. Author manuscript; available in PMC: 2014 Apr 1.

Published in final edited form as: Eur Radiol. 2012 Nov 1;23(4):975–984. doi: 10.1007/s00330-012-2683-z

Table 3.

Comparison of the highest correlation coefficients and those at −950 HU.

	Correlation r between LAA% and five-category classification

	Highest	−950 HU	Differences (pct., significance)
RUL	0.649, −935 HU	0.647	0.002 (0.3%, P = 0.476)
RML	0.521, −945 HU	0.520	0.001 (0.2%, P = 0.492)
RLL	0.617, −940 HU	0.615	0.002 (0.3%, P = 0.480)
LUL	0.623, −940 HU	0.622	0.001 (0.2%, P = 0.488)
LLL	0.596, −940 HU	0.594	0.002 (0.3%, P = 0.480)
Upper Lobes	0.649, −940 HU	0.648	0.001 (0.2%, P = 0.488)
Lower Lobes	0.631, −940 HU	0.629	0.002 (0.3%, P = 0.476)
Left Lung	0.657, −945 HU	0.656	0.001 (0.2%, P = 0.488)
Right Lung	0.677, −940 HU	0.675	0.002 (0.3%, P = 0.476)
Whole Lung	0.676, −940 HU	0.674	0.002 (0.3%, P = 0.476)

All P-value < 0.001