a trend toward significancep = 0.074
On multivariable analysis, only ASA score III or higher remained statistically associated with PSI (odds ratio [OR] = 4.74, 95% confidence interval [CI] = 1.33–16.92, p = 0.016), though hematoma formation showed a trend toward significance (odds ratio [OR] = 6.51, 95% confidence interval [CI] = 0.84–50.70, p = 0.074).