Table 5.

Meta-regressive estimates of effect modification by various study design and intervention characteristics (fine-grained model), presented as in Table 4.

Coefficient	Effect modification RR [95% CI]	p-value
Intercept	0.87 [0.51, 1.46]	0.56
Intervention used mind attribution	1.00 [0.74, 1.33]	0.97
Intervention used social norms	1.03 [0.64, 1.65]	0.88
Intervention identified victim	0.94 [0.65, 1.35]	0.68
Intervention depicted pets	1.11 [0.70, 1.78]	0.47
Intervention used implementation suggestions	1.24 [0.85, 1.80]	0.22
Intervention had visuals	1.04 [0.87, 1.25]	0.61
Intervention had graphic content	1.07 [0.88, 1.29]	0.45
Intervention’s recommendation
No recommendation	Ref.	Ref.
“Reduce consumption”	0.89 [0.68, 1.17]	0.33
“Go vegetarian”	0.91 [0.63, 1.31]	0.55
“Go vegan”	1.25 [0.78, 1.99]	0.29
Mixed recommendation	0.78 [0.54, 1.12]	0.14
Intervention duration >5 min	0.96 [0.66, 1.40]	0.81
Follow-up length at least 7 days	0.76 [0.50, 1.14]	0.15
Percentage male subjects (10-pt increase)	0.98 [0.91, 1.06]	0.57
Average subject age (5-year increase)	1.08 [1.00, 1.17]	0.06