Rate of Hypokalemia and Risk Factors in Patients on Peritoneal Dialysis Under PD First Policy
Keywords:Electrolyte, potassium, hypokalemia, dialysis, peritoneal dialysis, CAPD PD First, Thailand
Background: Hypokalemia is common among peritoneal dialysis (PD) patients. The incidence rate of
hypokalemia and risk factors were investigated.
Material and Method: A retrospective cohort, enrolled 1,044 incident PD patients under the Universal Health
Coverage(UHC) Scheme of a regional hospital between January 2012 and December 2018. Hypokalemia
was defined as having serum potassium less than 3.5mEq/L. The rate of hypokalemia in episodes per one
year at risk was determined. Risk factors of hypokalemia were reported as an incidence rate ratio using
Results: The incidence rate of hypokalemia was 2.21(95% confidence interval, 2.14-2.27)episodes per one
year at risk. Risk factors of hypokalemia were ; older than 60 years, female, diabetes, bodyweight less than
45 kg, serum albumin less than 3.5 g/dL, serum phosphate less than 2.5 mg/dL, and total lymphocyte count
less than 1,500 cells/mm3
Conclusions: Hypokalemia was frequently occurred in PD patients. Elderly PD patients, female, diabetes,
malnutrition, low serum albumin, and lowserum phosphate had higher risks to develop hypokalemia.
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