Time in Months

Number at risk

Cured

Cumulative survival S(tj)

Incidence = 1 − S(tj)

0

1542

0

1

0

11

846

2

0.9977

0.0023

17

794

1

0.9964

0.0036

18

779

2

0.9939

0.0061

19

744

9

0.9822

0.0178

20

690

23

0.9510

0.0490

21

642

29

0.9104

0.0896

22

590

42

0.8500

0.1500

23

512

60

0.7608

0.2392

24

309

160

0.5069

0.4931

25

110

162

0.2155

0.7845

26

38

58

0.0877

0.9123

27

14

16

0.0447

0.9553

28

8

5

0.0275

0.9725

29

4

4

0.0118

0.9882

30

3

2

0.0039

0.9961