Table S4. Predictors of changes in frequency of bronchoscopy after stent placement. Y = Δbronch/month (during – pre), n=36.
| Predictors | Univariate | Multivariate | Reduced | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate | Standard error | Chi-sq | P value | Estimate | Standard error | t-value | P value | Estimate | Standard error | t-value | P value | |||
| Age at transplant | −0.02 | 0.02 | −1.03 | 0.312 | – | – | – | – | – | – | – | – | ||
| Gender | 0.51 | 0.33 | 1.53 | 0.135 | 0.82 | 0.33 | 2.51 | 0.017 | 0.78 | 0.33 | 2.33 | 0.026 | ||
| Baseline FEV1 | −0.32 | 0.31 | −1.05 | 0.304 | – | – | – | – | – | – | – | – | ||
| Location of stent | 0.686 | – | – | – | – | – | – | – | – | |||||
| LMSB | −0.27 | 0.56 | −0.47 | 0.639 | – | – | – | – | – | – | – | – | ||
| RMSB | −0.69 | 0.64 | −1.08 | 0.289 | – | – | – | – | – | – | – | – | ||
| RBI | −0.17 | 0.66 | −0.25 | 0.803 | – | – | – | – | – | – | – | – | ||
| Peripheral | REF | – | – | – | – | – | – | – | – | |||||
| Type of stent | 0.384 | – | – | – | – | – | – | – | – | |||||
| CSEMS | 0.44 | 0.54 | 0.81 | 0.425 | – | – | – | – | – | – | – | – | ||
| USEMS | 0.52 | 0.41 | 1.28 | 0.21 | – | – | – | – | – | – | – | – | ||
| Silicone | REF | – | – | – | – | – | – | – | – | |||||
| Type of airway complication | ||||||||||||||
| Dehiscence | 0.74 | 0.47 | 1.57 | 0.126 | 1.04 | 0.46 | 2.27 | 0.03 | 1.11 | 0.47 | 2.36 | 0.024 | ||
| Cicatrix scar | −0.05 | 0.34 | −0.14 | 0.89 | – | – | – | – | – | – | – | – | ||
| Pseudomembrane | −0.25 | 0.39 | −0.66 | 0.515 | – | – | – | – | – | – | – | – | ||
| Malacia | −0.4 | 0.34 | −1.19 | 0.241 | – | – | – | – | – | – | – | – | ||
| Days prior to stent placement | 0 | 0 | −0.33 | 0.74 | – | – | – | – | – | – | – | – | ||
| # of days with stent | 0 | 0 | −1.59 | 0.121 | 0 | 0 | −1.71 | 0.096 | – | – | – | – | ||
| Stent Related complications | ||||||||||||||
| Mucous plugging | −0.24 | 0.34 | −0.71 | 0.485 | – | – | – | – | – | – | – | – | ||
| Migration | 0.2 | 0.36 | 0.54 | 0.593 | – | – | – | – | – | – | – | – | ||
| Bleeding | −0.17 | 0.54 | −0.31 | 0.755 | – | – | – | – | – | – | – | – | ||
| Granulation tissue | −0.15 | 0.35 | −0.44 | 0.664 | – | – | – | – | – | – | – | – | ||
| Fracture | – | – | – | – | – | – | – | – | – | – | – | – | ||
| Restenosis | 0.02 | 0.43 | 0.04 | 0.965 | – | – | – | – | – | – | – | – | ||
| Dehiscence | −0.28 | 0.73 | −0.38 | 0.709 | – | – | – | – | – | – | – | – | ||
| Symptomatic improvement after stent | 0.17 | 0.51 | 0.33 | 0.741 | – | – | – | – | – | – | – | – | ||
| # of stent exchanges | 0 | 0.12 | −0.01 | 0.992 | – | – | – | – | – | – | – | – | ||
FEV1, forced expiratory volume over 1 second; LMSB, left mainstem bronchus; RMSB, right mainstem bronchus; RBI, right bronchus intermedius; CSEMS, covered self expanding metallic stent; USEMS, uncovered self expanding metallic stent.