TABLE 3.

Comparison of weaning variables in the weaning success (Group S) and failure groups (Group F)

Weaning parameters	group S (n = 33)	group F (n = 27)	P-value
LUS (before SBT)	15.06 ± 2.16	17.44 ± 2.59	< 0.001
LUS (after SBT)	16.12 ± 2.17	19.85 ± 2.56	< 0.001
DTF (%)	30.87 ± 5.32	27.88 ± 6.24	0.04
VTI change (%)	13.63 ± 3.44	9.11 ± 4.59	< 0.001
RSBI	80.90 ± 22.62	84.07 ± 16.19	0.54
Vt (expired) (mL)	377.01 ± 71.08	355.29 ± 46.13	0.17
LUS change	1 (0–2)	2 (1–4)	0.005
Delta pO2 (mmHg)	15.2 (10–21)	13.3 (5–25)	0.67

The data are presented as mean + SD/median (IQR) as applicable. LUS change and delta pO2 are presented as median (IQR).

LUS – lung ultrasound score, DTF – diaphragmatic thickness fraction, SBT – spontaneous breathing trial, VTI – velocity time integral, Vt – tidal volume, RSBI – rapid shallow breathing index