TABLE 2.

Serum concentrations of folate, glutathione, homocysteine, and vitamin B-12 in 2003 in rural Chinese who had received placebo or garlic, vitamin and selenium, or amoxicillin and omeprazole treatments¹

	Garlic extracts			Vitamins C and E and selenium			Amoxicillin and omeprazole
Analyte	Treatment	Placebo	P2	Treatment	Placebo	P2	Treatment	Placebo	P2
n	190	191		190	191		131	125
Folate, nmol/L	16.3	14.8	0.017	15.8	15.0	0.73	15.8	16.4	0.67
	(13.2,19.8)	(12.3,19.9)		(13.0,19.9)	(12.6,19.7)		(12.8,21.0)	(13.2,21.0)
Glutathione, μmol/L	1.96	1.91	0.89	2.09	1.80	<0.001	1.95	1.86	0.67
	(1.58,2.47)	(1.55,2.47)		(1.64,2.65)	(1.48,2.31)		(1.54,2.39)	(1.48,2.47)
Homocysteine, μmol/L	10.2	9.56	0.26	9.35	10.3	0.06	9.45	9.90	0.55
	(7.59,14.4)	(7.69,12.3)		(7.39,12.3)	(8.01,14.5)		(7.24,13.2)	(7.79,12.3)
Vitamin B-12, pmol/L	201	201	0.26	193	206	0.86	185	221	0.027
	(136,279)	(143,301)		(138,289)	(137,296)		(133,279)	(152,304)

¹Values are medians (interquartile range).

²Two-sided Wilcoxon's rank sum test P-value.