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 4 Correlation between age, vitamin D serum level, and oxygen therapy (MANOVA test).
| One-way MANOVA | ||||
|---|---|---|---|---|
| Age | VIT D 3 (ng/ml) | |||
| SS [BG] | 45 041,87756 | 1592.355784 | ||
| SS [WG] | 173 811.4769 | 103 307.1697 | ||
| df [BG] | 1 | 1 | ||
| df [WG] | 503 | 503 | ||
| F-statistic | 130.348495 | 7.75314 | ||
| value | <0.000001 | 0.005564 | ||
| Equality of variance – Brown-Forsythe | ||||
| F-statistic | 39.76341 | 0.152249 | ||
| value | <0.000001 | 0.69656 | ||
| Equality of variance – Levene | ||||
| F-statistic | 38.732907 | 0.847033 | ||
| value | <0.000001 | 0.357834 | ||
| F correction [Brown-Forsythe] | ||||
| F-statistic | 145.381197 | 7.789529 | ||
| Degrees of freedom | 1/502,76916 | 1/451.665496 | ||
| value | <0.000001 | 0.005478 | ||
| F correction [Welch] | ||||
| F-statistic | 145.381197 | 7,789529 | ||
| Degrees of freedom | 1/502.76916 | 1/451.665496 | ||
| value | <0.000001 | 0.005478 | ||
| * Patients without oxygen therapy; ** patients who need oxygen therapy. | ||||
| MANOVA for independent groups | ||||
| Univariate MANOVA for independent groups | ||||
| Variables analyzed | Age; vitamin D3 (ng/ml); Oxygen therapy | |||
| Numerosity/uninterpreted | 0 | |||
| Numerosity/lack of data | 0 | |||
| Significance level | 0.05 | |||
| Grouping variable | Oxygen therapy | |||
| Numerosity | 505 | |||
| Number of groups | 2 | |||
| Number of variables in the model | 2 | |||
| Wilk’s lambda | 0.777974 | |||
| Eta-square | 0.222026 | |||
| df1 | 2 | |||
| df2 | 502 | |||
| F-statistic | 71.632777 | |||
| value | <0.000001 | |||
| Hotelling-Lawley Trace | 0.28539 | |||
| Eta-square | 0.222026 | |||
| df1 | 2 | |||
| df2 | 502 | |||
| F-statistic | 71.632777 | |||
| value | <0.000001 | |||
| Pillai-Bartlett Trace | 0.222026 | |||
| Eta-square | 0.222026 | |||
| df1 | 2 | |||
| df2 | 502 | |||
| F-statistic | 71.632777 | |||
| value | <0.000001 | |||
| BOX | ||||
| Degrees of freedom 1 | 3 | |||
| Degrees of freedom 2 | 15 466 391.6 | |||
| BOX M statistic | 29.556415 | |||
| F-statistic | 9.807953 | |||
| value | 0.000002 | |||
| * Patients without oxygen therapy; ** patients who need oxygen therapy. | ||||
| Descriptive statistics | ||||
| 0* | 1** | |||
| Mean | Standard deviation | Mean | Standard deviation | |
| Age | 53.293919 | 20.764003 | 72.469 | 14.971776 |
| Vitamin D3 (ng/ml) | 21.318311 | 14.411123 | 17.713 | 14.216971 |
| * Patients without oxygen therapy; ** patients who need oxygen therapy. | ||||