Table III.
Univariate and multivariable Cox’s proportional hazard models for the analyzed background variables supported for the need for revision ESS. Only the CRS subjects who underwent ESS at the baseline (n = 48) were included. Bold values denote statistical significance at the p < 0.05 level. The second model is a multivariable model adjusted by the variables that were associated with the need for revision ESS at p < 0.05 level in the first model.
| N All | N (%) Events | HR (95% CI) | p | aHR (95% CI) | p | ||
|---|---|---|---|---|---|---|---|
| Gender | Female | 30 | 5 (16.7) | 2.29 (0.70-7.52) | 0.17 | Not entered | |
| Male | 18 | 6 (33.3) | |||||
| Age | 1.009 (0.97-1.05) | 0.66 | Not entered | ||||
| CRSwNP | No | 31 | 7 (22.6) | 1.06 (0.31-3.63) | 0.93 | Not entered | |
| Yes | 16 | 4 (25.0) | |||||
| Asthma and/or NERD | No | 30 | 7 (23.3) | 0.82 (0.21-3.18) | 0.78 | Not entered | |
| Yes | 15 | 3 (20.0) | |||||
| AR | No | 21 | 6 (28.6) | 0.54 (0.15-1.91) | 0.34 | Not entered | |
| Yes | 24 | 4 (16.7) | |||||
| ≥ 1 OCS courses/year | No | 41 | 7 (17.1) | 3.90 (1.14-13.4) | .031 | 3.14 (0.88-11.2) | .079 |
| Yes | 7 | 4 (57.1) | |||||
| Previous ESS | No | 34 | 5 (14.7) | 3.57 (1.09-11.71) | .036 | 2.21 (0.45-10.9) | .33 |
| Yes | 13 | 6 (46.2) | |||||
| LM score | 1.04 (0.92–1.17) | .53 | Not entered | ||||
| Radiological score | 1.93 (1.07-3.50) | .029 | 1.41 (0.65-3.07) | .39 | |||
aHR: adjusted Hazard Ratio; AR: allergic rhinitis; CI: confidence interval; CRS: chronic rhinosinusitis; CRSwNP: chronic rhinosinusitis with nasal polyps; ESS: endoscopis sinus surgery; HR: Hazard Ratio; LM: Lund-Mackay; NERD: NSAIDs exacerbated respiratory disease; NSAIDs: non-steroidal anti-inflammatory drugs; OCS:oral corticosteroid(s). Data was missing in many variations.