Table 1. Results from the iterative review process.

Evaluation step	Articles reviewed	Articles categorized	IRR	Categories postevaluation
Evaluation 1	655	71	0.4401	8
Evaluation 2	1,062	153	0.5567	8
Evaluation 3	1,215	165	0.6864	8

Notes: Each evaluation step indicates the number of articles that were reviewed, the number that were put into categories of data content for expanding the EHR, the inter-rater reliability (IRR) after all evaluators reviewed a sample of 30 articles, and the final categories after each evaluation.