Onset, frequency and predictability of voices
| Present study (n=58) | Woods et al 2015 (n=153) | |
| Voice onset | ||
| Childhood (0–11) | 6 (10%) | 52 (34%) |
| Adolescence(12–20) | 11 (19%) | 32 (21%) |
| Adulthood (21+) | 32 (55%) | 29 (19%) |
| Uncertain | 9 (16%) | 40 (26%) |
| Circumstances | ||
| Positive | 4 (7%) | 17 (11%) |
| Negative | 15 (26%) | 36 (24%) |
| Traumatic | 2 (3%) | 35 (23%) |
| Transitional | 7 (12%) | |
| Substance use | 1 (2%) | 10 (7%) |
| Not enough information to classify | 29 (50%) | 55 (36%) |
| Frequency (lifetime number of occurrences) | ||
| 1 | 15 (26%) | |
| 2–4 | 12 (21%) | |
| 5–10 | 4 (7%) | |
| 11+ | 7 (12%) | |
| Uncertain (but more than 1) | 20 (35%) | |
| Prediction | ||
| Can predict/anticipate | 1 (2%) | 67 (44%) |
| Cannot predict/anticipate | 57 (98%) | 70 (46%) |
| Continuous voices | 0 (0%) | 22 (14%) |