A health care facility participating in a statewide study on cleft lip and cleft palate would most easily collect the initial data from which source?

• A. Birth defects registry
• B. Hospital discharge data
• C. Claims data
• D. Pharmacy records

Answer: (A)

The key idea is using a population-based system that is built to capture congenital anomalies across a defined group. A birth defects registry is designed to identify and track birth defects like cleft lip and cleft palate within a statewide population, collecting standardized data on cases as they occur. Because it aims to enumerate all occurrences in a defined population, it provides a broad, representative, and ready-made source of initial cases and baseline information for the study.

Hospital discharge data depend on what is coded during hospital stays, so they can miss cases treated outside hospitals or be incomplete if coding isn’t consistent. Claims data are based on billing records and may lag, be incomplete, or lack detailed clinical information. Pharmacy records show medications and may not directly reflect a birth defect diagnosis at all. For starting a statewide study on cleft lip and cleft palate, the birth defects registry offers the most direct, comprehensive starting point.