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    Kidney Failure Risk Calculator

    Predicts progression to kidney failure in patients with chronic kidney disease (CKD).
    Favorite
    Pearls/Pitfalls

    Derived and initially validated in data from patients in nephrology clinics; likely has limited validity in patients who are acutely ill.

    10-14
    -35
    15-19
    -30
    20-24
    -25
    25-29
    -20
    30-34
    -15
    35-39
    -10
    40-44
    -5
    45-49
    0
    50-54
    +5
    55-59
    +10
    Female
    0
    Male
    -2
    <30
    0
    30-300
    -14
    >300
    -22
    <30
    -4
    30-39
    -2
    40-49
    0
    50-59
    +2
    60-69
    +4
    70-79
    +6
    80-89
    +8
    ≥90
    +10
    ≤2.5
    -5
    2.6-3 0
    0
    3.1-3.5
    +2
    ≥3.6
    +4
    <3.5
    +3
    3.5-4.5
    0
    4.6-5.5
    -3
    >5.5
    -5
    <18
    -7
    18-22
    -4
    23-25
    -1
    >25
    0
    ≤8.5
    -3
    8.6-9.5
    0
    ≥9.6
    +2

    Result:

    Please fill out required fields.

    Next Steps
    Evidence
    Creator Insights

    Management

    Lower-risk patients may be best managed by a primary care physician, with higher-risk patients likely benefiting from management by a nephrologist.

    Formula

    Addition of the selected points:

    Variable

    Points

    eGFR, mL/min/1.73m²



    10-14

    -35

    15-19

    -30

    20-24

    -25

    25-29

    -20

    30-34

    -15

    35-39

    -10

    40-44

    -5

    45-49

    0

    50-54

    5

    55-59

    10

    Sex

    Female

    0

    Male

    -2

    Urine albumin-to-creatinine ratio, mg/g

    <30

    0

    30-300

    -14

    >300

    -22

    Age, years

    <30

    -4

    30-39

    -2

    40-49

    0

    50-59

    2

    60-69

    4

    70-79

    6

    80-89

    8

    ≥90

    10

    Serum albumin, g/dL

    ≤2.5

    -5

    2.6-3 0

    0

    3.1-3.5

    2

    ≥3.6

    4

    Serum phosphorus, mg/dL

    <3.5

    3

    3.5-4.5

    0

    4.6-5.5

    -3

    >5.5

    -5

    Serum bicarbonate, mEq/L

    <18

    -7

    18-22

    -4

    23-25

    -1

    >25

    0

    Serum calcium, mg/dL

    ≤8.5

    -3

    8.6-9.5

    0

    ≥9.6

    2

    Facts & Figures

    Interpretation:

    Kidney Failure Risk Score

    Probability of kidney failure at 5 years

    <-41

    >90.0%

    -41

    89.0%

    -40

    86.9%

    -39

    84.1%

    -38

    81.0%

    -37

    81.0%

    -36

    74.4%

    -35

    70.9%

    -34

    67.3%

    -33

    63.6%

    -32

    59.9%

    -31

    56.3%

    -30

    52.8%

    -29

    49.3%

    -28

    45.9%

    -27

    42.7%

    -26

    39.6%

    -25

    36.6%

    -24

    33.8%

    -23

    31.2%

    -22

    28.7%


    -21

    26.4%

    -20

    24.2%

    -19

    22.2%

    -18

    20.3%

    -17

    18.6%

    -16

    17.0%

    -15

    15.5%

    -14

    14.1%

    -13

    12.9%

    -12

    11.7%

    -11

    10.7%

    -10

    9.7%

    -9

    8.8%

    -8

    8.0%

    -7

    7.3%

    -6

    6.6%

    -5

    6.0%

    -4

    5.5%

    ≥-3

    <5.0%

    Dr. Navdeep Tangri

    About the Creator

    Navdeep Tangri, MD, PhD, FRCPC, is a physician and medical researcher at Seven Oaks General Hospital in Winnipeg, Canada. He is also an associate professor in the nephrology division at the University of Manitoba in Canada. Dr. Tangri's primary research is focused on the epidemiology of chronic kidney disease and end-stage renal disease.

    To view Dr. Navdeep Tangri's publications, visit PubMed

    About the Creator
    Dr. Navdeep Tangri