Table 4. Circumstances of the experience in the Non-Drug, Psilocybin, LSD, Ayahuasca, and DMT groups1,2.
| Non-Drug | Psilocybin | LSD | Ayahuasca | DMT | |
|---|---|---|---|---|---|
| n = 933 | n = 766 | n = 904 | n = 282 | n = 307 | |
| Duration of Experience (%) | |||||
| Five minutes or less | 40% | 5% a,b | 8% a,c | 2% b | 16% c |
| Between 5 minutes and 1 hour | 29% | 23%a | 20%a | 21%a | 61% b |
| 1 hour or more | 31% | 71% a | 72% a | 77% a | 23%b |
| Medically unconscious at any time during the experience (i.e., completely unresponsive to verbal or physical stimuli) (%) | 36% | 5% a | 9% a | 7% a | 31%b |
| Clinically dead (i.e., cessation of breath, heart function) (%) | 21% | <1% a | <1% a | <1% a | <1% a |
| Medical professional confirmed to be clinically dead (%) | 11% | 0% a | 0% a | 0% a | 0% a |
| Imminent Danger (%) | |||||
| Life was in danger and believed it to be at the time | 28% | 1% a,b | 3% a | 2% a,b | 0% b |
| Life was in danger but did not believe it to be at the time | 19% | 1% a | 1% a | 0% a | 0% a |
| Life was not in danger but believed it to be at the time | 6% | 20%a | 21%a | 22% a | 19%a |
| Life was not in danger and did not believe it to be at the time | 48% | 78% a | 75% a | 76% a | 81% a |
1 Comparisons between drug groups were made using general linear model with a logit link and Type III sums of squares including covariates as described in text; pairwise comparisons were adjusted using the Bonferroni method to control for Type I error rate.
2 Bold font = significant difference from the Non-Drug Group (p≤0.001); drug groups not sharing a common letter are significantly different (p≤0.001).