[EpiData-list] Lifetable - Error on P50 calculation

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Sun Mar 29 13:28:56 CDT 2009


Hello,

I am very disappointed about error for the calculation of “p50” in
lifetable.

Probably, I’ll stop the use of this command (I had very hoped in this
program..).

I join an example with 3 errors. I can address the file.

Thank you.

Bernard BRANGER, Nantes, France

 

 

. lifetable arret durall /p50 /by=codemat /t /noci


Life Table: ARRET by codemat


 

Total
N

Cases
n

Expected
Cases

Time
Minimum


Maximum


Sum time

Hazard
Ratio

Time
S=0.50

Time
Diff.


1

19

16

11.56

1

29

249

Ref.

10.00

Ref.


2

10

6

5.97

1

29

127

1.07

11.00

1.00


3

10

5

6.81

1

28

147

0.02

15.00

5.00


4

10

6

3.04

1

14

77

842818.30

8.00

-2.00


5

22

14

16.74

1

29

344

0.09

14.00

4.00


6

18

13

13.09

4

27

284

0.91

26.00

16.00


8

14

13

7.27

1

29

160

87399.95

23.00

13.00


9

18

15

10.93

0

29

239

223.32

12.00

2.00


10

20

17

15.50

1

28

333

4.12

30.00

20.00


11

7

6

3.22

1

22

72

235936.51

11.00

1.00


12

21

11

14.84

1

29

312

0.02

18.00

8.00


13

20

15

13.92

1

28

303

3.09

13.00

3.00


14

28

15

20.54

3

29

437

0.02

23.00

13.00


15

20

8

16.57

0

29

344

0.00

27.00

17.00


Outcome: ARRET = 1
Log Rank test of equality of survivor function: Chi2(13)= 21.092 P= 0.0711 
LR test of homogeneity among groups Chi2(13)= 17.547 p= 0.1755 

 


 

Interval

NAt risk

Deaths

Lost

Survival


1

 

 

 

 

 


 

1-2

19

1

0

0.95


 

2-3

18

2

0

0.84


 

4-5

16

1

0

0.79


 

6-7

15

2

0

0.68


 

8-9

13

1

0

0.63


 

9-10

12

1

0

0.58


 

10-11

11

2

0

0.47


 

13-14

9

1

0

0.42


 

14-15

8

1

0

0.37


 

16-17

7

1

0

0.32


 

19-20

6

1

0

0.26


 

21-22

5

1

0

0.21


 

25-26

4

1

0

0.16


 

27-28

3

0

1

0.16


 

28-29

2

0

2

0.16


2

 

 

 

 

 


 

1-2

10

1

0

0.90


 

4-5

9

1

0

0.80


 

8-9

8

2

0

0.60


 

9-10

6

0

1

0.60


 

11-12

5

1

0

0.48


 

15-16

4

1

1

0.36


 

28-29

2

0

2

0.36


3

 

 

 

 

 


 

1-2

10

2

0

0.80


 

7-8

8

1

0

0.70


 

9-10

7

0

1

0.70


 

13-14

6

1

0

0.58


 

15-16

5

1

0

0.47


 

24-25

4

0

1

0.47


 

25-26

3

0

2

0.47


 

27-28

1

0

1

0.47


4

 

 

 

 

 


 

1-2

10

1

0

0.90


 

5-6

9

1

1

0.80


 

6-7

7

1

0

0.69


 

8-9

6

2

0

0.46


 

9-10

4

1

1

0.34


 

13-14

2

0

2

0.34


5

 

 

 

 

 


 

1-2

22

1

0

0.95


 

3-4

21

4

0

0.77


 

5-6

17

1

0

0.73


 

8-9

16

1

0

0.68


 

10-11

15

2

1

0.59


 

11-12

12

1

0

0.54


 

14-15

11

1

0

0.49


 

16-17

10

1

0

0.44


 

25-26

9

1

0

0.39


 

27-28

8

0

2

0.39


 

28-29

6

1

5

0.33


6

 

 

 

 

 


 

4-5

18

1

0

0.94


 

5-6

17

1

0

0.89


 

6-7

16

1

0

0.83


 

7-8

15

1

0

0.78


 

8-9

14

1

0

0.72


 

11-12

13

1

0

0.67


 

12-13

12

1

0

0.61


 

13-14

11

1

0

0.56


 

