Standardized data set for school health services: Part 1--getting to big data.

School nurses collect voluminous amounts of data in a variety of ways and use the data to describe trends in students' health and patterns of illness in the student population or to identify ways to improve care. NASN identified years ago that a national school nurse data set was needed to enable data-driven decision making for the millions of children who attend school each day across the United States. Informal work has been done in the past 5 years in preparation for the current joint NASN/ National Association of State School Nurse Consultants workgroup. This article is the first of a two-part series related to the importance of data and national efforts to develop a uniform data set that all school nurses can collect. Collecting data, and collecting it in the same way as other providers, will demonstrate what school nurses do as well as provide the data necessary for robust research on the impact of school nurses on students' health.