Multi-linear regression analysis of C2-C3 areas.

Normalization coefficients derived by multi-linear regression analysis with C2-C3 total cross-sectional area (TCA, top) and C2-C3 gray matter area (GM area, bottom) as outcome variables and age, total intracranial volume (TICV), ap_vertebra_diameter, sagittal_vertebra_area as independent variables (see Eq. 1 in the text). The adjusted R2 and the %RSD (ratios of the group standard deviation and the respective means) for the calculated values with each model are reported. %RSDmeas refers to the non-normalized measured data.Mean values of the independent variables on the total cohort of subjects:Xmean = Agemean = 48.84 yearsYmean = TICVmean = 1434165.26 mm3Zmean = ap_vertebra_diametermean = 15.63 mmJmean = sagittal_vertebra_areamean = 199.93 mm2Multi-linear regression analysis of C2-C3 areas.