Table 3.

General estimating equation (GEE) analysis of the scores on Dementia Knowledge Assessment Scale (DKAS), Approach to Dementia Questionnaire (ADQ), and Sense of Competence in Dementia Care Staff scale (SCIDS) for the intervention and control group

Variable	Dementia Knowledge Assessment Scale (DKAS)		Approach to Dementia Questionnaire (ADQ)		Sense of Competence in Dementia Care Staff scale (SCIDS)
	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p
Group (intervention)a	0.36 (−2.33–3.04)	0.796	−0.28 (−2.60–2.04)	0.813	−1.29 (−3.58–1.01)	0.272
Timeb
T1	4.89 (3.03–6.74)	< 0.001	0.91 (−0.52–2.35)	0.213	0.79 (−0.95–2.52)	0.375
T2	4.40 (2.58–6.22)	< 0.001	1.81 (0.30–3.32)	0.019	3.09 (− 0.45–2.71)	0.162
Group × timec
Intervention × T1	5.47 (2.92–8.02)	< 0.001	3.43 (1.18–5.68)	0.003	2.60 (0.08–5.12)	0.043
Intervention × T2	5.11 (2.70–7.53)	< 0.001	4.06 (1.62–6.50)	0.001	2.94 (0.47–5.42)	0.020

β parameter estimate, CI Confidence interval, T₁ end of the intervention, T₂ 12 weeks post-intervention

^aReference group = control group

^bReference group = baseline (T₀)

^cReference group = intervention × T₀

Three baseline variables, including educational levels, on-the-job educational training in previous year, and on-the-job educational training on dementia in previous year, were adjusted in the general estimating equation analysis