Survival analysis in the incident dialysis patients by different modalities

To analysis survival in onset uremic patients who initiating HD or PD dialysis in our dialysis center.

Between Jan. 2015 and June. 2018, patients with onset uremia and initiating planned-start dialysis were retrospectively enrolled in this study and followed up to January, 2019. The relationships between the types of dialysis modality and patient prognosis were assessed.

A total of 460 patients were included in the final analysis. Of which, 213 patient (46.30%) undergoing PD and 247 patients (53.70%) undergoing HD with arteriovenous fistula. The average follow-up time was 27.9 months. Eighty-seven (18.91%) patients died during the study period. The all-cause mortality was 127 per 1000 person-year. It was 102 per 1000 person-year in the HD group and 171 per 1000 person-year in the PD group (p < 0.01). However, dialysis modality was not an independent predictor for survival. During the first year after dialysis initiation, patient survival was comparable between the PD and HD groups (log-rank p = 0.14). As the dialysis age increased over 1 year, HD patients seemed to have a better survival as compared to that of PD patient (log-rank p < 0.05), especially those older than 65 years and without DN.

Though dialysis modality was not an independent factor for overall survival, HD therapy seemed to be more suitable for patients without DN.