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Re: To perform anova for count data in stata with survey weight [message #15755 is a reply to message #15544]

Mon, 10 September 2018 20:39

Bridgette-DHS
Messages: 3218
Registered: February 2013

Senior Member

Following is a response from Senior DHS Specialist, Tom Pullum:

Sorry for the delay in this response. You may already have solved the problem.

I don't see any obvious reason why you are getting an error message. Can you send a log file?

Personally, I would use Poisson regression and a model such as "poisson no_of_antenatal_visits i.education_level". With anova, you are treating the count as an interval-level outcome. The tests in anova assume that the errors are normally distributed and homoscedastic. Both of those assumptions are implausible for a count. Poisson (and negative binomial) models are more appropriate for an outcome that is a count.

I also recommend that other variables be included, such as the age and/or parity of the woman.

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[Message index]

		To perform anova for count data in stata with survey weight By: Nadia_n_n on Fri, 10 August 2018 03:00
		Re: To perform anova for count data in stata with survey weight By: Bridgette-DHS on Mon, 10 September 2018 20:39

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