Evaluation of data completeness in the electronic health record for the purpose of patient recruitment into clinical trials: a retrospective analysis of element presence

Table 3 Completeness of patient information in German electronic health records

	D	F	C
Health Status	0.60	0.77	0.46
Disease, Symptom and Sign	0.81	0.79	0.64
Pregnancy-related activity	0.16	0.38	0.06
Neoplasm status	0.75	0.79	0.59
Disease stage	0.25	0.45	0.11
Allergy	0.17	0.69	0.12
Organ or tissue status	0.74	0.82	0.61
Life expectancy	0	-	0
Lifestyle Choice	0.82	0.82	0.67
Addictive behaviour	0.90	0.82	0.74
Diet	0	-	0
Treatment or Health Care	0.57	0.44	0.25
Pharmaceutical substance or drug	0.35	0.17	0.06
Therapy or surgery	0.74	0.46	0.34
Diagnostic or lab test	0.54	0.36	0.20
Diagnostic or lab results	0.54	0.36	0.20
Demographics	0.85	0.91	0.77
Age	0.95	0.94	0.89
Special patient characteristic	0.33	0.76	0.25
Literacy	0	-	0
Gender	1.00	0.89	0.89
Ethical Consideration	0.08	0.71	0.06
Consent	0.06	0.50	0.03
Enrolment in other studies	0	-	0
Capacity	0.16	0.76	0.12
Patient preference	0	-	0
Compliance with protocol	0	-	0
Total	0.55	0.64	0.35

Detailed legend: D = fraction of documentable patient characteristics, i.e. at least one data element containing data on this characteristic was found, F = Average fraction of patients with any data documented in one of these data elements, C = average completeness of patient data for patient characteristics from the semantic category (C=DxF).

ISSN: 1472-6947