Computational challenges and human factors influencing the design and use of clinical research participant eligibility pre-screening tools

Table 4 Eligibility criteria

CHF Trials		FM Trials
CHF Trial Criteria	CHF Trial Resultant List	FM Trial Criteria	FM Trial Resultant List
Age ≥ 21	Age ≥ 21	Age ≥ 18	Age ≥ 18
Hospitalization with primary diagnosis of heart failure or cardiomyopathy within the past year.	Hospitalization within the past 12 months	Primary diagnosis of Type II Diabetes	ICD-9 Codes for Type II Diabetes
Ejection Fraction ≥ 40%&Systolic blood pressure ≥130 mmHg	ICD-9 Codes for hypertensive heart failure	Not currently pregnant	ICD-9 Codes for pregnancy within the past 12 months
Ejection Fraction ≤ 35%	ICD-9 Codes for diastolic heart failure	Hemoglobin A1C values within 7-10%	7% < HgA1C < 10%

Clinical trial criteria for both the CHF trials and the FM trials and the resultant list of generalized criteria used for ASAP pre-screening for the validation study.

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