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Table 7 Comparison of lymphocyte subsets and cytokines between severe and critical groups on ICU admission

From: Characteristics of lymphocyte subsets and cytokine profiles of patients with COVID-19

Characteristic

Total (n = 53)

Severe group (n = 37)

Critical group (n = 16)

Z value

P value

Lymphocyte classification

     

Lymphocyte, median (IQR), × 106/L

597.00 (420.50–870.00)

695.00 (423.00–902.00)

535.00 (367.50–704.75)

− 1.395

0.163

CD3+, median (IQR), × 106/L

399.00 (196.50–547.50)

430.00 (211.00–590.00)

327.00 (175.25–476.75)

− 1.085

0.278

CD4+, median (IQR), × 106/L

243.00 (118.00–341.00)

261.00 (131.50–377.00)

211.00 (86.50–294.75)

− 1.279

0.201

CD8+, median (IQR), × 106/L

140.00 (87.50–209.00)

157.00 (89.00–227.50)

117.50 (84.75–160.25)

− 1.143

0.253

CD19+, median (IQR), × 106/L

103.00 (73.50–144.50)

103.00 (80.00–146.00)

99.00 (46.00–131.00)

− 1.163

0.245

NK, median (IQR), × 106/L

103.00 (60.50–166.00)

109.00 (67.50–168.50)

87.00 (49.50–130.00)

− 1.424

0.154

CD3+, median (IQR),%

61.33 (50.67–68.25)

61.33 (50.96–67.90)

61.37 (49.94–70.59)

0.446

0.656

CD4+, median (IQR),%

35.84 (28.26–42.69)

36.04 (29.87–42.89)

30.14 (26.93–40.06)

− 0.911

0.363

CD8+, median (IQR),%

21.98 (16.61–28.62)

21.10 (16.61–27.49)

22.77 (16.09–36.27)

0.581

0.561

CD19+, median (IQR),%

17.92 (13.04–22.91)

17.73 (14.38–22.93)

18.87 (11.86–22.82)

− 0.271

0.786

NK, median (IQR),%

19.28 (10.66–26.77)

19.18 (13.41–27.32)

19.39 (9.23–26.18)

− 0.542

0.587

CD4+/CD8+, median (IQR)

1.53 (1.09–2.33)

1.71 (1.12–2.08)

1.23 (0.83–2.55)

0.794

0.416

Cytokine profiles

     

IL-4, median (IQR), pg/mL

1.73 (1.33–2.45)

1.68 (1.32–2.45)

1.98 (1.32–2.50)

0.523

0.607

IL-6, median (IQR), pg/mL

16.39 (4.53–49.63)

11.61 (2.48–46.45)

21.89 (7.20–85.51)

1.437

0.151

IL-10, median (IQR), pg/mL

3.76 (2.85–5.17)

3.44 (2.70–5.17)

4.79 (3.23–6.25)

1.744

0.081

IL-17, median (IQR), pg/mL

1.19 (1.04–1.40)

1.18 (1.04–1.36)

1.20 (1.04–1.47)

− 0.058

0.954

TNF-α, median (IQR), pg/mL

3.52 (2.14–5.42)

3.54 (1.92–5.59)

2.93 (2.19–5.25)

− 0.203

0.839

IFN-γ, median (IQR), pg/mL

5.18 (2.27–8.72)

5.42 (1.95–9.81)

4.08 (2.35–7.44)

− 0.668

0.504

  1. ICU intensive care unit, NK natural killer, IL interleukin, TNF tumor necrosis factor, IFN interferon