Table 4.

Means, standard deviations and t-test values related to total scores and symptom domain totals on SRDQ, GDS and CGDS for depressed and non-depressed groups

		Depressed		Non-depressed
Measure		Mean	SD	Mean	SD	t	P
SRDQ	Total	63.52	10.65	55.53	10.03	−3.44	0.001**
	Affective	9.90	3.51	7.93	3.36	−2.52	0.01*
	Cognitive	10.63	5.23	7.43	4.58	−2.83	0.007**
	Somatic	9.90	3.51	7.93	3.36	−2.65	0.01*
GDS	Total	18.17	7.05	13.05	5.83	−3.60	0.001**
	Affective	7.43	3.40	5.39	2.94	−2.77	0.008**
	Cognitive	6.87	3.04	4.80	3.19	−2.91	0.004**
	Somatic	3.73	1.80	3.09	1.93	−1.72	0.09
CGDS	Total	12.03	6.53	7.04	4.48	−3.93	0.001**
	Affective	3.43	2.43	1.91	1.53	−3.07	0.004**
	Cognitive	2.83	1.73	1.82	1.17	−2.81	0.007**
	Somatic	4.27	2.59	2.67	1.98	−2.82	0.007**

^*P < 0.05.

^**P < 0.01.

SRDQ, Self-Report Depression Questionnaire; GDS, Glasgow Depression Scale; CGDS, Carer Supplement of the Glasgow Depression Scale.