Table 6 Overall analysis for survival in comparison to burial time and airway status (selected retrospective studies, case reports and additional data, 18 non-matchable cases and cases of Métrailler-Mermoud et al. [19] excluded)
Survival | |||||||
|---|---|---|---|---|---|---|---|
Burial time | Died | Survived | Unknown | Total | |||
Short (< 35 min) | Airway | Obstructed | 6 (40%) | 1 (7%) | 8 (53%) | 15 | |
Patent | 17 (45%) | 12 (31%) | 9 (24%) | 38 | |||
Unknown | 15 (50%) | 3 (10%) | 12 (40%) | 30 | |||
Total | 38 (46%) | 16 (19%) | 29 (35%) | 83 (17%) | |||
Long (≥ 35 min) | Airway | Obstructed | 27 (61%) | 1 (2%) * | 16 (37%) | 44 | |
Patent | 65 (64%) | 25 (25%) | 12 (11%) | 102 | |||
Unknown | 123 (60%) | 19 (9%) | 63 (31%) | 205 | |||
Total | 215 (61%) | 45 (13%) | 91 (26%) | 351 (72%) | |||
Unknown | Airway | Obstructed | 2 (100%) | 0 | 0 | 2 | |
Patent | 38 (76%) | 12 (24%) | 0 | 50 | |||
Unknown | 2 (67%) | 1 (33%) | 0 | 3 | |||
Total | 42 (76%) | 13 (24%) | 0 | 55 (11%) | |||
Total | Airway | Obstructed | 35 (57%) | 2 (3%) | 24 (40%) | 61 | |
Patent | 120 (63%) | 49 (26%) | 21 (11%) | 190 | |||
Unknown | 140 (59%) | 23 (10%) | 75 (31%) | 238 | |||
Total | 295 (63%) | 74 (14%) | 120 (23%) | 489 | |||