Impact of an Online Gastrointestinal Symptom History Taker on Physician Documentation and Charting Time: Results from a Pragmatic Controlled Trial (Preprint)
BACKGROUND A potential benefit of electronic health records (EHRs) is that they might save clinician time and improve documentation by auto-generating the history of present illness (HPI) in partnership with patients prior to the clinic visit. We developed an online patient portal called AEGIS (Automated Evaluation of Gastrointestinal [GI] Symptoms) that systematically collects patient GI symptom information and then transforms the data into a narrative HPI which is available for physicians to review in the EHR prior to seeing the patient. OBJECTIVE To compare whether use of an online GI symptom history taker called AEGIS improves provider-centric outcomes vs. usual care. METHODS We performed an interrupted time series study among adults ≥18 yo scheduled for a new patient visit at 4 GI clinics at an academic medical center. Patients who completed AEGIS were matched with controls who underwent usual care in the pre-intervention period as well as those in the intervention period who did not complete AEGIS. We then compared the following outcomes among groups: (i) documentation of alarm symptoms; (ii) documentation of family history of GI malignancy; (iii) number of follow-up visits in a 6-month period; (iv) number of tests ordered in a 6-month period; and (v) charting time (difference between appointment time and time encounter was closed). Multivariable regression models were used to adjust for potential confounding. RESULTS Of the 774 patients who were invited to complete AEGIS, 116 (15.0%) finished it prior to their visit. The 116 AEGIS patients were then matched with 343 and 102 controls in the pre- and post-intervention periods, respectively. There were no statistically significant differences among the groups for documentation of alarm symptoms and GI cancer family history, number of follow-up visits and ordered tests, or documentation time. CONCLUSIONS Use of a validated online HPI-generation portal did not improve physician documentation or reduce workload. Given universal adoption of EHRs, further research examining how to optimally leverage patient portals for improving outcomes are needed.