Table 3.

Intraclass correlation – intra-observer variation.

	Intra-Reviewer 1		Intra-Reviewer 2		Inter-reviewer
	r	Confidence interval	r	Confidence Interval	r	Confidence interval
RIC2.THICK	0.931	(0.837–0.972)	0.894	(0.757–0.957)	0.601	(0.392–0.789)
RIC3.THICK	0.965	(0.916–0.986)	0.773	(0.519–0.903)	0.682	(0.493–0.839)
LIC2.THICK	0.871	(0.707–0.945)	0.884	(0.734–0.952)	0.803	(0.661–0.905)
LIC3.THICK	0.970	(0.928–0.988)	0.919	(0.810–0.967)	0.668	(0.474–0.830)
RIC2.DEN	0.812	(0.589–0.920)	0.812	(0.591–0.921)	0.685	(0.496–0.840)
RIC3.DEN	0.627	(0.274–0.832)	0.739	(0.457–0.887)	0.722	(0.545–0.861)
LIC2.DEN	0.868	(0.702–0.945)	0.811	(0.588–0.920)	0.817	(0.682–0.913)
LIC3.DEN	0.908	(0.785–0.962)	0.903	(0.771–0.961)	0.841	(0.717–0.927)

Intra-reviewer 1: ICC of reviewer 1 over two measurements.

Intra-reviewer 2: ICC of reviewer 2 over two measurements.

Inter-reviewer: ICC of all measurements for both reviewers by site.

RIC2/3.THICK – 2^nd/3rd right intercostal thickness measurements.

LIC2/3.THICK – 2^nd/3^rd left intercostal thickness measurements.

RIC2/3.DEN – 2^nd/3^rd right intercostal echogenicity measurements.

LIC2/3.DEN – 2^nd/3^rd left intercostal echogenicity measurement.