Table 2.

Treatment effects and between- and within-group changes over 24 weeks in participants randomized to an aerobic exercise experimental group and control arm

Outcome	Unstandardized treatment effect		Change over time in control group		Change over time in aerobic intervention
	Effect	95% CI	Change	95% CI	Change	95% CI
Positive aspects of caregiving (multiple imputation)	0.34	-0.03, 0.71	0.08	−0.18, 0.31	0.42*	0.15, 0.68
Positive aspects of caregiving (casewise deletion)	0.22	−0.14, 0.59	0.07	−0.20, 0.34	0.27*	0.02, 0.56
Caregiver burden (multiple imputation)	−4.60*	−8.82, −0.38	−1.99	−4.92, 0.95	−6.59*	−9.62, −3.55
Caregiver burden (casewise deletion)	−4.69	−9.58, 0.21	−2.19	−5.52, 1.13	−6.88*	−10.48, −3.29
Depressive symptoms	−2.59*	−4.79, −0.38	−1.43	−2.96, 0.10	−4.02*	−5.60, −2.43
Loneliness	−0.43	−2.40, 1.54	−2.25*	−3.61, −0.89	−2.68*	−4.10, −1.26
Social support	0.02	−0.16, 0.19	0.13*	0.01, 0.25	0.14*	0.02, 0.27
Rumination	−0.06	−0.27, 0.15	−0.19*	−0.33, −0.04	−0.25*	−0.40, −0.10
Emotional regulation
Expressive suppression	−0.07	−0.52, 0.38	0.19	−0.13, 0.50	0.11	−0.21, 0.44
Cognitive reappraisal	0.08	−0.31, 0.47	−0.04	−0.31, 0.23	0.05	−0.23, 0.33
Mastery	1.78*	0.09, 3.46	0.48	−0.69, 1.65	2.26*	1.04, 3.48
Optimism	0.19	−0.24, 0.61	0.09	−0.20, 0.39	0.28	−0.02, 0.59
Pessimism	−0.01	−0.42, 0.41	−0.04	−0.33, 0.25	−0.05	−0.35, 0.25
Anger	−0.08	−0.20, 0.04	−0.04	−0.13, 0.04	−0.12*	−0.21, −0.03

CI confidence interval.

*p < .05.