. Author manuscript; available in PMC: 2011 Sep 27.

Published in final edited form as: Arch Phys Med Rehabil. 2009 Oct;90(10):1708–1715. doi: 10.1016/j.apmr.2009.04.020

Table 5.

Model fit statistics.

Model	Description	Pseudo-R²	Change	C-statistics	Change
1	Injury severity only	0.016	ND	0.578	ND
2	Base model	0.121	0.105	0.730	0.152
3	Intervening model [1]	0.136	0.120	0.760	0.182
4	Intervening model [2]	0.161	0.144	0.776	0.198
5	Final model	0.179	0.163	0.784	0.206
6	Maximum model	0.178	0.162	0.788	0.210

Abbreviation: ND, no data to enter into cell.

1. Five category breakdown (C1–C4, C5-8, non-cervical, and so forth)

2. Add core biographic variables includes white, men, age at injury, and years since injury

3. Add psychologic and environmental factors to the base model

4. Add behavior factors to Intervening model [1]

5. The final model as identified on Table 3

6. The maximum model consisted all variables of interest in addition to the base model