Validation of rapid shallow breathing index displayed by the ventilator compared to the standard technique in patients with readiness for weaning

Table 3 Spearman’s Correlation coefficient and intraclass correlation coefficient between the rapid shallow breathing index measured by the Wright spirometer and the average rapid shallow breathing index value displayed by the ventilator at different time points

	r	P value	ICC	95% CI	P value
Average RSBI_vent at different time points
0–15 s	0.70	< 0.001	0.73	0.52–0.85	< 0.001
0–30 s	0.72	< 0.001	0.74	0.53–0.85	< 0.001
0–45 s	0.74	< 0.001	0.73	0.52–0.85	< 0.001
0–60 s	0.76	< 0.001	0.79	0.61–0.88	< 0.001

CI confidence interval, ICC intraclass correlation coefficient, r Spearman’s correlation coefficient, RSBI_standard rapid shallow breathing index measured by the Wright spirometer, RSBI_vent rapid shallow breathing index displayed by the ventilator

ISSN: 1471-2466