Table 5.

Hierarchical linear regression of age and pain-related anxiety measures on menstrual pain ratings in girls in the Chronic Pain group (n = 41)

Step	Variables Entered	B	SE B	β	R 2 Change
Menstrual pain ratings (Dependent variable)
1					0.01
	Child age	0.44	0.31	0.11
2					0.36**
	Pain catastrophizing	0.18	0.05	0.61**
	Anxiety sensitivity	−0.001	0.09	−0.003

Note. ** P < 0.01.