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Figure 2 | BMC Medical Informatics and Decision Making

Figure 2

From: Increasing the efficiency of trial-patient matching: automated clinical trial eligibility Pre-screening for pediatric oncology patients

Figure 2

Frequencies of the collected EHR fields (a) and descriptive statistics of the unstructured clinical notes (b). *A data entry is a piece of information (e.g. diagnosis) documented during a patient’s visit. If a patient has the same diagnosis/ICD-9 code during multiple visits, we only count the diagnosis/ICD-9 code once for that patient. **Tokens include words, numbers, symbols and punctuations in clinical narratives.

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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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