Temporal ventilation distribution: Filling index of the right lung in different body positions.

Results are given as mean (standard deviation). An index >1 indicating a lag (slower filling than the rest of the lung) and an index <1 a lead (faster filling than the rest of the lung). Mean difference (95% confidence interval) to spontaneous breathing is noted in square brackets‡. p-values provided for comparison with the upright position* and for comparison with spontaneous breathing within the respective body position#. n.s. not significant; CF cystic fibrosis; CPAP continuous positive airway pressure; PEP positive end-expiratory pressure. Temporal ventilation distribution: Filling index of the right lung in different body positions.