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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Int J Med Inform. 2016 Jul 29;94:271–274. doi: 10.1016/j.ijmedinf.2016.07.009

Table 1.

Resolution of initially unmatched observations

Observation Type n Resolution IDR Correct? Discrepancy Type
Lab Result 5 EHR used lab IDs while IDR merged these to patient’s MRN Yes Design Decision
Race 1 Field was empty in EHR at time of ETL but updated before validation Yes Timing Issue
Medication 8 Route of admin deliberately not captured by IDR but displayed in EHR Yes Design Decision
Diagnosis 1 EHR listed diagnosis twice for same date; IDR considers this just one observation as it occurs on the same date Yes Design Decision
Lab Result 1 IDR observation order date (near midnight) confused with EHR collection date (of the following day) Yes Design Decision
Diagnosis 1 IDR observation found in EHR after user’s account settings modified Yes Reviewer Setting
Medication 1 IDR observation found in EHR after user’s account settings modified Yes Reviewer Setting
Lab Result 1 IDR observation order date (near midnight) confused with EHR collection date (of the following day) Yes Design Decision

EHR=electronic health record ID=identification IDR=Integrated Data Repository MRN=medical record number ELT=extract load transform