Table 2. Atelectatic Volumes
Data are presented as median, first (25%) quartile, and third (75%) quartile.
Significant difference (Mann–Whitney U test)
between *ZEEP and CPAP,
between †CPAP and ARS,
between ‡ZEEP and ARS. All P < 0.05.
ARS = alveolar recruitment strategy group; CPAP = continuous positive end-expiratory group; ZEEP = zero end-expiratory pressure group.