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From |
Steven Samuels <sjhsamuels@earthlink.net> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: stdes, SD for time at risk? |

Date |
Mon, 2 Feb 2009 19:06:56 -0500 |

---

-Steve On Feb 2, 2009, at 6:35 PM, MAY BAYDOUN wrote:

Thank you. Yes, I do have a multiple record data. So, that meanseach visit has a different time depending on how much time elapsedfrom the origin which is 50 years of age. Is there a way to figurethis out with the variables that are created automatically by Stata(i.e. _t0, _st, _t and _d)? I need to find the time elapsed at lastvisit at which each person was at risk and summarize that time forthe whole sample. Thanks for any help you can provide,--- On Mon, 2/2/09, Steven Samuels <sjhsamuels@earthlink.net> wrote:From: Steven Samuels <sjhsamuels@earthlink.net> Subject: Re: st: stdes, SD for time at risk? To: statalist@hsphsun2.harvard.edu Date: Monday, February 2, 2009, 5:53 PM If you have single record data, run -summary- on your failure time variable. If you have multiple record data, keep only one record for each person first and then run -summary-. n Feb 2, 2009, at 11:52 AM, MAY BAYDOUN wrote:Hello Statalisters, I was wondering if you have used the stdes command andwere able to get a standard deviation for time at risk in addition to mean, median and range. I am not sure if that is at all possible. Is there another command one can use to get the SD? Thanks a lot!

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**References**:**Re: st: stdes, SD for time at risk?***From:*MAY BAYDOUN <mbaydoun2002@yahoo.com>

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