With a concerted effort to increase home dialysis utilization, it is crucial to better understand patient characteristics that affect the quality of dialysis delivered, as well as the likelihood of technique failure. In peritoneal dialysis (PD), the quality of dialysis is dictated by the patient's peritoneal membrane water and solute transport characteristics. Studies that shed light on determinants of peritoneal membrane function in an individual patient may assist providers in personalizing PD prescriptions.