Table 7.

Discriminant validity of the Mongolian version of WHOQOL-BREF (n=286)

Relation with illness	Domain scores (mean ± SD)
	Physical	Psychological	Social	Environment
Healthy participants (n=165)	63.20±16.47	74.92±14.87	70.15±16.99	69.60±14.96
Ill participants (n=121)	56.08±16.26	69.93±16.53	69.21±17.77	66.27±16.47
t-value	3.632	2.671	0.452	1.243
p-value	<0.001	0.008	0.652	0.215

p-values were analyzed with Student-t test.