Follow-up
Adequate: if the numbers and reasons for drop-outs and withdrawals
in all intervention groups were described or if it was specified
that there were no drop-outs or withdrawals.
Unclear: if the report gave the impression that there had been no
drop-outs or withdrawals, but this was not specifically stated.
Inadequate: if the number or reasons for drop-outs and withdrawals
were not described.