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Table 4 Correlations for clinical characteristics and serum protein levels of the pulmonary tuberculosis patients (N = 115)

From: Serum complement C4b, fibronectin, and prolidase are associated with the pathological changes of pulmonary tuberculosis

  

Sputum smear

NTA classification

C4b

FN

PEPD

Sputum smear

rs

1

0.19

0.11

0.22

0.10

 

P a

.

0.043*

0.244

0.028*

0.287

NTA classification

rs

 

1

0.19

−0.18

0.08

 

P a

 

.

0.045*

0.086

0.420

C4b

rs

  

1

0.10

0.29

 

P a

  

.

0.354

0.003**

FN

rs

   

1

−0.05

 

P a

   

.

0.659

PEPD

rs

    

1

 

P a

    

.

  1. The rs in [−0.3, -0.1] or [0.1, 0.3] means weak correlation, in [−0.5, -0.3] or [0.3, 0.5] means moderate correlation, and in [−0.7, -0.5] or [0.5, 0.7] means significant correlation. A P-value of less than 0.05 indicates statistical significance. N: number of subjects; a P value for Spearman Correlation. * P < 0.05; ** P < 0.01.