回归系数显著性检验除女性18 ~ 25与26 ~ 45岁两组间无显著性差异外，其他各组间的差异均有高度显著性。

There were significant differences between all of aged groups in regression coefficient significance tests, except between 18-25 and 26-45 aged group in female.

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采用正交多项式回归分析法建立回归模型，并对回归方程和回归系数进行显著性检验。

The method of orthogonal polynomial regression was used for regression modeling, and then the regression equations and regression coefficients were tested for significance.

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模型的相关系数为0.66，通过了回归方程和回归系数的检验。

The correlation coefficient of this model was 0.66, which passed the validation of regression equation and regression coefficients.

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