TABLE 3.
Study participants syncope history.
| First author (year) | Syncope history, years | Sleep syncope prevalence# | Supine, n (%) |
Daytime VVS, n (%) | Childhood syncope, n (%) | Phobias, n (%) | Tilt positive, n (%) |
| Atsuumi et al. (9) | 1 | 10 | 1 (100%) | 0 (0.0%) | |||
| °Busweiler et al. (10) | Lifetime | 5.4 ± 0.8 | 18 (32.7%) | 54 (100%) | 27 (50.0%) | 40 (74.5%) | 47 (87.0%) |
| Eguchi et al. (11) | 1 | 4 | 1 (100%) | 0 (0.0%) | |||
| Iskos et al. (12) | 0.9 ± 0.3 | 2 (100%) | |||||
| °Jardine et al. (6) | 6.2 ± 7 | 2.0 ± 3 per year | 68 (98.6%) | 41 (58.0%) | 49 (71.0%) | 63 (91.3%) | |
| *Kapoor (13) | 9 (100%) | 9 (100%) | |||||
| *Khadilkar et al. (14) | 5 (100%) | 1 (20%) | |||||
| Marrison and Parry (15) | 21 | 3 | 1 (100%) | 0 (0.0%) | 1 (100.0%) | ||
| Overdijk et al. (16) | 1 (100%) | 1 (100%) | 1 (100.0%) | ||||
| Rytlewski et al. (17) | 20 | Every 8 to 12 months | 0 (0.0%) | 1 (100%) | 1 (100%) | 0 (0.0%) | |
| Shahab et al. (18) | 5 (100%) | 4 (80.0%) | 1 (20.0%) | 5 (100.0%) | |||
| Tewfik et al. (19) | 0.5 | 3 | 8 (42.1%) | ||||
| Xu et al. (20) | 6.0 ± 1.0 | 2 (100%) | 1 (50.0%) | 0 (0.0%) |
*Subgroup from larger cohort. °Includes data from the same cohort. #Absolute number or frequency as reported in original studies. Only unique data presented in the study by Busweiler et al. was used in analysis of clinical characteristics and symptoms.