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Table 1 Comparisons of patient characteristics and laboratory findings according to QFT-GIT results

From: Predictors for false-negative QuantiFERON-TB Gold assay results in patients with extrapulmonary tuberculosis

 

QFT-GIT (−), n = 47, n(%)

QFT-GIT (+), n = 114, n(%)

Indeterminate, n = 2, n(%)

p value*

Age, median, years (IQR, range)

51 (34, 22–83)

55 (27.2, 18–95)

66.5

0.09

Sex, male

25 (53.2%)

60 (52.6%)

0 (0%)

0.95

BMI, median, kg/m2 (IQR, range)

22.4 (4, 16.7–26.2)

22.1 (4.4, 19.2–25.7)

21.3

0.74

Underlying disease

 Diabetes mellitus

3 (6.4%)

13 (11.4%)

1 (50.0%)

0.33

 Hypertension

13 (27.7%)

28 (25.6%)

1 (50.0%)

0.68

 Malignancy

10 (21.3%)

22 (19.3%)

1 (50.0%)

0.19

  Solid cancer

3

14

1

 

  Hematologic

7

8

0

 

malignancy

 Chronic kidney disease

5 (10.6%)

7 (6.1%)

1 (50.0%)

0.32

 Autoimmune disease

3 (6.4%)

2 (1.8%)

1 (50.0%)

0.12

 Transplant

3 (6.4%)

6 (5.3%)

0 (0%)

0.78

 HIV infection

0 (0%)

1 (0.9%)

0 (0%)

0.52

Prior tuberculosis history

2 (4.3%)

16 (14.0%)

0 (0%)

0.07

Old fibrotic scar on chest X-ray

1 (2.1%)

18 (15.8%)

0 (0%)

0.015

Disseminated disease

0 (0%)

5 (4.4%)

0 (0%)

0.33

White blood cells, ×  109/L, median (IQR, range)

66.6 (58.6,17.1–173)

58.2 (48.0–79.6,10.1–206.7)

67.5

0.39

Total lymphocyte, × 109/L, median(IQR, range)

13.8 (13.2,2.6–49.2)

13.2 (10.2, 2.3–45.8)

7.5

0.62

Hemoglobin,g/dl, median (IQR, range)

11.75 (2.13, 7.4–28.20)

12.1 (3.2, 7.2–17.10)

8.85

0.36

ESR,mm/h, median (IQR, range)

46.0 (60.5, 2–120)

44.0 (54.4,3–120)

59.5

0.19

C-reactive protein, mg/dl, median (IQR, range)

1.87 (5.43,0.04–29.50)

2.03 (7.8,0.03–30.8)

1.11

0.79

Albumin, g/dl median(IQR, range)

3.5 (1.0,2.3–4.4)

3.5 (1.2,2.0–4.8)

2.9

0.52

  1. *Intermediate value was excluded
  2. ESR Erythrocyte sedimentation rate, BMI body mass index