Can brief telephone interventions reduce caregiver burden and depression in caregivers of people with cognitive impairment? - long-term results of the German day-care study (RCT)

Table 2 Descriptive statistics for the dependent variables caregiver burden/depressiveness by group for the three measurement points (N = 304)

Variable		Descriptives			t-Test for independent samples		Effect size for mean difference
		Mean	Standard Deviation	ΔM (SD) (T2-T0)	t (df)	p-value	Cohen’s d [95%-CI]
Caregiver Burden
Intervention group (N = 173)	T0	11.71	8.00	−.20 (5.39)^a	t (302) = 1.53	.126	0.177 [−0.051; 0.406]
	T1	10.93	7.77
	T2	11.50	8.26
Control group (N = 131)	T0	12.98	7.48	.76 (5.49)^a
	T1	12.83	7.90
	T2	13.75	8.24
Depressiveness (reverse coded)
Intervention group (N = 173)	T0	11.90	6.03	−.05 (5.17)^b	t (302) = 1.49	.136	0.173 [−0.056; 0.401]
	T1	12.48	5.92
	T2	11.85	5.96
Control group (N = 131)	T0	12.07	5.61	−.98 (5.65)^b
	T1	11.69	5.66
	T2	11.09	6.04

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