st: Problems with stset

[Stefan Englund <stefan.englund@sofi.su.se>]

Dear Statalisters

I want to do a Survival analysis with multiple episodes and with time 
varying covariates. The data set looks something like the following

id	year	event	x1	x2
1	1975	0	0,86	0,97
1	1976	0	0,11	0,97
1	1977	1	0,51	0,79
1	1978	0	0,62	0,88
etc	.	.	.	.
1	1990	0	0,75	0,85
1	1991	1	0,75	0,80
1	1992	0	0,73	0,82
etc	.	.	.	.
1	1995	0	0,80	0,85
2	1975	0	0,90	0,56
2	1976	1	0,80	0,64
2	1977	0	0,80	0,50
etc	.	.	.	.
2	1995	0	0,90	0,67
3	1975	0	0,45	0,91
etc	.	.	.	.
3	1980	1	0,93	0,70
3	1981	0	0,91	0,62
etc	.	.	.	.
3	1995	0	0,99	0,50
etc
etc
18	1995	0	0,33	0,21

The X:s are varying every year and the events are cuts in the unemployment 
benefit. The problem I have is to set the appropriate duration in stset. I 
want the spell to be from the year after the last cut up to the present 
cut. Am I totally wrong or can I do this using Stata? Can someone please 
help me?

thanks in advance


Stefan Englund
Swedish Institute for Social Research

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