Table 2.

Prevalence of hyperdense mineralized foci in all motion segments with or without ectopic mineral bridging of the IVD as determined by µCT, in spines that meet or do not meet the diagnostic criteria for DISH

IVD	Spines meeting the criteria for DISH (n = 9)			Spines not meeting the criteria for DISH (n = 9)
	Hyperdense foci			Hyperdense foci
	Yes	No	Total	Yes	No	Total
Bridge	58	9	67	12	4	16
No Bridge	14	13	27	26	35	61
Total	72	22	94	38	39	77
	Two-sided, Fisher’s exact test (α = 0.05); P = 0.000 8			Two-sided, Fisher’s exact test (α = 0.05); P = 0.026 3

Data are binary counts (yes/no) for the presence of hyperdense foci within individual motion segments related to the presence or absence of ectopic mineral bridging the IVD. Data are presented for two categories, spines that meet or do not meet the diagnostic criteria for DISH