Table 10. Results of Pearson correlation tests for inter-item and item-total correlations of pain intensity.

	Item 1	Item 2	Item 3	Item 4	Item 5	Item 6	Global subscale
1. Bleeding episodes	1						0.586***
2. During physical efforts and/or movement	0.489***	1					0.828***
3. Using stairs	0.391***	0.693***	1				0.866***
4. After resting or staying still	0.314**	0.553***	0.688***	1			0.822***
5. During rest, sitting or lying down	0.325**	0.532***	0.543***	0.679***	1		0.755***
6. Accidental or “wrong” movements	0.480***	0.669***	0.693***	0.595***	0.535***	1	0.852***

** p≤0.01

***p≤0.001