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. Author manuscript; available in PMC: 2019 Aug 30.
Published in final edited form as: Phys Med Biol. 2018 Aug 30;63(17):175006. doi: 10.1088/1361-6560/aad9be

Table 6.

Two-way ANOVA with interaction for Agatston score with 160 mAs DE protocol. Variables with p-value<0.05 are statistically significant.

(a) Vessels with equal-density stenoses

Variables Sum of Squares Degrees of Freedom Mean Square F-value p-value
A (Vessel Diameter) 2555 1 2555 80.168 <0.001

B (Stenosis Size) 57277 2 28638 943.402 <0.001

AB 1338 2 668 22.036 <0.001

Residual 1639 54 30

(b) Vessels with equal-size stenoses.

Variables Sum of Squares Degrees of Freedom Mean Square F-value p-value

A (Vessel Diameter) 3223 1 3223 101.243 <0.001

B (Stenosis Density) 140625 2 70312 2208.605 <0.001

AB 1672 2 836 26.262 <0.001

Residual 1718 54 32