Table 2

Coded EHR events statistics

EHR event type

Count

Lab

38,351,151

Diagnosis (ICD)

27,308,067

Procedure (CPT)

20,536,282

Vital signs

12,316,006

Textual report

12,205,115

Appointment

11,587,466

Prescription

7,522,419

Structured EHR value

7,323,129

Wellness

1,437,046

Electrocardiogram

1,122,398

Microbiology

703,451

Social History

302,698

Race and Ethnicity

78,654

Biopsy

28,317

Cancer History

18,557

Death (confirmed)

1,116

The table presents counts of events by type from the larger set of 75,000 patients used for sub-setting smaller testing cohorts for RetroGuide scenarios.

Huser et al. BMC Medical Research Methodology 2011 11:43   doi:10.1186/1471-2288-11-43