Coefficients     Intercept age BMI sex     Std Std:E p  value Std Std:E p  value Std Std:E p  value Std Std:E p  value SBP OLS 96.862 1.285 <0.001 1.929 0.117 <0.001 3.201 0.285 <0.001 -0.93 0.565 0.0999   SUR 96.933 1.279 <0.001 1.93 0.117 <0.001 3.202 0.285 <0.001 -1.083 0.493 0.0285 DBP OLS 49.1 1.281 <0.001 1.047 0.12 <0.001 1.305 0.29 <0.001     SUR 49.1 1.281 <0.001 1.047 0.12 <0.001 1.305 0.29 <0.001

Table 3: Coefficients estimates and ratio of the mean square error of the multivariate model (SUR) to the univariate models (OLS) in Cardiovascular Diseases Risk Factors in Portuguese Youngsters study results.