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From |
Ana Gabriela Guerrero Serdan <[email protected]> |

To |
[email protected] |

Subject |
Re: st: How to calculate mortality ratios |

Date |
Sun, 2 Dec 2007 07:13:40 -0800 (PST) |

Steve, thanks. Yes sorry my ratio should have been x/y. I missed to calculate the total population first as this is in a separate file. I was doing calculations only among those that died from different causes. So from file 2 I need to calculate my total population. I have individual information for each household in the survey. Not sure if I should first generate a count variable? svyset AI06 [pw= expweigh], strata( AI05) gen count=_n svy: total count, over(AI02) then use this to calculate the mortality ratio in file 1 as you indicated. thanks again, Gaby --- Steven Joel Hirsch Samuels <[email protected]> wrote: > Gaby: > > 1. Ratio requires a numerator and denominator: > > svy: ratio myratio = x/y > > svy: ratio dead should return an error message > in Stata 10. > > What are your individual observations? people with > dead indicating > status yes/no, or some other unit? If you have an > 'area' as your > observation, with 'dead' counting deaths and 'pop' > giving the > population total for the area, then > > svy: ratio (mr= dead/pop) > > would work. > > 2. svy: prop death will give proportions dead and > not dead. This > will be correct if your analytic unit is person. > > 3. I suggest that you form new strata by pooling > singletons into > neighboring regions. > > -Steven > On Dec 2, 2007, at 8:25 AM, Ana Gabriela Guerrero > Serdan wrote: > > > Dear Stata Users, > > > > I have two related questions: > > > > 1) Im trying to calcuate mortality ratios for > > different sub-populations using survey data. > > > > Is it very naive from my side to use the following > > commands? > > > > svyset AI06 [pw= expweigh], strata( AI05) > > svy: ratio death, over (Province) > > > > I also get similar results with prop. > > > > 2) I dont get any SE because I have strata with > one > > sampling unit. I see that Stata suggests (as also > some > > books) to delete or collapse the strata with one > > sampling unit. Do you know what are the > implications > > for this? Would I need to collapse the strata > > according to region? > > > > > > thanks, > > Gaby > > > > > > > > Gaby Guerrero Serdan > > > > Deparment of Economics > > Royal Holloway, University of London > > TW20 OEX > > Egham, Surrey > > England, UK > > > http://www.rhul.ac.uk/economics/About-Us/postgrads.html > > http://www.flickr.com/photos/49939890@N00/ > > > > Tel: +44 7912657259 > > > > > > > > > ______________________________________________________________________ > > > ______________ > > Be a better pen pal. > > Text or chat with friends inside Yahoo! Mail. See > how. http:// > > overview.mail.yahoo.com/ > > * > > * For searches and help try: > > * > http://www.stata.com/support/faqs/res/findit.html > > * http://www.stata.com/support/statalist/faq > > * http://www.ats.ucla.edu/stat/stata/ > > Steven Samuels > > [email protected] > 18 Cantine's Island > Saugerties, NY 12477 > Phone: 845-246-0774 > EFax: 208-498-7441 > > > > > * > * For searches and help try: > * > http://www.stata.com/support/faqs/res/findit.html > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > Gaby Guerrero Serdan Deparment of Economics Royal Holloway, University of London TW20 OEX Egham, Surrey England, UK http://www.rhul.ac.uk/economics/About-Us/postgrads.html http://www.flickr.com/photos/49939890@N00/ Tel: +44 7912657259 ____________________________________________________________________________________ Get easy, one-click access to your favorites. Make Yahoo! your homepage. http://www.yahoo.com/r/hs * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: How to calculate mortality ratios***From:*Steven Joel Hirsch Samuels <[email protected]>

**References**:**Re: st: How to calculate mortality ratios***From:*Steven Joel Hirsch Samuels <[email protected]>

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