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. 2013 Dec 27;8(12):e83857. doi: 10.1371/journal.pone.0083857

Table 1. Clinical characteristics and biochemical characteristics of PF in study population (n=98).

Characteristics Pleural TB group (n=55) No pleural TB Group (n=43) P Value
Age, median (range), yrs 39(25-59,) 57(47-67) 0.003
Gender(female/male,) 18/37 18/25 0.200
BCG scar 5 4 1.000
Complications
Diabetes mellitus 9 7 0.991
ADA, U/L 48.15(35.63-66.43) 12.35(8.9-16.73) 0.000
Lymphocyte, /μl 2124(1285-3342) 965(615.25-2153.5) 0.018
Rivalta test * , (n) 36/9 37/5 0.305
Albumin, mg/dl 47.20(41.40-52.45) 46.10(37.43-51.93)- 0.165
LDH, IU/L 282.4(186.6-565.2) 367.10(261.38-584.25) 0.912
CRP, mg/ml 16.04(5.41-26.63) 4.79(2.24-17.40) 0.018
Cause of effusion Microbiology (n=28) Malignant PF (n=35)
Histopathology (n=27) Parapneumonia effusion (n=4)
Autoimmune disease (n=3)
pulmonary embolism(n=1)

Abbreviations: TB, tuberculosis; ADA, adenosine deaminase; LDH, lactate dehydrogenase; CRP, C reactive protein.

* Rivalta test: is used as a puncture fluid test for differentiation of exudate and transudate.