. Author manuscript; available in PMC: 2012 Mar 15.

Published in final edited form as: Spine (Phila Pa 1976). 2011 Mar 15;36(6):490–494. doi: 10.1097/BRS.0b013e3181d323f3

Table 4.

Comparison of Various Models Predicting the SF-6D

Stepwise Regression Results	R	R²	Adjusted R²	RMSE
NDI Alone	0.81	0.66	0.66	0.055536
NDI plus Neck Pain	0.81	0.66	0.66	0.055470
NDI, Neck Pain, Arm Pain	0.81	0.66	0.66	0.055510