Table 3. Comparison of the median cortisol levels of survivors and non-survivors.

Groups	Median cortisol level	Interquartile range	Groups	P-value
Group 1 survivor (n = 123)	16.3	13.45-18.92	Group 1 non-survivor	0.624
			Group 2 survivor	< 0.001
			Group 2 non-survivor	< 0.001
Group 1 non-survivor (n = 17)	18.4	16.11-19.56	Group 1 survivor	0.624
			Group 2 survivor	0.006
			Group 2 non-survivor	< 0.001
Group 2 survivor (n = 100)	19.05	17.76-22.54	Group 1 survivor	< 0.001
			Group 1 non-survivor	0.006
			Group 2 non-survivor	< 0.001
Group 2 non-survivor (n = 44)	31.8	29.64-34.92	Group 1 survivor	< 0.001
			Group 1 non-survivor	< 0.001
			Group 2 survivor	< 0.001

Group 1 = COVID-19 negative patients, Group 2 = COVID-19 positive patients

Comparisons between groups were made using the Kruskal-Wallis test and one-way analysis of variance. Multiple comparisons between groups were made using the post-hoc Tamhane T2 test.

P < 0.05 = significant (shown in bold).