st: Model selection - metareg

["Frank Peter" <frankpeter@Safe-mail.net>]

Dear All,

I am using meta-regression to examine association between log of relative risk and age at which participants were recruited. I want to compare different models (assuming linear, cubic spline - 3, 4, 5 knots). Please, how can I determine which the best fit, I mean which statistics can I used to compare these models

Thanks
Frank
*
*   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/