Table 3. Coefficients of Linear Regression Model of MRA according to selected variables
Socio- individual variables Coefficients p -value Coefficient of Confidence Interval 90%
Coefficient Standard deviation High Low
Fixed value 27.58 0.11 0.00 38.54 16.61
Mother's age -0.016 0.04 0.02 0.06 -0.03
Mother's ethnicity -1.06 1.4 0.44 1.71 -3.85
Mother's education -0.12 0.03 0.01 0.16 -0.02
Mother's job 0.24 0.2 0.23 0.65 -0.16
Smoking 1.27 1.43 0.37 4.11 -1.56
Economic satisfaction -0.21 0.16 0.02 0.5 -1.05
Participation in care 1.03 1.04 0.52 8.73 -4.51
Father's age -0.03 0.08 0.64 0.13 -0.2
Father's education -0.25 0.4 0.52 0.55 -1.06
Father's job 0.33 0.32 0.29 0.97 -0.29