Study: NCT03368417

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Usual Care
Description: Participants will be advised to measure their BP at least 3 times a week and record their results on a form. The participants will be educated on how to interpret their BP according to standard self-monitoring practice guidelines.~As part of the study, participants without a HBPM will be provided with the Omron HEM 7130. Adherence to hypertensive medicines will be monitored using the medication event monitoring system eCAP™. In addition, the participants will be asked to undertake ambulatory blood pressure monitoring (using the Welch Allyn ABPM 7100 monitor) at Baseline and Month 6 for a duration of 12 hours, during their waking hours.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Wireless HBPM System
Description: BP will be monitored using the iHealth KN-550BT wireless HBPM and transmitted to the study application via the iHealth mobile application.~The Wireless HBPM System consists of:~i) Instant BP feedback: Classification of each BP reading with feedback SMS. CRC will call the patient in case of alarming BP readings.~ii) Weekly HBPM adherence feedback: Participants receive praise, encouraging, or reminder SMSes.~iii) Continuous assessment: Based on average BP over the last 4 weeks, participants will be categorized and flagged for the CRC to follow clinical protocols. Protocols include asking patients to immediately come to the clinic, checking for alarm symptoms and discussing adherence over the phone, remote titration, and cancelling 1 clinic visit in case of good BP control.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Wireless HBPM System
Description: BP will be monitored using the iHealth KN-550BT wireless HBPM and transmitted to the study application via the iHealth mobile application.~The Wireless HBPM System consists of:~i) Instant BP feedback: Classification of each BP reading with feedback SMS. CRC will call the patient in case of alarming BP readings.~ii) Weekly HBPM adherence feedback: Participants receive praise, encouraging, or reminder SMSes.~iii) Continuous assessment: Based on average BP over the last 4 weeks, participants will be categorized and flagged for the CRC to follow clinical protocols. Protocols include asking patients to immediately come to the clinic, checking for alarm symptoms and discussing adherence over the phone, remote titration, and cancelling 1 clinic visit in case of good BP control.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: BP Monitoring Incentives
Description: Participants will receive an intervention identical to those in the Wireless HBPM System, with financial incentives for BP monitoring. This arm is further randomly subdivided into the Instant Reward and Health Capital arms in a 1:1 ratio.~Instant Reward sub-arm:~* Participants receive SGD 3 for each day they measure their BP, up to three times per week.~* Participants do not receive financial incentive if they do not measure their BP.~Health Capital sub-arm:~* Participants receive an initial health capital of SGD 72~* Participants' health capital increases by SGD 6 on each week where they measure their BP on at least 3 different days and decreases weekly by 10% per missing BP reading.