All participants received comprehensive, in-person
group behavioral treatment (13, 14) weekly for 20 weeks,
every other week for 20 weeks, and then every other month
for the remainder of the 2-year study period. Each treatment
session lasted 75 to 90 minutes. The Appendix
(available at www.annals.org) provides details of the treatment.
Topics included self-monitoring, stimulus control,
and relapse management. All participants were prescribed
the same level of physical activity (principally walking),
beginning at week 4, with 4 sessions of 20 minutes each
and progressing by week 19 to 4 sessions of 50 minutes
each. Group sessions reviewed participants’ completion of
their eating and activity records, as well as other skill builders.
Participants in both groups were instructed to take a
daily multivitamin supplement (provided by the study).
The lifestyle intervention is described in greater detail in
the Appendix.
All participants received comprehensive, in-person
group behavioral treatment (13, 14) weekly for 20 weeks,
every other week for 20 weeks, and then every other month
for the remainder of the 2-year study period. Each treatment
session lasted 75 to 90 minutes. The Appendix
(available at www.annals.org) provides details of the treatment.
Topics included self-monitoring, stimulus control,
and relapse management. All participants were prescribed
the same level of physical activity (principally walking),
beginning at week 4, with 4 sessions of 20 minutes each
and progressing by week 19 to 4 sessions of 50 minutes
each. Group sessions reviewed participants’ completion of
their eating and activity records, as well as other skill builders.
Participants in both groups were instructed to take a
daily multivitamin supplement (provided by the study).
The lifestyle intervention is described in greater detail in
the Appendix.
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