CKD Survival KFRE Calculator
Using an equation developed by Dr. Nisha Bansal and colleagues, this tool can calculate the survival rate for elderly individuals with CKD and assess the risk of kidney failure with the Tangri 4-variable equation.
"Development and Validation of a Model to Predict 5-Year Risk of Death without ESRD among Older Adults with CKD"
Vitamin D Calculator
Single measurements of 25-hydroxyvitamin D (vitamin D) do not accurately reflect long-term exposure due to seasonal variations in the intensity of sunlight. Use this calculator to estimate your annual mean concentration of vitamin D based on a single measurement and the time of year that measurement was taken. Questions or comments? Email Dr. Ian de Boer.
Urine Phosphate Calculator
Traditional management of stage III-V chronic kidney disease (CKD) includes dietary phosphate restriction and/or the use of phosphorus binders. Monitoring dietary phosphorus is important for assessing patient compliance and the effectiveness of therapeutic interventions. The 24-hour urine collection is the gold standard method for measuring dietary phosphorus; however, this procedure is cumbersome and prone to timing errors. Use this calculator to estimate 24-hour urine phosphorus concentration based on spot urine phosphorus concentration, spot urine creatinine, age, gender, and body weight.