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Table 2 Demographic and clinical characteristics of the recovery vs. non-recovery group

From: Recovery of new-onset kidney disease in COVID-19 patients discharged from hospital

  Recovery group Non-recovery group p value
Clinical characteristics No. Summary No. Summary
Age, years 130 62 (50, 69) 13 72 (56, 82) 0.034
Male patients, No (%) 130 77 (59.2) 13 8 (61.5) 0.252
Fever on admission, No (%) 130 41 (31.5) 13 5 (38.5) 0.756
Systolic blood pressure, mmHg 130 127 (114, 141) 13 139 (121, 147) 0.180
Diastolic blood pressure, mmHg 130 80 (72, 88) 13 80 (70, 89) 0.974
Smoking, No (%) 130 7 (5.4) 13 2 (15.4) 0.191
Any comorbidity, No (%) 130 62 (47.7) 13 7 (53.8) 0.775
 Chronic lung disease, No (%) 130 8 (6.2) 13 2 (15.4) 0.226
 Diabetes, No (%) 130 24 (18.5) 13 2 (15.4) > 0.999
 Hypertension, No (%) 130 44 (33.8) 13 4 (30.8) > 0.999
 Tumor, No (%) 130 7 (5.4) 13 0 (0.0) > 0.999
Blood urea nitrogen, mg/dL 130 5.0 (3.9, 6.2) 13 4.8 (3.4, 6.6) 0.763
Admission SCr, mg/dL 130 77 (62, 92) 12 83 (60, 96) 0.577
Peak SCr, mg/dL 130 84 (67, 99) 13 89 (65, 98) 0.897
Discharge SCr, mg/dL 96 66 (60, 82) 10 83 (69, 89) 0.015
Admission eGFR, ml/min/1.73m2 130 88 (72, 100) 12 81 (59, 91) 0.182
Peak eGFR, ml/min/1.73m2 130 81 (68, 93) 13 73 (48, 92) 0.478
Discharge eGFR, ml/min/1.73m2 96 94 (84, 103) 10 74 (66, 82) 0.003
Admission proteinuria 109 106 (97.2) 11 11 (100.0) 0.443
 1+ 109 91 (83.5) 11 8 (72.7)  
 2 + ~ 3+ 109 15 (13.7) 11 3 (27.3)  
Peak proteinuria 124 118 (95.1) 12 12 (100.0) 0.341
 1+ 124 99 (79.8) 12 8 (66.7)  
 2 + ~ 3+ 124 19 (15.3) 12 4 (33.3)  
discharge proteinuria 37 8 (21.6) 3 2 (66.6) 0.024
 1+ 37 8 (21.6) 3 1 (33.3)  
 2 + ~ 3+ 37 0 (0.0) 3 1 (33.3)  
Leukocyte count, × 109/L 130 6.3 (4.6, 8.5) 13 6.2 (5.0, 9.2) 0.866
Lymphocyte count, × 109/L 130 0.8 (0.6, 1.0) 13 1.0 (0.7, 1.2) 0.072
Platelet count, × 109/L 130 195 (149, 263) 13 265 (142, 347) 0.161
Hemoglobin, g/L 130 129 (121, 139) 13 125 (114, 128) 0.114
D-dimer, mg/L 123 41 (19, 69) 12 31 (20, 40) 0.120
hs-CRP, mg/L 123 88 (38, 135) 11 64 (13, 107) 0.219
Admission to intensive care unit, No (%) 130 7 (0.1) 13 0 (0.0) > 0.999
Mechanical ventilation, No (%) 130 24 (18.5) 13 0 (0.0) 0.126
Non-invasive, No (%) 130 22 (16.9) 13 0 (0.0) 0.219
Invasive, No (%) 130 6 (4.6) 13 0 (0.0) > 0.999
ECMO, No (%) 130 3 (2.3) 13 0 (0.0) > 0.999
Hospital length of stay, days 130 28 (21, 36) 13 21 (17, 26) > 0.999
  1. Values for categorical variables are given as count (percentage); values for continuous variables are given as median (interquartile range). Blood pressure and laboratory data were at the time of admission. SCr serum creatinine; eGFR estimated glomerular filtration rate; hs-CRP high-sensitivity c-reactive protein; ECMO extracorporeal membrane oxygenation