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Table 1 Clinical characteristics and laboratory findings on initial presentation

From: Sibling cases of gross hematuria and newly diagnosed IgA nephropathy following SARS-CoV-2 vaccination

Variables

Patient 1

Patient 2

Age, years

15

18

Gender

Male

Male

Duration to hematuria after vaccination

1 day

2 days

Body mass index, kg/m2

22.0

18.2

Hemoglobin, g/dL

13.8

15.7

Albumin, g/dL

5.3

5.2

LDL cholesterol, mg/dL

51

111

Blood urea nitrogen, mg/dL

10

11

Serum creatinine, mg/dL

0.97

0.82

eGFR, mL/min/1.73m2

92

105

Serum sodium, mEq/L

139

139

Serum potassium, mEq/L

4.0

4.2

CRP, mg/dL

0.55

0.52

Serum HCO3-, mEq/L

28.4

25.9

Urinary protein, (-) - (3+)

3+

1+

Urinary protein, g/gCreatinine

0.9

0.4

Urinary occult blood, (-) - (3+)

3+

3+

Urinary ß2-microglobulin, μg/L

125

72

Urinary NAG, IU/L

1.8

3.0

  1. Abbreviations: CRP C-reactive protein, eGFR estimated glomerular filtration rate, HCO3- bicarbonate, LDL low-density lipoprotein, NAG N-acetyl-glucosaminidase