Table 4.

Survival probability according to length of time after admission, by administration of non-invasive ventilation, Somalia, 2020.

Length of time after	No ventilation	Delayed non-invasive ventilation	Non-invasive ventilation on admission
admission (days)	Survival probability (95% CI)	Survival probability (95% CI)	Survival probability (95% CI)
1	0.966 (0.899–0.989)	1.000 (1.000–1.000)	0.739 (0.509–0.873)
2	0.910 (0.827–0.954)	1.000 (1.000–1.000)	0.304 (0.135–0.493)
3	0.828 (0.731–0.893)	1.000 (1.000–1.000)	0.217 (0.079–0.399)
4	0.778 (0.675–0.853)	1.000 (1.000–1.000)	0.087 (0.015–0.242)
5	0.753 (0.647–0.832)	0.714 (0.258–0.920)
7	0.753 (0.647–0.832)	0.571 (0.172–0.837)
9	0.737 (0.627–0.819)	0.571 (0.172–0.837)
14	0.737 (0.627–0.819)	0.429 (0.098–0.734)
15	0.737 (0.627–0.819)	0.214 (0.012–0.586)
16	0.698 (0.564–0.798)	0.214 (0.012–0.586)
21	0.698 (0.564–0.798)

CI, confidence interval.