Tuberculous pleural effusion (n=20)
Malignant pleural effusion (n=20)
Transudative pleural effusion (n=18)
χ
2
P value
Fructose
11.65
17.95
16.90
4.175
0.124
L-Serine
13.80
18.60
14.10
1.866
0.393
Tyrosine
15.10
16.90
14.50
0.403
0.818
L-Threonine
20.90‡
14.90
10.70
6.782
0.034*
Creatinine
18.20
10.00
18.30
5.855
0.054
Choline
20.80
11.40
14.30
5.979
0.050
Methionine
17.00
8.80‡
20.70
9.572
0.008**
Acetic acid
13.60
18.20†
14.70
7.760
0.021*
L-Valine
20.10
13.00
13.40
4.106
0.128
Glutamic acid
16.00
13.50
17.00
0.839
0.657
4-Aminobutyrate
20.80
11.40
14.30
2.147
0.342
L-glutamic acid
19.30
11.30
15.90
4.160
0.125
Ornthine
15.80
12.10
17.30
2.240
0.326
*P < 0.05 ** P < 0.01. Data are presented as mean rank
†p < 0.05 compared with each of the other two groups
‡ p < 0.05 compared with transudative pleural effusion
Table 5:
Statistical results of Kruskal-Wallis (K-W) test.