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calculating crude odds ratio and adjusted odds ratio

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shaikhf...@gmail.com

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Aug 6, 2016, 3:38:49 PM8/6/16
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Dear friends, I am doing analysis to find out predictors of smoking status among university students. In this case I want to calculate adjusted odds ratio. But I do not know how to calculate odds ratio? I just theoretically known that there are two way to calculate adjusted OR. one is stratification and another way is logistic regression. I also can do this with mantel-haenszel test. but HOW????

Could you please provide me an example that how to do this step by step...

Bruce Weaver

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Aug 14, 2016, 12:07:42 PM8/14/16
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On 06/08/2016 3:38 PM, shaikhf...@gmail.com wrote:
> Dear friends, I am doing analysis to find out predictors of smoking status among university students. In this case I want to calculate adjusted odds ratio. But I do not know how to calculate odds ratio? I just theoretically known that there are two way to calculate adjusted OR. one is stratification and another way is logistic regression. I also can do this with mantel-haenszel test. but HOW????
>
> Could you please provide me an example that how to do this step by step...
>

It's not clear what you are asking. If you simply estimate a logistic
regression model with smoking status (1=smoker, 0=non-smoker), the
Exp(B) column in the table of coefficients will show adjusted odds
ratios. If you are asking how this differs from using the
Mantel-Haenszel method, perhaps the following examples will be useful.


http://www.angelfire.com/wv/bwhomedir/spss/pooling_odds_ratios.txt

HTH.
--
Bruce Weaver
bwe...@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/Home
"When all else fails, RTFM."
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