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. 2014 May 20;12:151. doi: 10.1186/1477-7819-12-151

Table 1.

The relationship between S100A4 expression and the course of pleural tuberculosis

Course
Patients number
S100A4 expression comprehensive score
P value
    - + ++ +++  
<2 weeks
11
3
5
1
2
0.09a
2-8 weeks
13
0
1
7
5
0.01b
>8 weeks 6 0 6 0 0  

a:<2 weeks vs. 2-8 weeks; b: 2-8 weeks vs. >8 weeks. Both are calculated by rank-sum test.