Table 3 Possible predictors of high-grade (score ≥ 7) biofilm formation on the endotracheal tube
From: Biofilm formation on three different endotracheal tubes: a prospective clinical trial
Factor | No n = 65 | Yes n = 41 | Univariable analysis | Multivariable analysis | ||||
|---|---|---|---|---|---|---|---|---|
OR | 95% CI | p value | OR | 95% CI | p value | |||
ETT type | ||||||||
PVC (reference) | 15 (23) | 19 (46) | NA | NA | NA | NA | NA | NA |
SC | 23 (35) | 7 (17) | 0.24 | 0.08–0.71 | 0.010 | 0.18 | 0.06–0.59 | 0.005 |
NbMC | 27 (42) | 15 (37) | 0.44 | 0.17–1.11 | 0.081 | 0.34 | 0.13–0.93 | 0.036 |
Age | 69 (58–76) | 66 (53–75) | 0.98 | 0.95–1.00 | 0.088 | 0.98 | 0.95–1.02 | 0.388 |
Sex, male | 34 (52) | 26 (63) | 1.58 | 0.71–3.52 | 0.262 | 1.78 | 0.72–4.39 | 0.211 |
Days with invasive ventilation | 3.1 (2.0–5.8) | 3.8 (2.0–9.2) | 1.06 | 0.98–1.14 | 0.157 | 1.06 | 0.97–1.15 | 0.219 |
Colonized | 33 (51) | 18 (44) | 0.76 | 0.35–1.67 | 0.491 | 0.59 | 0.25–1.43 | 0.245 |