Table 2.

Agreement between clinical findings and US results with pooled assessments of 2 examiners for each physical examination method in 2 rounds.

Clinical Finding	US Technique	Examination Technique	Agreement	κ		Sensitivity	Specificity	PPV	NPV
Clinical Finding	US Technique	Examination Technique	Agreement	Cohen	AC1	Sensitivity	Specificity	PPV	NPV
Ballottement	GSUS	DFFT	0.73	0.37	0.53	0.47	0.87	0.68	0.75
	GSUS	TFT	0.67	0.19	0.48	0.20	0.97	0.79	0.66
	PDUS	DFFT	0.81	0.53	0.69	0.60	0.90	0.73	0.84
	PDUS	TFT	0.77	0.30	0.67	0.27	0.97	0.79	0.77
Spongy	GSUS	DFFT	0.74	0.43	0.51	0.65	0.78	0.62	0.80
	GSUS	TFT	0.68	0.31	0.42	0.49	0.80	0.61	0.72
	PDUS	DFFT	0.73	0.39	0.51	0.67	0.75	0.53	0.85
	PDUS	TFT	0.68	0.23	0.47	0.49	0.76	0.41	0.80

GSUS: greyscale ultrasound; PDUS: power Doppler ultrasound; DFFT: dorsal 4-finger technique; TFT: 2-finger technique; PPV: positive predictive value; NPV: negative predictive value; US: ultrasound; AC1: first-order agreement coefficient.