Flow of patients and measurements through the phases of the study.

<p>Flow of patients and measurements through the phases of the study.</p

Univariable, multilevel linear regression analyses of scaling exponent alpha and sample entropy of body temperature.

<p>Univariable, multilevel linear regression analyses of scaling exponent alpha and sample entropy of body temperature.</p

Scaling exponent alpha (T_alpha) over postnatal age.

<p>T_alpha decreased from a mean (SD) of 1.67 (0.18) on day one of life to 1.46 (0.22) on day five of life (p<0.001).</p

Scaling exponent alpha (T_alpha) over respiratory support.

<p>T_alpha grouped by the level of respiratory support present during a temperature measurement. Multilevel linear regression analysis demonstrated a significant positive association between T_alpha and stepwise increase of respiratory support from none to continuous positive airway pressure (CPAP), and from CPAP to endotracheal ventilation (p < 0.001, R² = 0.29).</p

Sensitivity analysis related to amount and fragmentation of data.

<p>Sensitivity analysis related to amount and fragmentation of data.</p