Unit of analysis issuesWe anticipat

Unit of analysis issues
We anticipate two possible unit of analysis issues that
may arise; repeated observations of the same outcome
and studies including multiple intervention arms.
We anticipate that primarily continuous data will be reported
for physical activity outcomes. If studies report multiple
observations of the same outcome, we will extract data
at the following time points: baseline, short-term (not longer
than 12 weeks post-randomisation), medium-term (not
longer than 6 months post-randomisation), and long-term
(greater than 6 months post-randomisation) follow-up.