Data management and statistical analysis
The collected data were anonymised and stored on the secure hospital
server. Statistical analysis was performed with SPSS version 27 (Armonk,
NY). Comparisons between treatment approaches were analysed using the
Chi-square test. The means for LOS and ages were compared using the
Mann-Whitney U test. A univariate binary logistic regression analysis
was carried out to investigate predictive factors (age, sex, combined
ENT and neurosurgical intervention, size of collection, time to surgery,
SDE).