Application of synthetic index method in the evaluation of rational drug use in primary health institutions

The Multi-stage stratified sampling is used in the survey. 15 counties of Zhejiang Province and 10 primary health institutions of each county are randomly sampled. The 6 days’ outpatient prescriptions of the sample institutions are collected, that come from the first Monday of odd months in 2012. 20 prescriptions a day per institution is checked. 18000 prescriptions of 150 primary health institutions in 15 counties are analyzed.