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 |