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A simplified index can be used when comparing patients within an age group (i.e. 60 or younger, or over 60) and includes only 3 of the above factors: [citation needed] Stage; LDH; Performance status; The sum of the points allotted correlates with the following risk groups: Low risk (0 points) - 5-year survival of 83%
The Nottingham prognostic index (NPI) is used to determine prognosis following surgery for breast cancer. [1] [2] Its value is calculated using three pathological criteria: the size of the tumour; the number of involved lymph nodes; and the grade of the tumour. [1] It is calculated to select patients for adjuvant treatment.
Five-year relative survival rates describe the percentage of patients with a disease alive five years after the disease is diagnosed, divided by the percentage of the general population of corresponding sex and age alive after five years. Typically, cancer five-year relative survival rates are well below 100%, reflecting excess mortality among ...
For example, prostate cancer has a much higher one-year overall survival rate than pancreatic cancer, and thus has a better prognosis. Sometimes the overall survival is reported as a death rate (%) without specifying the period the % applies to (possibly one year) or the period it is averaged over (possibly five years), e.g. Obinutuzumab: A ...
Duke treadmill scores typically range from –25 (highest risk) to +15 (lowest risk). One-year mortality and five-year survival rates respectively for the results of the Duke treadmill score have been reported as follows: [4] [5] [6] less than or equal to –11: 5.25%, 65% –10 to 4: 1.25%, 90% greater than or equal to 5: 0.25%, 97%
The score is an index which takes into account the correlative and causal relationship between mortality and factors including advancing age, burn size, the presence of inhalational injury. [2] Studies have shown that the Baux score is highly correlative with length of stay in hospital due to burns and final outcome.
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Patients can die within the 5-year period, and we record when they died, or patients can live past 5 years, and we only record that they lived past 5 years. The surgery was performed at one of two hospitals, A or B , and we would like to know if the hospital location is associated with 5-year survival.