15-16

10

1

0

0.50


 

16-17

9

1

0

0.44


 

17-18

8

1

0

0.39


 

19-20

7

1

0

0.33


 

21-22

6

1

0

0.28


 

26-27

5

0

5

0.28


8

 

 

 

 

 


 

1-2

14

1

0

0.93


 

3-4

13

2

0

0.79


 

7-8

11

2

0

0.64


 

8-9

9

2

0

0.50


 

9-10

7

1

0

0.43


 

10-11

6

1

0

0.36


 

15-16

5

1

0

0.29


 

18-19

4

2

0

0.14


 

25-26

2

1

0

0.07


 

28-29

1

0

1

0.07


9

 

 

 

 

 


 

0-1

18

1

0

0.94


 

4-5

17

1

1

0.89


 

6-7

15

2

0

0.77


 

7-8

13

1

0

0.71


 

9-10

12

2

0

0.59


 

12-13

10

2

0

0.47


 

14-15

8

2

0

0.36


 

16-17

6

1

0

0.30


 

20-21

5

1

0

0.24


 

25-26

4

2

0

0.12


 

28-29

2

0

2

0.12


10

 

 

 

 

 


 

1-2

20

1

0

0.95


 

3-4

19

1

0

0.90


 

5-6

18

1

0

0.85


 

7-8

17

1

0

0.80


 

8-9

16

2

0

0.70


 

10-11

14

1

0

0.65


 

14-15

13

1

0

0.60


 

15-16

12

1

0

0.55


 

18-19

11

2

0

0.45


 

22-23

9

1

0

0.40


 

23-24

8

2

0

0.30


 

25-26

6

1

0

0.25


 

26-27

5

2

0

0.15


 

27-28

3

0

3

0.15


11

 

 

 

 

 


 

1-2

7

1

0

0.86


 

4-5

6

1

0

0.71


 

10-11

5

1

1

0.57


 

11-12

3

1

0

0.38


 

15-16

2

1

0

0.19


 

21-22

1

1

0

0.00


12

 

 

 

 

 


 

1-2

21

1

0

0.95


 

3-4

20

1

0

0.90


 

4-5

19

0

1

0.90


 

7-8

18

2

0

0.80


 

9-10

16

2

1

0.70


 

10-11

13

1

0

0.65


 

13-14

12

0

1

0.65


 

14-15

11

0

1

0.65


 

16-17

10

2

0

0.52


 

17-18

8

0

1

0.52


 

18-19

7

1

0

0.45


 

20-21

6

1

0

0.37


 

27-28

5

0

1

0.37


 

28-29

4

0

4

0.37


13

 

 

 

 

 


 

1-2

20

1

0

0.95


 

4-5

19

0

1

0.95


 

7-8

18

1

0

0.90


 

9-10

17

3

0

0.74


 

12-13

14

3

0

0.58


 

13-14

11

3

0

0.42


 

15-16

8

1

0

0.37


 

16-17

7

1

0

0.32


 

25-26

6

1

0

0.26


 

26-27

5

1

1

0.21


 

27-28

3

0

3

0.21


14

 

 

 

 

 


 

3-4

28

2

0

0.93


 

5-6

26

0

1

0.93


 

6-7

25

1

0

0.89


 

8-9

24

1

2

0.85


 

9-10

21

1

2

0.81


 

10-11

18

0

1

0.81


 

13-14

17

0

3

0.81


 

14-15

14

0

1

0.81


 

15-16

13

1

0

0.75


 

16-17

12

1

0

0.69


 

19-20

11

0

1

0.69


 

21-22

10

2

0

0.55


 

23-24

8

1

0

0.48


 

24-25

7

1

0

0.41


 

27-28

6

1

0

0.34


 

28-29

5

3

2

0.14


15

 

 

 

 

 


 

0-1

20

1

0

0.95


 

3-4

19

1

0

0.90


 

5-6

18

0

1

0.90


 

7-8

17

0

1

0.90


 

11-12

16

0

1

0.90


 

13-14

15

1

0

0.84


 

14-15

14

0

3

0.84


 

15-16

11

2

0

0.69


 

19-20

9

1

0

0.61


 

21-22

8

1

0

0.53


 

26-27

7

0

1

0.53


 

27-28

6

1

0

0.45


 

28-29

5

0

5

0.45

 

 

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