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  3. the data below are survival times (in years) for c

The data below are survival times (in years) for cancer patients receiving experimental therapy (TREAT) or...

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Question

Basic Math

  1. The data below are survival times (in years) for cancerpatients receiving experimental therapy (TREAT) or standard of care(SOC) in a time-to-mortality study.

ID

Therapy

Years

Event

1

TREAT

1.6

1

2

TREAT

2.7

1

3

TREAT

4.9

1

4

TREAT

5.3

0

5

TREAT

6.2

1

6

TREAT

6.7

0

7

TREAT

7.1

1

8

TREAT

7.9

1

9

SOC

0.6

1

10

SOC

1.4

1

11

SOC

1.6

1

12

SOC

3.5

1

13

SOC

4.8

1

14

SOC

5.7

1

15

SOC

6.3

1

16

SOC

7.3

0

  1. By hand, calculate the Kaplan-Meier estimate of the survivalfunction for each therapy:
  2. By hand, calculate the pointwise 95% confidence intervals forthe Kaplan-Meier survival estimate for each therapy.
  3. By hand, calculate the point and 95% confidence intervalestimates of the 25th, 50th, and75th percentiles of the survival distribution for eachtherapy.

Answer & Explanation Solved by verified expert
3.7 Ratings (337 Votes)
First we have to split the data with two datasets One is forTREAT and another is for SOCIDTherapyYearsEventdAt risknkM    See Answer
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