Table 3.

Correlation analysis between metric results obtained with optical coherence tomography and histology.

					Correlation coefficient		Significance
					Spearman’s rho (ρ)	Kendall’s tau (τ)	(p)
	Variables
Ovine animal model	Angle values within the individual corneas (θ1, θ2, θ3)a	OCT		θ1, θ2	0.995	0.974	< 0.001
				θ1, θ3	0.994	0.975	< 0.001
				θ2, θ3	0.993	0.967	< 0.001
		Histology		θ1, θ2	0.989	0.971	< 0.001
				θ1, θ3	0.988	0.969	< 0.001
				θ2, θ3	0.990	0.971	< 0.001
	OCT (θA)—histology (θB)				0.872	0.775	< 0.001
Human	Angle values within the individual corneas (θ1, θ2, θ3)*	OCT		θ1, θ2	0.993	0.973	< 0.001
				θ1, θ3	0.993	0.973	< 0.001
				θ2, θ3	0.992	0.965	< 0.001
		Histology		θ1, θ2	0.985	0.966	< 0.001
				θ1, θ3	0.986	0.967	< 0.001
				θ2, θ3	0.984	0.965	< 0.001
	OCT (θA)—histology (θB)				0.837	0.768	< 0.01
Ovine animal model—human			OCT (θA)		0.841	0.762	< 0.01
			Histology (θB)		0.837	0.765	< 0.01

θ = Angle values within the architectural patterns (see text).

OCT Optical coherence tomography.

^aFor this analysis, three angles were evaluated for each image (θ₁, θ₂, θ₃…).