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. 2021 Mar 18;11:6258. doi: 10.1038/s41598-021-85809-y

Table 1.

Comparison of hospitalized COVID-19 patients with or without vitamin D deficiency (VDD), data presented as number (percentage) for categoricala and mean (SD) for continuous variablesb.

Parameter No VDD (n = 212) VDD (n = 197) P-value
Age (years)b 57.8 (14.7) 46.7 (17.1)  < 0.001
Femalesa 64 (30.2) 63 (32) 0.70
BMI, kg/m2 (n = 136) 27.5 (4.8) 27.2 (4.3) 0.67
Systolic BP (mm of Hg)b 129.8 (14.8) 128.8 (14.9) 0.48
Diastolic BP (mm of Hg)b 78.7 (10) 77.4 (9.7) 0.19
Comorbiditiesa 161 (75.9) 110 (55.8)  < 0.001
Diabetesa 111 (52.4) 77 (39.1) 0.01
Hypertensiona 105 (49.5) 58 (29.4)  < 0.001
CADa 18 (8.5) 16 (8.1) 0.89
CKDa 6 (2.8) 6 (3) 0.90
Hypothyroidisma 38 (17.9) 23 (11.7) 0.08
Cancera 8 (3.8) 3 (1.5) 0.16
Respiratory diseasea 14 (6.6) 10 (5.1) 0.51
Symptomatic casesa 206 (97.2) 186 (94.4) 0.16
Duration of symptomsb (days) 5.8 (3.3) 5.7 (3.2) 0.67
Baseline SpO2 (mm of Hg)b 95.6 (3.5) 95.7 (4.6) 0.84
Baseline severity scoresb 3.3 (0.6) 3.3 (0.6) 0.68
Hospital stay (d)b 10 (5.8) 9.2 (5.6) 0.13
Outcome severity scoreb 3.7 (1.2) 3.6 (1) 0.12
Severe casesa 31 (14.6) 26 (13.2) 0.78
Oxygena 92 (43.4) 68 (34.5) 0.07
ICU admissiona 42 (19.8) 29 (14.7) 0.17
RRTa 6 (2.8) 1 (0.5) 0.07
Inotropic supporta 12 (5.7) 7 (3.6) 0.31
Mortalitya 11 (5.2) 4 (2.0) 0.12
25-OHD (ng/mL)b 43.2 (25.8) 9.8 (5)  < 0.001
PTH (pg/mL)b 47.5 (42.9) 63.5 (54.4) 0.001
Albumin correctedb calcium (mg/dL) 9.2 (1.2) 9 (0.5) 0.02
CRP (mg/L)b 45.1 (56.0) 62.2 (343.7) 0.49
IL-6 (pg/mL)b 45.9 (121) 46.3 (113.5) 0.98
LDH (IU/L)b 301.1 (123.5) 304 (129.3) 0.83
D-Dimer (ng/mL)b 310.8 (722.6) 465.3 (1646.2) 0.22
Ferritin (ng/mL)b 311.1 (514.2) 332.7 (618.7) 0.71