HBPM arm intervention
Participants in this arm received resources on the HH4NM website
available to the control arm plus a blood pressure monitor (iHealth,
Wireless Blood Pressure Monitor BP5). Arm circumference was measured at
the initial study visit and individuals received an appropriately sized
cuff. Participants received instruction from study staff on home
measurement of blood pressure and were asked to measure blood pressure
daily for one week out of each month, two measures in the morning and
two measures in the evening.(20) Participants were instructed on proper
measurement technique, including measuring in the seated position after
five minutes at rest. We used automated text messaging for reminders.
Individuals received summative information through the iHealth
application, as well as monthly summaries from study staff outlining the
number of measures provided, mean blood pressure values and their
comparisons to prior months.