st: chi2 test for trend with survey data

[rafaelcla <rafaelcla@uol.com.br>]

Dear Listers,

I want to test the proportion of smokers in four different groups for linear trend (chi2). Usually I solve this using "nptrend" but this time I'm dealing with survey data (and so, sampling weights). How to proceed with this test in this data??? (should I just use logistic regression???) 

Best,  

Rclaro 

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