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Table 2 Adequate oral endotracheal tube sizes according to sub groups

From: Ease and difficulty of pre-hospital airway management in 425 paediatric patients treated by a helicopter emergency medical service: a retrospective analysis

  Adequate Inadequate (small) Inadequate (large) p-value
Gender     
 Female (n = 133) 107 (80.5%) 6 (4.5%) 20 (15%) p = 0.467
 Male (n = 210) 176 (83.8%) 4 (1.9%) 30 (14.3%)
Age in years     
 0–1 (n = 33) 14 (42.4%) 0 (0%) 19 (57.6%) p < 0.001
 1–2 (n = 37) 30 (81.1%) 0 (0%) 7 (18.9%)
 2–4 (n = 56) 49 (87.5%) 0 (0%) 7 (12.5%)
 4–6 (n = 37) 32 (86.5%) 0 (0%) 5 (13.5%)
 6–8 (n = 32) 27 (84.4%) 1 (3.1%) 4 (12.5%)
 8–10 (n = 30) 27 (90%) 2 (6.7%) 1 (3.3%)
 10–12 (n = 21) 14 (66.7%) 5 (23.8%) 2 (9.5%)
 12–17 (n = 97) 90 (92.8%) 2 (2.1%) 5 (5.1%)
Mission type     
 Primary (n = 195) 165 (84.6%) 7 (3.6%) 23 (11.8%) p = 0.253
 Secondary (n = 148) 118 (79.7%) 3 (2.1%) 27 (18.2%)
Medical indication     
 Trauma (n = 194) 166 (85.6%) 6 (3.1%) 22 (11.3%) p = 0.114
 Non-trauma (n = 149) 117 (78.5%) 4 (2.7%) 28 (18.8%)
Resuscitation     
 Yes (n = 72) 53 (73.6%) 5 (6.9%) 14 (19.4%) p = 0.035
 No (n = 271) 230 (84.9%) 5 (1.8%) 36 (13.3%)
  1. Summary of adequate ET tube size (per age) according to subgroup. Endotracheal tube size copied from the original patient protocol. Adequate ET tube size is indicated by the Microcuff tube manufacturer. Outside a 15% tolerance, ET tube size is judged as inadequate. All ET tubes contained a cuff