Table V.

Statistical results of Kruskal-Wallis test.

	Pleural effusion
Compound	Tuberculous, n=20	Malignant, n=20	Transudative, n=18	χ2	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	20.90a	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	8.80a	20.70	9.572	0.008
Acetic acid	13.60	18.20b	14.70	7.760	0.020
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

^aP<0.05 vs. transudative pleural effusion.

^bP<0.05 vs. each of the other two groups. Data are presented as the mean rank.