Table 2.

Statistical results for the pain ratings elicited by the mechanical pinprick stimuli.

ANCOVA
		observed pain ratings with outlier	observed pain ratings without outlier	log-transformed pain ratings with outlier	log-transformed pain ratings without outlier
main effect of SITE		F1,18 = 12.494,	F1,17 = 15.539,	F1,18 = 16.192,	F1,17 = 14.561,
		p < 0.01, partial η2 = 0.410	p < 0.01, partial η2 = 0.478	p < 0.01, partial η2 = 0.474	p < 0.01, partial η2 = 0.461
	DIFFERENCE between sites (mean + 95% CI)	4.125 (1.673–6.577)	3.289 (1.529–5.050)	0.189 (0.090–0.287)	0.189 (0.085–0.294)
main effect of BASELINE		F1,18 = <0.001,	F1,17 = <0.001,	F1,18 = 0.014,	F1,17 = 0.012,
		p = 0.991, partial η2 < 0.001	p = 0.989, partial η2 < 0.001	p = 0.908, partial η2 < 0.01	p = 0.915, partial η2 < 0.01