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. Author manuscript; available in PMC: 2007 Dec 10.

Published in final edited form as: Headache. 2003 Oct;43(9):950–955. doi: 10.1046/j.1526-4610.2003.03185.x

Table 5.

Hierarchical Forward Multiple Regression Predicting Headache Diary-Recorded Impaired Activity Hours (N = 37)


Dependent Variable	Model F	P	R²	R² Change	df	Predictors	ß	t	P	Partial r
Impaired activity hours	4.531^*	.009	0.227	0.292	3,33	Age	-.147	-0.945	.351	-0.162
						Gender	-.120	-0.773	.445	-0.133
						Duration	.568	3.686^†	.001	0.540

^*

P = .01.

^†

P = .001.