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Table 2 ADA analysis and correlation with study variables for different subgroups

From: Factors affecting pleural fluid adenosine deaminase level and the implication on the diagnosis of tuberculous pleural effusion: a retrospective cohort study

  All patients (n = 160)   TPE (n = 80)   Non TPE (n = 80)  
Gender       
Mean ADA       
(IU/L)       
Male 66 ± 50 p = 0.712 98 ± 37 p = 0.364 35 ± 42 P = 0.067
Female 63 ± 52   106 ± 32   17 ± 16
Race       
Mean ADA       
(IU/L)       
  Chinese 52 ± 48 p < 0.001 95 ± 37 p = 0.306 27 ± 33 P = 0.121
  Malay 73 ± 43   95 ± 36   38 ± 27  
  Indian 94 ± 47 113 ± 28 19 ± 18
  Others 110 ± 48 110 ± 36 115 ± 95
ADA level       
According to age       
(IU/L)       
  Age ≤ 55 years 92 ± 47 P < 0.001 107 ± 33 P = 0.002 56 ± 57 P = 0.000
  Age > 55 years 34 ± 34 79 ± 34 19 ± 15
Age corr coeff (r) r = −0.621 p < 0.001 r = −0.281 p = 0.011 r = −0.556 P = 0.000
Fluid       
Corr coeff (r)       
  Protein r = 0.556 p < 0.001 r = 0.442 p < 0.001 r = 0.343 P = 0.02
  LDH r = 0.427 p < 0.001 r = 0.473 p < 0.001 r = 0.836 P = 0.000
  Cell count r = 0.237 p = 0.003 r = 0.160 p = 0.162 r = 0.573 P = 0.000
  Lymphocytes r = 0.314 p < 0.001 r = 0.116 p = 0.305 r = 0.534 P = 0.000