A randomized controlled trial into the cognitive effects of a computer-tailored physical activity intervention in older adults with chronic disease(s)

Table 4 Moderation of intervention effects (Group × Time interaction) on CF outcomes for 6 and 12 months follow-up in subgroups*

	Subgroup	Effect After 6 Months				Effect After 12 Months
	Subgroup	N	Coeff.	95% CI	p	Coeff.	95% CI	p
VLT – learning curve ratio	< 80 years	412	0.03	−0.05;0.10	0.51	0.06	−0.02;0.14	0.14
VLT – learning curve ratio	≥80 years	110	0.10	−0.10;0.29	0.33	0.09	−0.11;0.30	0.38
VLT – mean no. words recalled trial 1–5	Meeting MVPA guidelines¹	258	−0.04	−0.40;0.32	0.84	−0.13	− 0.49;0.23	0.49
VLT – mean no. words recalled trial 1–5	Not meeting MVPA guidelines¹	264	0.19	−0.17;0.55	0.31	0.24	−0.13;0.62	0.21
LDST – no. correct subs	Low education	269	0.31	−0.52;1.13	0.47	0.48	−0.39;1.35	0.28
	Moderate education	107	−0.36	−1.79;1.07	0.62	−1.37	−2.86;0.13	0.07
	High education	144	0.71	−0.48;1.90	0.24	1.15	−0.04;2.35	0.06

Abbreviations: CI confidence interval, CF cognitive functioning, VLT verbal learning test, SST stop-signal task, SSRT stop-signal reaction time, LDST letter digit substitution test, MVPA moderate-to-vigorous physical activity per week.* Effects are reported as intervention group vs control group as the control group served as a reference group in the different subgroups. Subgroups were predetermined based on paper on effects on PA. ¹ Assessed at baseline; Guidelines prescribe 150 min of MVPA per week

ISSN: 1861-6909