Fig. 5

SROC plot of sensitivity and specificity in subgroup analyses, according to A = Patient Spectrum, B = Ultrasound Operator, C = Timing of Ultrasound, D = Ultrasound Device, E = Type of Ultrasound Protocol, F = Reference Standard, G = Target Condition. Diamond: summary estimate, dashed line: 95% confidence region, dotted line: 95% prediction region