Hand-held cardiac ultrasound examinations performed in primary care patients by nonexperts to identify reduced ejection fraction

Table 4 Agreement (LVEF < 50%) between focused cardiac ultrasound (FCU) and comprehensive ultrasound (reference)^a

Number of examinations	Examination result		Total number of examinations
Number of examinations	Concordance	Discordance	Total number of examinations
1–10	19 (76.0%)	6 (24.0%)	25
11–20	26 (66.7%)	13 (33.3%)	39
> 20	62 (81.6%)	14 (18.4%)	76
Total	107 (76.4%)	33 (23.6%)	140

^aThe concordance or discordance by the number of FCU examinations independently performed per examiner in 100 study patients after an initial training period were compared with the reference method. Concordance was the agreement on the assessment of LVEF (< 50% cut-off) by both methods
LVEF Left ventricular ejection fraction

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