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Table 9 CSF ADA results for the clinical research case definition (in U/L) (n = 1490)

From: The dubious value of cerebrospinal fluid adenosine deaminase measurement for the diagnosis of tuberculous meningitis

Categories

Not tuberculous meningitis

(n = 1024)

Possible tuberculous meningitis

(n = 306)

Probable tuberculous meningitis

(n = 68)

Definite tuberculous meningitis

(n = 92)

Percentage (%)

68.7

20.5

4.6

6.2

ADA Range

0.0 – 135.7

0.0 – 91.8

0.0 – 6.5

0.0 - 108

Median ADA

0.6

0.9

0.7

5.4

Number of cases in each category ADA ≥ 2

n = 207, 20.2%

n = 97, 31.7%

n = 15, 22.1%

 

Number of cases in each category ADA ≥ 6

n = 63, 6.2%

n = 32, 10.5%

n = 4, 5.9%