Improving the Identification of Pregnancies in Claims Data: A Descriptive Analysis

In this request, we aimed to characterize pregnancy-related markers within Sentinel’s pregnancy algorithm. This analysis had two primary objectives:

1. To explore the feasibility of identifying isolated (orphan) pregnancy markers observed in varying time periods prior to, between or after pregnancy episodes identified by Sentinel’s pregnancy algorithm.
2. To characterize pregnancy marker codes within pregnancy episodes that are not prioritized by the Sentinel pregnancy algorithm for determining pregnancy duration and start date.

The study period includes data from October 1, 2015 to March 31, 2023. We ran this analysis against the Merative™ MarketScan® Research Databases on February 13, 2025.