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. 2023 Apr 14:1–13. Online ahead of print. doi: 10.1007/s10266-023-00811-2

Table 3.

COVID-19-related outcomes of patients with and without periodontitis

Variables COVID-19
No periodontitis Periodontitis p value
Hospitalization, n (%)
 No 10 (19.2) 1 (2.1) 0.009*
 Yes 42 (80.8) 46 (97.9)
Hospitalization length (mean ± SD) 16.04 ± 35.84 16.26 ± 15.53 0.969***
ICU, n (%)
 No 43 (82.7) 32 (68.1) 0.105*
 Yes 9 (17.3) 15 (31.9)
Change ICU to SICU, n (%)
 No 52 (100.0) 43 (91.5) 0.047**
 Yes 0 (0.0) 4 (8.5)
Days on ICU (mean ± SD) 0.83 ± 2.11 2.23 ± 4.20 0.042***
Mechanical ventilation, n (%)
 No 50 (96.2) 44 (93.6) 0.666**
 Yes 2 (3.8) 3 (6.4)
Days on mechanical ventilation (mean ± SD) 0.19 ± 0.97 0.43 ± 1.76 0.412***
Death, n (%)
 No 51 (98.1) 47 (100.0) 1.000**
 Yes 1 (1.9) 0 (0.0)
Oxygen therapy, n (%)
 No 19 (36.5) 8 (17.0) 0.042*
 Yes 33 (63.5) 39 (83.0)

ICU intensive care unit, SD standard deviation, SICU semi-intensive care unit

*Pearson chi-square test; **Fisher’s exact; ***Student t test. Bold means statistically significant at p ≤ 0.05