A Longitudinal Study of the Reliability of Acupuncture Deqi Sensations in Knee Osteoarthritis

Table 8

Results of principal component analysis with the KOOS subscales included as additional variables.

	Pain		Symptom			ADL			Sport			QOL
	1	2	1	2	3	1	2	3	1	2	3	1	2
KOOS	—	.65	—	—	.96	—	—	−.84	—	—	−.74	—	.76
Soreness	.81	—	.76	—	—	.78	—	—	.80	—	—	.83	—
Aching	.87	—	.76	.53	—	.76	.54	—	.76	.54	—	.86	—
Deep pressure	.88	—	.77	.53	—	.72	.57	—	.70	.55	—	.87	—
Heaviness	.95	—	.91	—	—	.84	—	—	.83	—	—	.93	—
Fullness distension	.93	—	.88	—	—	.81	—	—	.79	—	—	.91	—
Tingling	.47	.72	—	.85	—	—	.82	—	—	.81	—	.46	.73
Numbness	.76	—	.62	.55	—	.54	.57	—	.53	.56	—	.78	—
Sharp pain	.74	.50	.56	.70	—	.59	.68	—	.62	.67	—	.73	.51
Dull pain	.87	—	.82	—	—	.82	—	—	.82	—	—	.86	—
Warmth	.59	—	.45	.47	—	—	.55	.52	—	.54	.69	.56	—
Cold	.73	—	.81	—	—	.87	—	—	.88	—	—	.75	—
Throbbing	—	.84	—	.95	—	—	.94	—	—	.92	—	—	.86