Table 5.

Mean subscale scores of the Challenging Experiences Questionnaire, and proportion of sample experiencing each subjective effect reported on the CEQ across the total sample and each substance specific subsample.

Challenging Experiences	Total sample n=515a M(SD) or %	Synthetic n=284b M(SD) or %	Toad n=148c M(SD) or %	Plant Extract /Yopo n=83d M(SD) or %	F or X2	Post hoc
Fear Subscale	1.22(1.38)	1.44(1.46)	0.94(1.29)	0.97(1.14)	8.23***	S>T=P
I felt frightened	53	59	43	51	10.52**	S>T
Panic	40	45	33	35	6.78*	S>T
I had the feeling something horrible would happen	41	47	32	35	10.91**	S>T
Experience of fear	63	69	51	63	12.75**	S>T
Anxiousness	49	59	35	42	24.01***	S>T=P
Grief Subscale	0.69(1.00)	0.74(1.06)	0.62(0.85)	0.60(1.03)	1.10
Sadness	30	35	25	24	6.37*	NS
Feelings of despair	20	25	15	12	10.51**	S>T=P
Feelings of grief	26	29	23	21	3.12
I felt like crying	40	38	43	41	1.20
Despair	17	21	12	13	7.16*	S>T
Emotional and/or physical suffering	25	30	21	18	6.55*	NS
Physical Distress	1.15(1.09)	1.28(1.14)	0.89(0.91)	1.13(1.11)	6.40**	S>T
Feeling my body shake/tremble	50	55	39	52	9.49**	S>T
Feeling my heart beating	66	66	59	77	7.81*	T<P
I felt shaky inside	43	47	35	41	8.01*	S>T
I felt my heart beating irregularly or skipping beats	26	28	19	30	4.42
Pressure or weight in my chest or abdomen	40	47	26	40	18.40***	S>T
Insanity	0.85(1.21)	0.98(1.28)	0.71(1.16)	0.69(1.02)	3.24*	NS
Fear that I might lose my mind or go insane	36	38	36	30	1.76
I experienced a decreased sense of sanity	36	42	26	34	11.40**	S>T
I was afraid that the state I was in would last forever	27	29	22	29	2.77
Isolation	0.76(1.23)	0.90(1.28)	0.54(1.10)	0.67(1.22)	4.67*	S>T
Feeling of isolation from people and things	31	36	21	31	10.16**	S>T
Isolation and loneliness	35	43	23	28	18.67***	S>T=P
I felt isolated from everything and everyone	24	29	19	18	7.05*	NS
Death	1.75(1.90)	1.74(1.91)	1.99(1.94)	1.40(1.74)	2.56
I felt as if I was dead or dying	48	48	50	48	0.31
I had the profound experience of my own death	52	51	58	42	5.32
Paranoia	0.18(0.60)	0.20(0.62)	0.16(0.56)	0.18(0.57)	0.18
I had the feeling that people were plotting against me	9	8	8	11	0.64
Experience of antagonism toward people around me	9	11	6	9	2.31
CEQ Total Mean Score	0.95(0.91)	1.06(0.97)	0.80(0.79)	0.82(0.86)	4.93**	S>T

Note. When the standard deviation is greater than the mean the data is skewed do to a large proportion of zeros.

^*p < 0.05;

^**p < 0.01;

^***p < 0.001;

Abbreviations: S = Synthetic/Chemical; T = Toad Venom; P = Plant Extract/Yopo

^arange is 511-515

^brange is 282-284

^crange is 144-148

^drange is 82-83