Fig 1.
Flowchart.
Fig 2.
Type of administrative structures.
Table 1.
Distribution of patient-level characteristics in the five clusters of centers.
Table 2.
Distribution of center-level characteristics in the five clusters of centers.
Fig 3.
Dendrogram defining the clusters of centers.
Each PD-center is represented by a black dot at the bottom of the dendrogram, with the number of catheter registered in it. In the virtual space of practices, distances between each center are computed. Centers are joined by nodes placed at a height that is proportional to the distance between the centers. Five clusters of centers are determined to optimize the variability between clusters while minimizing complexity.
Fig 4.
Distribution of practices in the five clusters of centers.
The distribution of the modalities used for each practices is represented in the five clusters of centers. Statistically significant differences in the distribution of modalities with cluster 1 (taken as the reference) are marked with a red star.
Fig 5.
Survival Kaplan-Meier curves according to the cluster of centers. 5A. Technique failure. 5B. Peritonitis.
Table 3.
Bivariate analysis for the three events of interest.
Results of the Cox and Fine and Gray models.
Fig 6.
Association between covariates and technique failure. Results of the multivariate Cox model (A) and Fine and Gray model (B).
The class of references are: female for the sex, 18–39 years old for the age, 2–3 for the modified Charlson comorbidity index, and cluster number 1 for the clusters of centers. CCI: modified Charlson Comorbidity Index, cs-HR: cause specific hazard-ratio, 95%CI: 95% confidence interval, sd-HR: subdistribution specific hazard-ratio.
Table 4.
Hierarchical analysis for the primary outcome: Technique failure (multivariate analysis with a mixed effect Cox model).