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Table 1 Demographics and characteristics of the study population

From: Limitations of free-form-text diagnostic requisitions as a tool for evaluating adherence to appropriate use criteria for transthoracic echocardiography

Variable Study population
n = 1303 (%)
Age* 65 (52-76)
Male 731 (56.1)
Inpatients 318 (24.4)
Referring physician  
Primary care physicians 252 (19.3)
Cardiologists 639 (49.0)
Internal medicine [excluding cardiology] 136 (10.4)
Cardiac surgeons 85 (6.5)
Other specialists 191 (14.7)
Prior transthoracic echocardiogram 712 (54.6)
Inadequate requisition 341 (26.2)
Indication  
General evaluation of cardiac structure and function 343 (26.3)
Evaluation of valvular function 315 (24.2)
Evaluation of intracardiac and extracardiac structures and chambers 206 (15.8)
Evaluation of hypertension, heart failure, or cardiomyopathy 202 (15.5)
Cardiovascular evaluation in an acute setting 106 (8.1)
Adult congenital heart disease 49 (3.8)
Evaluation of aortic disease 24 (1.8)
  1. *Data are presented as medians (25th-75th percentile).
  2. Based on the ACCF 2011 AUC categories of indications [9].