Table 3.

Group Comparisons for the 12-Item General Health Questionnaire (GHQ-12)

Variable	Group	Frequency	%	GHQ-12
				Mean	SD	Significance
Current income*	< 15,000	28	56.0	15.5	9.0	.030
	15,000–25,000	10	20.0	16.5	8.3
	> 25,000	12	24.0	8.7	3.1
Hair disease*	Yes	49	59.0	16.6	8.8	.030
	No	34	41.0	12.6	6.8
Nail disease**	Yes	32	37.5	16.8	9.9	.089
	No	53	62.5	13.8	6.6
Eating disturbed***	Not at all	56	66.6	13.6	8.1	.007
	Seldom	19	22.7	16.1	6.6
	Occasionally	5	5.9	17.2	6.8
	Most of the time	4	4.8	27.3	5.7
Sleeping disturbed***	Not at all	43	50.0	12.0	7.7	.002
	Seldom	19	23.6	18.1	6.3
	Occasionally	11	13.5	15.2	4.5
	Most of the time	8	9.9	21.0	10.1

^*P < .05.

^**P < .10.

^***P < .01.