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Table 3 Difference in background characteristics of seropositive and seronegative nursing home residents 2 weeks after the second dose

From: Low humoral immune response to the BNT162b2 vaccine against COVID-19 in nursing home residents undergoing hemodialysis: a case–control observational study

 

Seropositive patients (n = 22)

Seronegative patients (n = 4)

p value

Age (years)

83 (73–88)

98 (84–100)

0.04

Sex (male) (number, %)

8, 36%

2, 50%

0.61

Body mass index (kg/m2)

20.4 (17.3–22.1)

18.6 (17.8–19.2)

0.27

Dialysis vintage (months)

51 (26–119)

96 (52–121)

0.37

Diabetes mellitus (number, %)

4, 18%

0, 0%

0.23

Mean KT/V

1.65 (1.40–1.92)

1.20 (1.30–1.65)

0.35

White blood cell count (/μL)

5110 (4590–5940)

6370 (5380–7280)

0.08

Hemoglobin (g/dL)

10.6 (9.9–11.8)

10.0 (9.7–10.5)

0.36

Blood urea nitrogen (mg/dL)

52 (49–69)

48 (33–62)

0.27

Creatinine (mg/dL)

6.7 (5.8–7.7)

7.2 (6.1–9.8)

0.55

Albumin (g/dL)

3.2 (3.1–3.4)

3.0 (2.7–3.1)

0.045