Retention and adherence
129 of 148 participants completed the second study visit (87.1%
retention; 95%CI 80.6%, 91.6%) at a mean of 10.9 ± 2.1 months
postpartum, with a mean participation time of 8.5 ± 2.0 months, which
did not differ by study arm (p=0.8). Four (3%) participants became
pregnant before study completion. Retention ranged from 76% in the
HH4NM +HBPM arm to 86% in HBPM alone arm to 100% in the control arm
and did not differ by self-reported race, type of hypertensive disorder,
pre-pregnancy BMI or study site.
No difference was seen in the mean
number of blood pressures reported per month between the HBPM arm (mean
11.2± 9.9) and the HH4NM +HBPM arm (mean 10.9± 8.6; p=0.9).
Participants in the HH4NM +HBPM
arm had a mean of 4.9 ± 3.3 phone contacts with the lifestyle coach and
45 of 51 individuals (88%) had at least one contact with the lifestyle
coach. During the study period, 44 of 51 participants (86%) accessed
the study website at least once.