NADP has been updating NTN Preliminary Data Review procedures from a one-by-one sample review to a more streamlined approach, focusing on only samples meeting criteria that indicate they could need edits. As the new approach to NTN Data Review has begun to be used, there has been a need for comparisons to ensure data quality is maintained. We have been monitoring several general dataset conditions including sample condition (notes) code frequencies, sample validity rates, and chemistry value distributions to this end. Comparisons of these parameters in datasets reviewed in the new process to 10-year historic data has overall shown no major discrepancies in data quality.

¹ Association of Public Health Laboratories (APHL) Fellow

² Wisconsin State Laboratory of Hygiene, University of Wisconsin-Madison, Madison, WI

* Corresponding author: jean.steele@slh.wisc.edu