Research Article
A Longitudinal Study of the Reliability of Acupuncture Deqi Sensations in Knee Osteoarthritis
Table 7
Results of principal component analysis with acupuncture mode (real versus sham) included as an additional variable.
| | Variables | Factor 1 | Factor 2 | Factor 3 |
| | Heaviness | .90 | — | — | | Fullness/distension | .88 | — | — | | Deep pressure | .78 | .54 | — | | Cold | .78 | — | — | | Dull pain | .77 | — | — | | Aching | .70 | .485 | .42 | | Soreness | .66 | — | .56 | | Numbness | .64 | .58 | — | | Warmth | .52 | .60 | — | | Sharp pain | .50 | .64 | — | | Throbbing | — | .91 | — | | Tingling | — | .80 | — | | Acupuncture mode (real versus sham) | — | — | .81 |
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