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. 2021 Oct 1;28(12):2626–2640. doi: 10.1093/jamia/ocab202

Table 2.

Reported challenges related to using EHR data in pragmatic trials

Survey Question: (Yes/No) Did you experience any challenges related to: # Projects reporting: n = 20 New projects n = 2 (10%) Early phase projectsa n = 4 (20%) Middle phaseb projects n = 7 (35%) Complete or near complete n = 7 (35%)
IT staff turnover 11 (55%) 1 (5%) 1 (5%) 3 (15%) 6 (30%)
Integrating data from heterogeneous systems 11 (55%) 1 (5%) 2 (10%) 4 (20%) 4 (20%)
Using EHRs to support intervention delivery or health system change 10 (50%) 2 (10%) 1 (5%) 3 (15%) 4 (20%)
Missing data 8 (40%) 0 3 (15%) 0 5 (25%)
Assessing the validity or accuracy of EHR data 7 (35%) 0 2 (10%) 1 (5%) 4 (20%)
Acquiring data 7 (35%) 1 (5%) 2 (10%) 2 (10%) 2 (10%)
Use of free-text or narrative data from EHR 6 (30%) 0 0 2 (10%) 4 (20%)
Data cleaning 6 (30%) 0 1 (5%) 1 (5%) 4 (20%)
Completeness of data across EHRs 6 (30%) 0 2 (10%) 1 (5%) 3 (15%)
Interoperability 5 (25%) 1 (5%) 0 1 (5%) 3 (15%)
Data quality assessment 5 (25%) 0 1 (5%) 0 4 (20%)
Requesting data (ie, knowing which data are available) 5 (25%) 1 2 (10%) 0 2 (10%)
Identification and use of clinical phenotype definitions 4 (20%) 0 1 (5%) 1 (5%) 2 (10%)
Determining or negotiating the frequency of data pulls 4 (20%) 0 0 1 (5%) 3 (15%)
Gaining permission to use data 2 (10%) 0 1 (5%) 0 1 (5%)
Need to upload data or write to EHRs 1 (5%) 0 1 (5%) 0 0
a

Early-phase projects are just transiting from planning to implementing the trial.

b

Middle-phase projects are enrolling and collecting data but early; complete or near complete are nearly done with enrollment.

EHR: electronic health record.