Clinical evidence for respiratory insufficiency type II predicts weaning failure in long-term ventilated, tracheotomised patients: a retrospective analysis

Table 5 Length of time between intubation and the first spontaneous breathing trial summarised with respect to weaning outcome

Factor	Weaning success n = 60	Weaning failure n = 64	OR [95% KI]	p value
Time (days) between intubation and 1st SBT
Mean ± SD	31 ± 26	192 ± 484
Median (IQR)	23 (17–36)	40(19–89)
Min–max	2–143	2–2730
Missing	1	1
n (%)
> 30 days	21 (34%)	41 (66%)	1	0.001
≤ 30 days	38 (63%)	22 (37%)	3.37 [1.60, 7.09]

Data are expressed as n (% according to the underlying weaning subgroup), mean ± SD (min–max), median (IQR) as well as missing data (missing)
IQR interquartile range, max maximum value, min minimal value, MV mechanical ventilation, SBT spontaneous breathing trial, SD standard deviation

ISSN: 2052-0492