Table 1.

Types of engagement strategies used across studies and their adherence rates.

Study	Program engagement	Facilitator engagement	Adherence with study protocol (%)
Chandler et al [5]	✓	✓	39
Compen et al [37]	✓	✓	79
Kladnitski et al [38]	✓	✓	66
Kubo et al [30]	✓	✓	56
Stjernsward and Hansson [27]	✓	✓	57
Thompson et al [33]	✓	✓	NRa
Gotink et al [14]	✓	N/Ab	50
Hearn and Finlay [39]	✓	N/A	72
Henriksson et al [40]	✓	N/A	58
Huberty et al [29]	✓	N/A	NR
Moberg et al [24]	✓	N/A	NR
Rosen et al [32]	✓	N/A	NR
Russell et al [3]	✓	N/A	NR
Younge et al [41]	✓	N/A	53
Bostock et al [36]	N/A	✓	27
Lindsay et al [31]	N/A	✓	NR
Tavallaei et al [43]	N/A	✓	NR
Wahbeh et al [35]	N/A	✓	NR
Wahbeh [34]	N/A	✓	NR

^aNR: not recorded.

^bN/A: not applicable.