Table 6.

Analysis of number of stimuli tolerated – effect of ketamine.

	Ketamine		Placebo		Treatment
	n	lsmean	n	lsmean	effect	95% CI	P value
Left hand	9	28.41	10	16.48	11.92	6.60, 17.25	0.0002
Right hand	9	25.00	10	15.25	9.76	0.58, 18.93	0.0386
Mean hands	9	26.71	10	15.87	10.84	5.22, 16.45	0.0009