From: Association between the severity of periodontitis, COVID-19, C-reactive protein and interleukin-6 levels in hospitalized patients: a case‒control study
Periodontitis Group
Mean + Standard Deviation (days)
Median (days)
Interquartile Range (days)
Kruskal–Wallis test
HP
8.0 ± 3.88
7.0
5.0
Kruskal–Wallis H = 11.245
P Value = 0.004*
MP
9.64 ± 7.95
7.5
SP
12.74 ± 10.84
9.0
8.0