Melanoma data:

 

Short description:

In the period 1962-77 a total of 205 patients with malignant melanoma were operated at Odense University hospital in Denmark. The patients were followed up until death or censoring at the end of the study at 31/12-1977.

 

Coding of variables:

1)  status: 1=death from disease, 2=censored, 4=death from other cause

2)  lifetime: time from operation to death or censoring ?(in years)

3)  ulcer: ulceration (1=present, 2=absent)

4)  thickn: tumor thickness in mm

5)  sex: 1=female, 2=male

6)  age: age at operation (in years)

7)  grthick: grouped tumor thickness (1: 0-1 mm, 2: 2-5 mm, 3: 5+ mm)

8)  logthick: logarithm of tumor thickness

 

Source:

Andersen, P.K., Borgan, ?., Gill, R.D. and Keiding, N. (1993). Statistical models based on counting processes. Springer-Verlag, New York.