Data suppression strategies used during surveillance data release by sexually transmitted disease prevention programs.

Objectives: This study investigates the data suppression or statistical disclosure limitation (DL) practices used during surveillance data Release by sexually transmitted disease (STD) prevention programs.

Methods: We classified DL strategies from a Web-based data query system that collected data from state health departments. We tested mean STD incidence Rates in states that used data suppression versus those that did not.