Table 3.

Distributions, internal consistency and construct validity of dysmenorrhea catastrophizing and dysmenorrhea interference (n = 100)^a.

	Dysmenorrhea catastrophizing	Dysmenorrhea interference
Means	2.53	2.35
Standard deviation	1.06	0.89
Range	1–4	1–4
Internal consistency: Cronbach's Alpha	0.93	0.92
Correlation with dysmenorrhea frequency	0.56***	0.53***
Correlation with dysmenorrhea duration	0.58***	0.44***
Correlation with dysmenorrhea intensity	0.73***	0.75***
Correlation with dysmenorrhea interference	0.78***	-
Correlation with pain catastrophizing (PCS)	0.30**	0.26*
Correlation with pain interference (BPI-PI)	0.34***	0.42***
Correlation with the number of strategies used for managing dysmenorrhea (0–12)	0.53***	0.53***

PCS, Pain Catastrophizing Scale; BPI, Brief Pain Inventory-Pain Interference.

^*P < 0.05.

^**P < 0.01.

^***P < 0.001.

^a Dysmenorrhea catastrophizing and dysmenorrhea interference were missing for 4 participants.