JiscMail Logo
Email discussion lists for the UK Education and Research communities

Help for ALLSTAT Archives


ALLSTAT Archives

ALLSTAT Archives


allstat@JISCMAIL.AC.UK


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

ALLSTAT Home

ALLSTAT Home

ALLSTAT  1999

ALLSTAT 1999

Options

Subscribe or Unsubscribe

Subscribe or Unsubscribe

Log In

Log In

Get Password

Get Password

Subject:

left censoring

From:

"Simon Bond" <[log in to unmask]>

Reply-To:

Simon Bond

Date:

Mon, 20 Sep 1999 13:06:46 +0100

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (149 lines)

In response to my request for recomended software to perform a
non-parametric survival curve estimate on left & right censored data, I
received 8 replies. Thanks to all of you. The results were

STATA	5
SAS	3
S-plus	2
EGRET	1

However one person did claim specifically that S-plus could not perform the
desired analysis. Incidentally, I posted the original question  because
neither SPSS nor R can do it.

I've produced a digest of the responses below.


Simon Bond.



__________________________

Nick Taub:

hat think that STATA version 5 (or later) will help you.

> I'd be grateful if anyone could recommend some software that can produce a
> non-parametric estimate of a survival curve and do log-rank tests, for data
> which has left as well as right censoring. Some references would be very
> useful also.

Nick Taub

Lecturer in Medical Statistics
Department of Epidemiology and Public Health
University of Leicester

___________________________

Rosa Lamarca:

EGRET, STATA, SAS and S-plus allow for right censoring and left-truncation.
We have been working with elderly populations where the survival data have
the above characteristics. We have a paper about this issue.
'Left-truncated data with age as time scale: an alternative for survival
analysis in the elderly population' Lamarca et al Journal of Gerontology Med
sci 1998 vol 53A(5):
M337_M343. In the appendix you'll find the commands that are used in this
case in the aforementioned statistical packages. I the bibliography there
are included the main papers about this under my criteria.
Best wishes


Rosa Lamarca
Health Services Research Unit
Institut Municipal d'Investigació Mèdica (IMIM)
C/ Dr. Aiguader, 80. E-08003 Barcelona, SPAIN.

___________________________________________

Ronan Conroy:

Stata has the possibility for subjects to enter at arbitrary times and 
exit and re-enter if necessary. 

________________________________

Sima Patel:

This not be of much use to you but for our survival 
analysis unit we used S-Plus to perform the analysis for 
our assignement, this may be or not some use to you. 

___________________________

Ken Ryder:

>try STATA,   information canbe found on the web

_____________________________

Roger Newson:

I can recommend Stata (Statacorp 1999), which does all the above and loads
of other things in survival analysis (and many other areas of stats). Their
web site is http://www.stata.com/.

I hope this is useful.

All the best

Roger

References

Statacorp. Stata Statistical Software: Release 6.0. 1999; College Station,
Texas, USA: Stata Corporation.

--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Medicine
Guy's, King's and St Thomas' School of Medicine


_______________________-

Paul Monaghan:

Try the ICE macro in SAS (I think in the IML package), which uses 
Turnbull's (1976 JASA I think) method for dealing with interval censored 
data, as well as left, right and uncensored data. To my knowledge, there is 
nothing in Splus which does this (please let me know if you find out 
otherwise!)

_________________________


Xavier Draye:

The PROC LIFETEST procedure of SAS does that, according to the methods
described in Kalfleisch and Prentice (...). If you want to use PH-models,
then the procedure LIFEREG would be more appropriate.

The code for LIFETEST is as easy as the following:

proc lifetest data=tmp3 outsurv=tmp4;
  time section*censored(1);
  strata cv;
run;

The TIME statement specifies that SECTION is the time variable and that the
value 1 stands for a censored observation. The STRATA statement specifies
that each value of the variable CV defines a group of observations and that
the survival curves of the different groups are to be compared.












%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Top of Message | Previous Page | Permalink

JiscMail Tools


RSS Feeds and Sharing


Advanced Options


Archives

July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
2006
2005
2004
2003
2002
2001
2000
1999
1998


JiscMail is a Jisc service.

View our service policies at https://www.jiscmail.ac.uk/policyandsecurity/ and Jisc's privacy policy at https://www.jisc.ac.uk/website/privacy-notice

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager