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Table 4 Estimates for the fixed and random effects identified by the (longitudinal) mixed-effects model for body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), and adjusted BMI effect on MAP (MAP-BMI), in normotensive (NT) and chronic hypertensive (HT) women

From: Relationship between body mass index and mean arterial pressure in normotensive and chronic hypertensive pregnant women: a prospective, longitudinal study

  Fixed effects Coefficient Standard error p-value Random effects Standard Deviation (95 % CI)
BMI Intercept 3.206 0.009 <0.001 Intercept 0.158 (0.117, 0.212)
HT (vs. NT) 0.124 0.034 <0.001 - -
Time 0.067 0.006 <0.001 - -
(Time)2 0.167 0.006 <0.001 - -
SBP Intercept 183.644 3.692 <0.001 Intercept 11.237 (10.058, 12.553)
HT (vs. NT) 16.034 1.166 <0.001 - -
Time −346.487 20.000 <0.001 Time 18.351 (16.601, 20.285)
(Time)2 539.023 32.389 <0.001 - -
(Time)3 −253.282 16.192 <0.001 - -
DBP Intercept 57.967 3.905 <0.001 Intercept 7.036 (5.702, 8.683)
HT (vs. NT) 11.954 0.974 <0.001 - -
Time 32.958 21.255 0.121 Time 15.327 (13.516, 17.380)
(Time)2 −63.105 35.012 0.072 - -
(Time)3 38.120 17.863 0.033 - -
MAP Intercept 96.181 2.902 <0.001 Intercept 6.719 (5.802, 7.780)
HT (vs. NT) 13.014 0.851 <0.001 - -
Time −74.081 15.754 <0.001 Time 12.745 (11.443, 14.196)
(Time)2 107.357 25.840 <0.001 - -
(Time)3 −44.409 13.116 0.001 - -
MAP-BMI Intercept 91.209 3.026 <0.001 Intercept 6.509 (5.604, 7.562)
HT (vs. NT) 12.283 0.837 <0.001 - -
BMI 0.210 0.039 <0.001 - -
Time −75.634 15.635 <0.001 Time 12.713 (11.422, 14.150)
(Time)2 108.038 25.629 <0.001 - -
(Time)3 −45.221 13.004 0.001 - -
  1. The NT women were designated as the reference category