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| From | Mikkel Brabrand <mikkel@brabrand.net> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | st: Simplification of formula in logistic regression |
| Date | Sun, 15 May 2011 16:43:19 +0200 |
All, I have performed a logistic regression analysis including five variables and one outcome. However, I would like to simplify the formula significantly for clinical use. So, instead of the formula been something like -12.22+2.33*systolic blood pressure-1.21*temperature etc., I would like to make a scoring system where the score is calculated on basis of the measured values of the vital signs. An example could be something like this .................2 points..1 point...0 points...1 point.....2 points Pulse ...........-30........31-50....51-100....101-200..201- Sys. BP.........-60........61-100..101-200...201- However, I have no idea how to find the optimal cut-off points. Do any of you have a suggestion how to do this statistically correct? * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/