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From |
"Kristian Wraae" <Kristian_Wraae@vip.cybercity.dk> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
SV: S: SV: st: Survey - raking - calibration - post stratification - calculating weights |

Date |
Mon, 8 Dec 2008 08:55:48 +0100 |

Ok, thanks. Now I understand how to do the raking procedure. I have one question though. Since I have a two step inclusion procedure wouldn't it be more accurate to rake in two steps. Example: I know the distribution of medication amongst the 3745 men. But the 3745 men differs from the 4975 men by being slightly younger and we know that the older you get the more medicin do you get. That also goes for physical activity and smoking. So if I calculate the expected prevalences amongst the 4975 (in order to rake the 600) from the 3750 I risk making a mistake (underestimating the prevalences in the baclground population). I guess should be calculating the all prevalences from the 4975, but I don't those data. So wouldn't it be more correct to: 1. Rake the 3750 so they match the 4975 on age and geography. 2. Calculate all the expected prevalences on age, medication, smoking, physical activity ect from the now raked 3750 (as we would expect them to be had we had a 100% response rate). 3. Use these prevalences to rake the 600 as you showed me? Thanks Kristian -----Oprindelig meddelelse----- Fra: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] På vegne af Steven Samuels Sendt: Monday, December 08, 2008 1:58 AM Til: statalist@hsphsun2.harvard.edu Emne: Re: S: SV: st: Survey - raking - calibration - post stratification - calculating weights On Dec 7, 2008, at 3:33 PM, Kristian Wraae wrote: > There is a command called svymean. Isn't that the correct command? In Stata 8 it is, but not in Stata 10. Steven * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: SV: S: SV: st: Survey - raking - calibration - post stratification - calculating weights***From:*Steven Samuels <sjhsamuels@earthlink.net>

**References**:**Re: S: SV: st: Survey - raking - calibration - post stratification - calculating weights***From:*Steven Samuels <sjhsamuels@earthlink.net>

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