| STUDY PERIOD | ||||||||
---|---|---|---|---|---|---|---|---|---|
 | Enrolment | Allocation | Post-allocation | ||||||
TIMEPOINT | -1 | Baseline (T0) | Intervention period | 6 weeks post-test (T1) | 3 months follow-up (T2) | 6 months follow-up (T3) | |||
 |  |  | Week 1 | Week 2 | Week 3 | Week 4 |  |  |  |
ENROLLMENT: | |||||||||
 Eligibility screen | X |  |  |  |  |  |  |  |  |
 Informed consent | X |  |  |  |  |  |  |  |  |
 Allocation |  | X |  |  |  |  |  |  |  |
INTERVENTIONS: | |||||||||
 Volunteering Intervention |  |  | X | X | X | X |  |  |  |
 Active Control Intervention |  |  | X | X | X | X |  |  |  |
ASSESSMENTS: | |||||||||
 Socio-demographic variables |  | X |  |  |  |  |  |  |  |
 Covariates |  | X |  |  |  |  |  |  |  |
 Primary Outcome |  | X |  |  |  |  | X | X | X |
 Secondary Outcomes (including subjective health) |  | X |  |  |  |  | X | X | X |
 Mediator variables |  | X |  |  |  |  | X | X | X |
 Moderators variables |  | X |  |  |  |  | X | X | X |