03 October 2022 : Clinical Research
Effect of Vitamin D Concentration on Course of COVID-19
Magdalena Dominika Szerszeń12ABDEF*, Aleksandra Kucharczyk3BDEF, Katarzyna Bojarska-Senderowicz3BDEF, Monika Pohorecka32ADEF, Andrzej Śliwczyński4CD, Janusz Engel5C, Tomasz Korcz6B, Dariusz Kosior7A, Irena Walecka8A, Wojciech Stefan Zgliczyński9A, Waldemar Wierzba1011G, Adam Jerzy Sybilski32ADFDOI: 10.12659/MSM.937741
Med Sci Monit 2022; 28:e937741
Table 3 Correlation between vitamin D level in serum and oxygen therapy (Mann-Whitney U test).
| Mann-WhitneyMann-Whitney U test | ||
|---|---|---|
| Analyzed variables | Vitamin D (ng/ml); Oxygen therapy | |
| Numerosity/not interpreted | 0 | |
| Numerosity/lack of data | 0 | |
| Significance level | 0.05 | |
| Adjustment for continuity | Yes | |
| Grouping variable | Oxygen therapy | |
| Mann-Whitney | ||
| U statistic | 24 092.5 | |
| U’ statistic | 37 771.5 | |
| Two-sided value (asymptotic) | 0.0001 | |
| Z statistic (with correction for tied ranks) | 4.2345 | |
| Two-sided (asymptotic) P value | 0.000023 | |
| * Patients without oxygen therapy; ** patients who need oxygen therapy. | ||
| Summary | ||
| Group | 0* | 1** |
| Abundance | 296 | 209 |
| Median | 18.15 | 12.6 |
| Lower quartile | 11.75 | 7.2 |
| Upper quartile | 28.6 | 24 |
| * Patients without oxygen therapy; ** patients who need oxygen therapy. | ||