[R] how to obtain the OR and 95%CI with 1 SD change of a continue variable
felix
xingwang.ye at gmail.com
Mon Jun 18 15:23:07 CEST 2007
Dear all,
How to obtain the odds ratio (OR) and 95% confidence interval (CI) with
1 standard deviation (SD) change of a continuous variable in logistic
regression?
for example, to investigate the risk of obesity for stroke. I choose the
happening of stroke (positive) as the dependent variable, and waist
circumference as an independent variable. Then I wanna to obtain the OR
and 95% CI with 1 SD change of waist circumference.how?
Any default package(s) or options in glm available now?
if not, how to calculate them by hand?
many thanks.
yours,sincerely,
Xingwang Ye
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