Study Design
The Translating Research into Practice for Postpartum
Depression (TRIPPD) effectiveness study was conducted
in 28 family medicine research network practices22
in 21 states between March 1, 2006, and August
31, 2010. Because the intervention involved changes
in care at the practice level, randomization was done
by practice. It was further stratifi ed by residency vs
nonresidency practice, rather than at the patient level,
to prevent contamination across groups if both intervention
and usual care were attempted within the same
practice. The usual-care sites continued to provide the
same postpartum and mental health care or referral as
before study inception. After 24 months the usual-care
sites were crossed over to the intervention; outcomes
include women enrolled after the usual-care sites
crossed over. Institutional review board approvals were
obtained for each site. Eligible family medicine practices
had to have provided maternity or well-baby care
to more than 30 individuals in the previous year and to
not be routinely screening for postpartum depression.
Eligible women spoke English or Spanish, were aged
at least 18 years, were 5 to 12 weeks’ postpartum, and
were receiving continuing care at the family medicine
practice where they enrolled. Teenage mothers were
excluded because of varying state legal requirements
for age of research consent. Informed consent was
obtained from all participating mothers.
Study Design
The Translating Research into Practice for Postpartum
Depression (TRIPPD) effectiveness study was conducted
in 28 family medicine research network practices22
in 21 states between March 1, 2006, and August
31, 2010. Because the intervention involved changes
in care at the practice level, randomization was done
by practice. It was further stratifi ed by residency vs
nonresidency practice, rather than at the patient level,
to prevent contamination across groups if both intervention
and usual care were attempted within the same
practice. The usual-care sites continued to provide the
same postpartum and mental health care or referral as
before study inception. After 24 months the usual-care
sites were crossed over to the intervention; outcomes
include women enrolled after the usual-care sites
crossed over. Institutional review board approvals were
obtained for each site. Eligible family medicine practices
had to have provided maternity or well-baby care
to more than 30 individuals in the previous year and to
not be routinely screening for postpartum depression.
Eligible women spoke English or Spanish, were aged
at least 18 years, were 5 to 12 weeks’ postpartum, and
were receiving continuing care at the family medicine
practice where they enrolled. Teenage mothers were
excluded because of varying state legal requirements
for age of research consent. Informed consent was
obtained from all participating mothers.
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