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Table 2 Univariate analysis of SFCs to ESAT-6 or CFP-10 (numeric variables)

From: Quantitative investigation of factors relevant to the T cell spot test for tuberculosis infection in active tuberculosis

Variable

Missing data

Median (interquartile range)a

SFCs to ESAT-6

SFCs to CFP-10

N

(%)

SRCC

P value

SRCC

P value

Age, years

0

(00.0)

53.0 (36.0–66.0)

− 0.102

0.054

− 0.107b

0.042

Body mass index, kg/m2

6

(1.7)

19.1 (17.6–21.2)

0.030

0.565

0.013

0.801

Duration of symptoms, days

0

(00.0)

90.0 (30.0–496.3)

− 0.073

0.165

0.025

0.630

Hemoglobin, g/L

0

(00.0)

118.0 (105.0–134.8)

0.034

0.518

0.016

0.765

Platelet, ×109/L,

0

(00.0)

258.0 (191.0–320.8)

0.173c

0.001

0.186c

<0.001

Platelet distribution width, fL

0

(00.0)

14.0 (11.7–16.2)

−0.090

0.089

−0.116b

0.027

Erythrocyte sedimentation rate, mm/H

32

(8.9)

49.9 (28.3–69.0)

−0.070

0.184

−0.028

0.594

Prealbumin, mg/L

39

(10.8)

143.6 (84.3–184.8)

0.187c

<0.001

0.104b

0.050

Albumin, g/L

1

(0.3)

31.9 (27.6–36.5)

0.159c

0.002

0.108b

0.040

Globulin, g/L

5

(1.4)

32.6 (28.9–36.1)

0.014

0.795

0.049

0.356

Albumin-globulin ratio

5

(1.4)

1.0 (0.8–1.2)

0.105b

0.047

0.054

0.303

Alpha-1 globulin, g/L

40

(11.1)

4.9 (3.7–5.6)

−0.122b

0.020

−0.077

0.146

Alpha-2 globulin, g/L

40

(11.1)

7.6 (6.5–8.6)

0.091

0.085

0.141c

0.007

Beta-1 globulin, g/L

40

(11.1)

3.7 (3.3–4.1)

0.111b

0.036

0.058

0.270

Beta-2 globulin, g/L

40

(11.1)

3.7 (3.2–4.1)

0.034

0.514

0.063

0.233

Gamma globulin, g/L

40

(11.1)

13.0 (10.4–14.7)

0.012

0.823

0.014

0.797

CD4+ T lymphocytes, cells/μL

89

(24.7)

302.0 (203.0–445.0)

0.391c

<0.001

0.230c

<0.001

CD8+ T lymphocytes, cells/μL

89

(24.7)

253.0 (164.0–379.0)

0.291c

<0.001

0.190c

<0.001

CD4+ to CD8+ ratio

89

(24.7)

1.2 (0.9–1.7)

0.049

0.354

−0.042

0.425

  1. a: Data are presented as the value of variable
  2. b: Correlation is significant at the 0.05 level (2-tailed)
  3. c: Correlation is significant at the 0.01 level (2-tailed)
  4. CFP-10 Culture filtrate protein 10 kDa, ESAT-6 Early secreted antigenic target 6 kDa, SFCs Spot-forming cells, SRCC Spearman’s rho correlation coefficient