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Table 1 Confounders in fresh cadaver and fixed cadavers

From: Ultra percutaneous dilation tracheotomy vs mini open tracheotomy. A comparison of tracheal damage in fresh cadaver specimens

Confounder Fresh cadaver Fixed cadavers
PDT (n = 10) Open (n = 10) PDT (n = 9) Open (n = 7)
Age Mean = 79 Mean = 74 Mean = 81.5 Mean = 75.8
Range = 69–74 Range = 62–88 Range = 68–97 Range = 65–88
Landmarks Easy = 6 Easy = 5 Easy = 5 Easy = 5
Difficult = 4 Difficult = 5 Difficult = 4 Difficult = 2
Sex M = 5 M = 3 M = 5 M = 3
F = 5 F = 7 F = 4 F = 4