Table 3. Mean, median, SD, RI (95% prediction interval) and 90% CI for VHS, VLAS and RLAD.

	N	mean [v]	median [v]	SD	RI	(90% CI of RI)
VHS RL	32	11.25	11.2	± 0.62	10.1–12.8	(10.1–10.5)—(11.9–12.8)
VHS LL	30	11.01	11	± 0.70	9.4–12.6	(9.4–10.3)—(11.8–12.6)
VLAS	30	1.96	2.0	± 0.38	1.1–2.8	(1.1–1.6)—(2.3–2.8)
RLAD	30	1.59	1.6	± 0.34	0.7–2.4	(0.7–1.3)—(1.9–2.4)

Abbreviations: CI, confidence interval; N, number of subjects; LL, left lateral; RI, reference interval; RL, right lateral; RLAD, radiographic left atrial dimension; SD, standard deviation; v, thoracic vertebral unit; VHS, vertebral heart score; VLAS, vertebral left atrial size.