Researchers found a high level of agreement between the NLP analysis and the manual review. For breastfeeding, the positive predictive value (PPV) of the NLP was 98% and the negative predictive value (NPV) was 86%. For history of atopic conditions the PPV was at or near 100%, with a NPV of 97% to 99%, depending on the condition.
For family history of atopic conditions, the PPV was 91% to 100%, depending on the condition, and the NPV was 96% to 99%.
“Childhood asthma risk factors identified (an) NLP algorithm using EHR has excellent concordance with chart review,” researchers wrote.
Using an average time per chart, researchers found that it would take 7 hours to complete a manual review for the information presented in the study, compared to 50 minutes for the NLP.