Table 2.

Exterior and interior RF power densities (μW/cm²): effect of distance, elevation, and line of sight, Lookout Mountain, Golden, Colorado.

	Quartile
	1	2	3	4	p-Value, 1 vs. 4
Exterior average
Distancea	2.93	1.28	0.38	0.07	< 0.001
Elevation	0.42	0.55	0.32	1.42	< 0.001
Percent visibleb	0.06	0.61	1.58	3.84	< 0.001
Interior house average
Distancea	1.05	0.73	0.21	0.05	< 0.001
Elevation	0.26	0.37	0.17	0.51	0.010
Percent visibleb	0.07	0.38	0.53	1.14	< 0.001

^aAverage distance to 15 major RF (see Table 1) transmitters in area.

^bPercentage of transmitters visible from the residence.