Table 1.
Characteristics of hemodialysis patients (HDP) and healthy controls of health care worker (HCW).
| Subgroups of HDP | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HCW 39–65 years |
All HDP 37–90 years |
HDP 37–59 years |
HDP 60–69 years |
HDP 70–79 years |
HDP 80–90 years |
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| MD (Q1; Q3), (range: min–max); or n (%) |
MD (Q1; Q3), (range: min–max); or n (%) |
MD (Q1; Q3), (range: min–max); or n (%) |
MD (Q1; Q3), (range: min–max); or n (%) |
MD (Q1; Q3), (range: min–max); or n (%) |
MD (Q1; Q3), (range: min–max); or n (%) |
|||||||
| Subjects | 16 | 72 | 17 | 22 | 22 | 11 | ||||||
| Sex | ♀ | 9 (56.2%) | ♀ | 31 (43.1%) | ♀ | 8 (47.0%) | ♀ | 10 (45.5%) | ♀ | 8 (36.4%) | ♀ | 4 (36.4%) |
| ♂ | 7 (43.8%) | ♂ | 41 (56.9%) | ♂ | 9 (53.0%) | ♂ | 12 (54.5%) | ♂ | 14 (63.6%) | ♂ | 7 (63.6%) | |
| Age (years) | 45.5 (41.2; 54.7), (range: 39.0–65.0) | 68.0 (60.0; 77.0), (range: 37.0–90.0) *** | 54.0 (53.0; −57.0), (range: 37.0–59.0) ns | 64.5 (62.0; 67.0), (range: 60.0–69.0) * | 76.0 (73.5; 77.5), (range: 70.0–79.0) *** | 82.0 (81.0; 83.0), (range: 80.0–90.0) *** | ||||||
| Time on hemodialysis (months) | - | 52.0 (24.5; 111.7), (range: 1.0–552.0) | 52.0 (27.0; 240.0), (range: 11.0–456.0) | 44.0 (23.7; 126.5), (range: 5.0–552.0) | 56.0 (22.0; 102.2), (range: 5.0–360.0) | 49.0 (23.0; 111.0), (range: 1.0–290.0) | ||||||
| Time between 1st and 2nd vac (days) | 22.0 (22.0; 22.0), (range: 22.0–22.0) | 21.0 (21.0; 21.0), (range: 21.0–21.0) | 21.0 (21.0; 21.0), (range: 21.0–21.0) | 21.0 (21.0; 21.0), (range: 21.0–21.0) | 21.0 (21.0; 21.0), (range: 21.0–21.0) | 21.0 (21.0; 21.0), (range: 21.0–21.0) | ||||||
| Time between 2nd vac and sampling (days) | 13.0 (13.0; 13.0), (range: 13.0–19.0) | 17.0 (15.0; 18.0), (range: 15.0–26.0) | 17.0 (15.0; 18.0), (range: 15.0–18.0) | 17.5 (15.0; 18.0), (range: 15.0–26.0) | 17.0 (15.0; 18.0), (range: 15.0–20.0) | 15.0 (15.0; 18.0), (range: 15.0–18.0) | ||||||
| Ab SARS-CoV-2 CLIA (AU/mL) | 800.0 (520.5; 800.0), (range: 340.0–800.0) | 366.5 (89.6; 606.0), (range: 1.8–800.0) *** | 597.0 (410.5; 800.0), (range: 167.0–800.0) ns | 414.0 (132.5; 668.3), (range: 17.0–800.0) ns | 140.0 (35.3; 399.0), (range: 1.8–754.0) *** | 124.0 (27.0; 335.0), (range: 1.8–690.0) *** | ||||||
HCW = healthcare workers; HDP = patients on hemodialysis; MD = Median; Q1 = first quartile, Q3 = third quartile; n = count; vac = vaccination; Ab = antibody, CLIA = ChemiLuminescent ImmunoAssay; AU = Arbitrary Units; mL = milliliter. Statistical analysis: Kruskall–Wallis Test followed by Dunn’s Multiple Comparison Test, ns = not significant compared to HCW, * = p < 0.05 compared to HCW, ** = p < 0.01 compared to HCW, *** = p < 0.001 compared to HCW.