Table 4 Correlation of vitamin D and age, different laboratory, and radiologic findings of COVID-19 patients

R

P value

Age (years)

− 0.117

0.374

TLC (10⁹/L)

− 0.194

0.138

Lymphocytes (10⁹/L)

0.270

0.037*

Neutrophils (10⁹/L)

− 0.182

0.164

Hemoglobin (g/dl)

0.124

0.344

Platelets (10⁹/L)

− 0.044

0.737

Neutrophil-lymphocyte ratio

− 0.295

0.022*

CRP (mg/dl)

− 0.259

0.046*

ESR (mm/h)

− 0.167

0.201

BUN (mg/dl)

− 0.315

0.014*

Serum creatinine (mg/dl)

− 0.256

0.048*

AST (IU/L)

− 0.412

0.001*

ALT (IU/L)

− 0.337

0.008*

Total bilirubin (mg/dl)

0.037

0.778

S. albumin (g/dl)

0.248

0.056

Ferritin (ng/ml)

− 0.463

<0.001*

LDH (IU/L)

− 0.269

0.038*

D-dimer (mg/L)

− 0.382

0.003*