Statistical analysis
Quantitative variables are described as follows: N, average - standard deviation, minimum - Q1 - median - Q3 - maximum. For qualitative variables, the effective (N) and the percentage (%) are presented for each modality. To compare the different populations, the following statistical tests were used: Fisher (F) test for qualitative parameters and Kruskal-Wallis (KW) test for quantitative parameters. In case of p < 0.05, 2 to 2 tests with a correction of the threshold of significance according to the method of Bonferroni (for Fisher) or Dwass, Steel, Critchow-Fligner (for Kruskal-Wallis) were carried out. The analyses were carried out with the SAS software, version 9.4.
Ethics
The local ethics committee approved the study (Reference: 20.119).