Efficacy of care manager-led support for family caregivers of people with dementia during the COVID-19 pandemic: a randomized controlled study

Table 2 Changes in outcome measures one month after the intervention

Intervention group (n = 26), CG: control group (n = 25), mean (SD)
		Baseline		Post one month		P-Value
		Baseline		Post one month		Inter-group baseline comparison^a	Within group pre- and post-comparison^b
ZBI	IG	31.0	(14.7)	32.0	(13.4)	0.383	0.683
ZBI	CG	35.1	(18.6)	36.4	(19.2)	0.383	0.519
PHQ-9	IG	5.4	(5.0)	4.0	(3.3)	0.446	0.184
PHQ-9	CG	6.5	(5.8)	6.8	(7.3)	0.446	0.815
The Fear of COVID-19 Scale	IG	19.5	(5.1)	20.5	(4.7)	0.398	0.112
The Fear of COVID-19 Scale	CG	18.1	(6.1)	16.8	(5.5)	0.398	0.081
α-amylase activity in saliva^c	IG	2.4	(1.1)	2.3	(1.3)	0.581	0.691
α-amylase activity in saliva^c	CG	2.6	(1.3)	3.1	(1.3)	0.581	0.092

SD standard deviation, IG the intervention group, CG the control group, ZBI Zarit Caregiver Burden Interview, PHQ-9 the Patient Health Questionnaire-9
^aStudent t-test
^bpaired t-test
^cThe raw values (KU/L) were converted to natural logarithms

ISSN: 1471-2318