR Estimate Std. Error t value Pr(>|t|) Confidence Intervals
2.5% 97.5%
Intercept 4.2 0.14 29 < 2e-16 3.9 4.5
fan strength 2.3 0.40 5.7 0 1.5 3.1
fan strength2 -1.3 0.36 -3.7 0.00040 -2.1 -0.61
speed = 0 -0.34 0.15 -2.3 0.023 -0.63 -0.047
speed > 0 (miles h-1) 0.0043 0.0014 3.0 0.0028 0.0015 0.0071
vol (ft3) -0.0074 0.00080 -8.8 0 -0.0090 -0.0057
fan strength at speed = 0 0.077 0.56 0.14 0.89 -1.0 1.2
fan strength2 at speed = 0 0.45 0.49 0.91 0.36 -0.5 1.4