Research Article

A Comprehensive Comparison of Clinical Presentation and Outcomes of Kidney Transplant Recipients with COVID-19 during Wave 1 versus Wave 2 at a Tertiary Care Center, India

Table 5

Association between mortality and demographics, laboratory investigations, CT scan, and treatment options of KTRs with COVID-19.

ParameterSurvivors (n = 113)Nonsurvivors (n = 43)Mean/median difference (95% CI)p value

Demographics and baseline characteristics
 Age (years), (Mean ± SD)47.36 ± 13.2855.02 ± 10.787.66 [3.56 to 11.76]0.001
 Height (meter) (Mean ± SD)1.67 ± 0891.66 ± 0.079−0.012 [−0.043 to 0.0181]0.428
 Weight (kg) (Mean ± SD)68.53 ± 14.5869.91 ± 16.161.38 [−3.94 to 6.69]0.610
 BMI (kg/m2) (Mean ± SD)24.45 ± 4.8625.25 ± 5.340.80 [−0.96 to 2.57]0.371
 Transplant duration (Weeks) (Median[IQR])256 [117–417]327 [207–464]71.0 [−1.86 to 146.14]0.056

Laboratory investigations (mean±SD)
 Hemoglobin (gm %) (Hb)11.86 ± 1.86 (n = 108)10.26 ± 1.81 (n = 38)−1.61 [−2.29 to −0.92]<0.001
 Total leucocyte count (cells/mm3)8142 [6385–10300] n = 10812200 [9028–16400] n = 373833 [2263–5540]<0.001
 Platelet count (×109/L)196.04 ± 65.84148.6 ± 54.9−47.45 [−69.42 to −23.49]<0.001
 Creatinine (mg/dL)1.60 ± 0.89 (n = 106)3.11 ± 1.89 [n = 38)1.51 [0.87 to 2.15]<0.001
 Blood urea (mg/dL)58.02 ± 25.0 (n = 105)120.2 ± 60.44 (n = 35)62.16 [40.9 to 83.45]<0.001
 Serum albumin (gm/dL)3.81 ± 0.44 (n = 103)3.12 ± 0.59 (n = 33)−0.69 [−0.88 to −0.50]<0.001
 Lymphocytes (%)14.79 ± 7.59 (n = 103)11.94 ± 6.25 (n = 33)−2.85 [−5.74 to 0.039]0.053
 Presentation SpO2 (%)95.47 ± 3.3687.74 ± 7.82−7.73 [−9.49 to −5.96]<0.001

Inflammatory markers, (Median [IQR])
 AST (IU/L)28 [21–41] N = 9632 [25–49] N = 345.5 [−4.74 to 11.50]0.059
 ALT (IU/L)36 [20.6–54.5] N = 9729 [19.3–49.0] N = 33−2.86 [−11.0 to 5.50]0.478
 IL6 (pg/ml)7.78 [2.70–28.15] n = 7570.37 [31.22–199.75] (n = 33)57.4 [34.3 to 103.1]<0.001
 Procalcitonin (ng/ml)0.08 [0.04–0.24] n = 740.36 [0.11–2.74] n = 320.20 [0.08 to 0.51]<0.001
 D-dimmer (ngFEU/ml)422.5 [287.9–881.3]1212 [579–3540]572.8 [285.0 to 1415.5]<0.001
 CRP (mg/L)15.802 [2.66–50.94]76.85 [34.30–126.60]40.5 [25.6 to 66.4]<0.001
 Ferritin(ng/ml)368.9 [93.4–1084.9]962 [516–1889]470.9 [147 to 794]<0.001
 LDH(IU/L)292.5 [236.5–415.0]437 [312–773.3]136 [56.0 to 232.0]<0.001

AKI, dialysis and CT score, n(%)
 AKI29 (25.7)36 (83.7)14.90 [5.98 to 37.12]<0.001
 Need of dialysis4 (3.5)21 (48.8)26.01 [8.13 to 83.24]<0.001
 CT score ≥ 15&12 (31.6)22 (75.9)6.81 [2.29 to 20.28]<0.001

Treatment/Hospital management, n(%)
 Remdesivir15 (13.3)30 (69.8)15.08 [6.46 to35.20]<0.001
 Tocilizumab7 (0.9)9 (20.9)29.65 [3.36 to242.4]<0.001
 Convalescent plasma7 (6.2)25 (58.1)0.05 [0.02 to 0.13]<0.001
 Ventilator need0 (0.0)27 (62.8)<0.001$
 ICU stay12 (10.6)37 (86.0)51.90 [18.17 to 148.3]<0.001

&The number of subjects having CT scores was 67 (38 survivors and 29 nonsurvivors). $ Odds ratio [95% confidence interval], $Fisher’s exact test. SpO2: Oxygen Saturation, Hb: hemoglobin, TLC: total leucocyte count, IL6: interleukin 6, LDH: lactate dehydrogenase, CRP: C-reactive protein.