Table 2 Post-intubation tracheal stenosis features
Features | Total n = 76 | Simple n = 29 | Complex n = 47 | P Value |
|---|---|---|---|---|
Prolonged intubation time, days, median (min-max) | 20.5 (3-120) | 14 (3–60) | 22 (3-120) | 0.011 |
Number of intubations, one/more than one, n (%) | 30(39.5) / 46(60.5) | 16(55.2) / 13(44.8) | 14(29.8) / 33(70.2) | 0.028 |
Tracheostomy, n (%) | 16 (21.1) | 6 (20.7) | 10 (21.3) | 0.951 |
Stenosis length, cm, median (min-max) | 1.9 (0.5–5.5) | 1 (0.5-3.0) | 2 (1.0-5.5) | < 0.001 |
Location, n (%) Subglottic area Upper tracheal area Mid/lower tracheal area Two or more areas | 20 (26.3) 44 (57.9) 6 (7.9) 6 (7.9) | 6 (20.7) 21 (72.4) 2 (6.9) 0 | 14 (29.8) 23 (48.9) 4 (8.5) 6 (12.8) | 0.110 |
Stenosis percentage, n (%) Grade I (0–50%) Grade II (51–70%) Grade III (71–99%) Grade IV (100%) | 6 (7.9) 40 (52.6) 30 (39.5) 0 | 6 (20.7) 17 (58.6) 6 (20.7) 0 | 0 23 (48.9) 24 (51.1) 0 | < 0.001 |