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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