Table 1.
Summary of Study 1’s sample characteristics.
| Variable | yAPD n = 36 (66.6%) | nAPD n = 18 (33.3%) | Total n = 54 | Statistics (all n.s.) | |
|---|---|---|---|---|---|
| Demographics | |||||
| Age | 38.1 ± 7.5 | 39.4 ± 10.4 | 38.5 ± 8.6 | U = 331 | |
| Gender | Male | 25 (69.4%) | 10 (55.5%) | 35 (64.8%) | X2 = 1.02 |
| Female | 11 (30.5%) | 8 (44.4%) | 19 (35.2%) | ||
| Education | High School or equivalent | 9 (25%) | 1 (5.5%) | 10 (18.5%) | X2 = 3.75 |
| College Diploma or certification studies | 22 (61%) | 12 (66.6%) | 34 (63%) | ||
| Master’s Degree and above | 5 (13%) | 5 (27.7%) | 10 (18.5%) | ||
| Family status | Unmarried | 18 (50%) | 7 (38.8%) | 25 (46.3%) | X2 = 6.25 |
| Married | 12 (33%) | 7 (38.8%) | 19 (35.2%) | ||
| Divorced | 6 (16.6%) | 4 (22.2%) | 10 (18.5%) | ||
| Income | Below average | 8 (22.2%) | 4 (22.2%) | 12 (22.2%) | X2 = 1.10 |
| Average | 14 (38.8%) | 9 (50%) | 23 (42.3%) | ||
| Above average | 14 (38.8%) | 5 (27.7%) | 19 (35.1%) | ||
| Ayahuasca parameters | Lifetime use (number of times ayahuasca was taken) | 69.4 ± 98.7 | 29.5 ± 13.7 | 55.8 ± 82.1 | U = 255 |
| Age of first ayahuasca | 30.4 ± 6.7 | 34.2 ± 10.5 | 31.7 ± 8.2 | T = 107 | |
| Last use (month) | 6.7 ± 6.8 | 4.3 ± 5.2 | 8.2 ± 5.2 | U = 252 | |
| Most intense (month) | 38.2 ± 41 | 24.9 ± 18.6 | 33.8 ± 35.5 | U = 254 | |
| Psychopathology | |||||
| Depression (BDI) | 5 ± 4.15 | 4.11 ± 4.17 | 4.7 ± 4.1 | U = 279 | |
| Depersonalization (CDS) | Duration | 45 ± 14.10 | 45.6 ± 12.04 | 45.2 ± 13.3 | U = 566 |
| Frequency | 46.1 ± 8.8 | 38.4 ± 9 | 45.6 ± 8.4 | T = 150 | |
| Trait anxiety (STAI) | 35.9 ± 8.6 | 38.4 ± 9 | 36.7 ± 8.7 | U = 270 | |
| Personality (BFI) | Extraversion | 3.4 ± 0.4 | 3.3 ± 0.6 | 3.44 ± 0.53 | T = 0.741 |
| Neuroticism | 2.42 ± 0.6 | 2.55 ± 0.6 | 2.44 ± 0.64 | T = −0.668 | |
| Agreeableness | 3.93 ± 0.4 | 3.94 ± 0.3 | 3.94 ± 0.43 | T = −0.146 | |
| Conscientiousness | 3.56 ± 0.4 | 3.50 ± 0.3 | 3.54 ± 0.40 | T = 0.524 | |
| Openness | 4.12 ± 0.4 | 3.92 ± 0.5 | 4.04 ± 0.45 | T = 1.53 | |
The table summarizes the characteristics (means, SD and the statistics) of the study sample, including demographic variables, ayahuasca use parameters, personality traits, psychopathology, as a function of APD (yAPD group) or not (nAPD group). APD, Ayahuasca-Induced personal death; CDS, Cambridge personality scale; BDI, Beck Depression Inventory; BFI, Big Five Inventory; STAI, State–Trait Anxiety Inventory. Statistics: T, T-tests; U, Mann–Whitney tests; X2, chi-square tests. No significant between-group differences were found.