Table 2.

Covariate Analyse

	Low Psych	High Psych
Variable	(n=21)	(n=19)	Sig
Expectations
Acupuncture session	2.9	3.7	NS
Placebo session	2.7	4.1	p=.03
*at session start patients rated expected pain level after the treatment (0–10); lower value=greater expectations
Group X Treatment X Acup. Expectations Interaction			p=.002 (F=11.3)
Group X Treatment X Plac. Expectations Interaction			NS
Perceived treatment/ efectiveness of the blind.
% guessing correctly at end of session
Acupuncture session	90	89	NS
Placebo session	41	59	NS
Randomization order			NS
Random Order X Perceived Treatment Interaction
**if the patient had acupuncture at the 1st or 2nd session, did that influence whether they guessed correctly?
Acupuncture session			NS
Placebo session			NS