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Table 3 Plasma cortisol levels (μg/dl)

From: The effects of different weaning modes on the endocrine stress response

Group Initial Weaning 48 hours extubation
Pressure support 25.8 ± 14 27 ± 17 22.9 ± 11
CPAP 22.4 ± 13 28.5 ± 6.9* 20.1 ± 9.6
T-piece 24.8 ± 12 30 ± 11**,† 26.2 ± 6.7*,†,‡
  1. *P < 0.01, **P < 0.001 when compared with the initial level within the group. P < 0.05, pressure support group compared with T-piece group. P < 0.01, continuous positive airway pressure (CPAP) group compared with T-piece group.