Psychometric properties of the Centers for Disease Control and Prevention Health-Related Quality of Life (CDC HRQOL) items in adults with arthritis

Table 2 Factor loadings for the CDC HRQOL for the overall sample of adults with arthritis

Item # and Item phrasing	Unrotated Factor Loadings		Rotated Factor Loadings (Promax)
	Factor 1	Factor 2	Factor 1	Factor 2
5. pain limited activities (# days)^a	0.77	-0.37	0.86	-0.01
2. physical health not good (# days)^a	0.80	-0.34	0.84	0.04
1. General Health Rating	0.74	-0.35	0.82	0.00
9. very healthy/full of energy (# days)^a	-0.66	0.29	-0.71	-0.02
4. physical and/or mental health limited usual activities (# days)^a	0.78	-0.21	0.70	0.17
8. not enough rest (# days)^c	0.69	0.06	0.37	0.41
6. sad, blue or depressed (# days)^b	0.80	0.50	-0.01	0.94
3. mental health not good (# days)^b	0.79	0.47	0.01	0.91
7. worried, tense, or anxious (# days)^b	0.79	0.45	0.04	0.88

ISSN: 1477-7525