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. Author manuscript; available in PMC: 2010 May 3.
Published in final edited form as: Stress. 2010 May;13(3):258–268. doi: 10.3109/10253890903349501

Table II.

Hierarchical linear model estimates for effects of time and gestational age at test predicting HR (a) and MAP (b) measurements.

Parameter SE P
(a) HR (beats/min)
 Intercept 78.97 0.838 < 0.001
 Time 2.207 0.165 < 0.001
 Time2 −0.1009 0.0075 < 0.001
 Intercept × gestational age at test 0.5151 0.0617 < 0.001
 Time × gestational age at test −0.0509 0.0097 < 0.001
 Time2 × gestational age at test 0.0021 0.0004 < 0.001
(b) MAP (mmHg)
 Intercept 76.85 1.052 < 0.001
 Time 2.299 0.188 < 0.001
 Time2 −0.1020 0.0091 < 0.001
 Intercept × gestational age at test 0.0764 0.0647 0.239
 Time × gestational age at test −0.0431 0.0149 0.005
 Time2 × gestational age at test 0.0018 0.0007 0.012