Table 2:
Regression Analysis Results
| Outcome: VPI Diagnosis – Logistic Regression | ||||||
|---|---|---|---|---|---|---|
| Exposure | Univariate Analysis | Multivariate Analysis a | ||||
| OR | 95% CI | p-value | OR | 95% CI | p-value | |
| Two-Stage Repair | 1.67 | (1.3,2.2) | <0.001 | 1.80 | (1.4,2.4) | <0.001 |
| Surgeon Volumeb | 0.98 | (0.97,.99) | 0.006 | |||
| Outcome: Speech Surgery – Logistic Regression | ||||||
| Two-Stage Repair | 1.16 | (0.8,1.6) | 0.38 | 1.22 | (0.9, 1.7) | 0.23 |
| Surgeon Volumeb | 0.98 | (0.96,0.99) | 0.001 | |||
| Outcome: Total Palate Proceduresd –Linear Regression | ||||||
| Number of Proceduresd |
95% CI | p-value | Number of Procedures |
95% CI | p-value | |
| Two-Stage Repair | 3.45 | (3.3,3.6) | <0.001 | 2.30 | (1.7,3.0) | <0.001 |
| Surgeon Volumeb | −0.03 | (−0.06,−0.01) | 0.004 | |||
| Veau | ||||||
| I | −2.47 | (−4.0,−0.9) | 0.002 | |||
| II | −2.13 | (−2.9,−1.4) | 0.002 | |||
| III | −1.03 | (−1.6,0.4) | <0.001 | |||
| IV | -- | -- | -- | |||
Abbreviations: OR – Odds Ratio; CI – Confidence Interval
a
Logistic Regression – All multivariate models began by adjusting for Veau classification, surgeon volume, race, gender, and insurance status. Logistic regressions also adjusted for year of birth. Significant co-variates were retained in the final multivariate analysis.
b
Per 10 repairs done.
c
Linear Regression—Multivariate models adjusted as above, but excluding year of birth.
d
Excludes surgical days on which only prosthesis management occurred