Table 5 Overall analysis for the presence of an air pocket in comparison to burial time and airway status (selected retrospective studies, case reports and additional data, 158 non-matchable cases excluded)
Air pocket | |||||||
|---|---|---|---|---|---|---|---|
Burial time | Absent | Present | Unknown | Total | |||
Short (< 35 min) | Airway | Obstructed | 14 (93%) | 0 | 1 (7%) | 15 | |
Patent | 12 (28%) | 15 35%) | 16 (37%) | 43 | |||
Unknown | 11 (23%) | 1 (2%) | 36 (75%) | 48 | |||
Total | 37 (35%) | 16 (15%) | 53 (50%) | 106 (26%) | |||
Long (≥ 35 min) | Airway | Obstructed | 28 (93%) | 0 | 2 (7%) | 30 | |
Patent | 33 (38%) | 42 (49%) | 11 (13%) | 86 | |||
Unknown | 43 (36%) | 12 (10%) | 64 (54%) | 118 | |||
Total | 104 (44%) | 54 (23%) | 76 (33%) | 234 (57%) | |||
Unknown | Airway | Obstructed | 2 (100%) | 0 | 0 | 2 | |
Patent | 42 (81%) | 7 (13%) | 3 (6%) | 52 | |||
Unknown | 1 (7%) | 0 | 13 (93%) | 14 | |||
Total | 45 (66%) | 7 (10%) | 16 (24%) | 68 (17%) | |||
Total | Airway | Obstructed | 44 (94%) | 0 | 3 (6%) | 47 | |
Patent | 87 (48%) | 64 (35%) | 30 (17%) | 181 | |||
Unknown | 55 (31%) | 13 (7%) | 112 (62%) | 180 | |||
Total | 186 (46%) | 77 (19%) | 145 (35%) | 408 | |||