The Effectiveness of "MaRiTensi" in Increasing Self-Care and Blood Pressure Control: Randomized Controlled Trial

Participants will be separated into two groups.

• Respondents who have given consent will be given two questionnaires
• Intervention group respondents will be given intervention for 12 weeks
• Control group respondents will receive services according to the hospital or health center standards. Respondents will be asked to complete a questionnaire for the first evaluation during the first week of week six and to fill out a questionnaire for the final assessment in week 12.

Interventions in the form of utilizing "MaRiTensi" by the intervention group are given with the following conditions:

• Intervention group and control group respondents filled out the Indonesian Version of the hypertension knowledge-level scale (HK-LS) questionnaire and the Indonesian Version of the Hypertension Self-care Profile (HBP-SCP)
• Respondents were given a password to enter their data and log in to the "MaRiTensi" application.
• Respondents will be given a simple and easy-to-understand tutorial on how to use "MaRiTensi."
• Respondents measure blood pressure at least twice a week according to standards and record the results in the application
• Respondents utilized every feature in MaRiTensi according to the needs of each respondent, including the question-and-answer feature
• Respondents will be evaluated by telephone every two weeks by a research assistant to determine whether the respondent is following the intervention according to the procedure. Respondents who did not comply with the system were classified as lost follow-up
• After using the "MaRiTensi" application, a post-test will be carried out at week six and week 12 using the Indonesian Version of the hypertension knowledge-level scale (HK-LS) and the Indonesian Version of the Hypertension Self-care Profile (HBP-SCP) questionnaire.

Data analysis in the third phase of the research was carried out by:

• Editing Data originating from filling out the Indonesian Version of the hypertension knowledge scale (HK-LS) questionnaire and the Indonesian Version of the Hypertension Self-care Profile (HBP-SCP), as well as recording blood pressure in the application, will be examined for completeness, if there is incomplete data then will be asked back to the respondent to complete it.
• Coding Coding will be provided for each questionnaire filled by respondents, especially for quantitative data according to the data scale. Coding is given according to the provisions in filling out the questionnaire (attached)
• Tabulating Tabulating is done to convey respondents' demographic data in the third research and data on blood pressure, knowledge, motivation, self-efficacy, and self-care of hypertensive patients, as well as the results of the effectiveness analysis of "MaRiTensi" on these variables.

The data will be analyzed statistically using the paired t-test to analyze the first and second pre-test and post-test results. Comparison between the intervention and control groups will be analyzed by independent t-test. The first and second post-test outcome data will be subjected to an ANOVA test. All databases will be stored by researchers and validated by assessors, managed in a folder with a password so that not all teams can open it. Data analysis was carried out by the analyst, who performed it in a hidden manner, and the researcher will accept the data processing results for analysis to continue.

Inclusion criteria

A patient registered in the medical record of RSPR, the doctor diagnosed with hypertension based on ICD 10: I10; Age 18 to <60 years; owning and being able to use a smartphone; living in Yogyakarta during the study period; blood pressure ≥ 140/90 mmHg measured at the time of visit.

Exclusion criteria

According to the doctor's diagnosis based on ICD 10:

• Renal failure (ICD: N17-N19)
• Diabetes Mellitus (ICD: E10-E14.9)
• Stroke (ICD: I60-I69.8)
• Acute Miocard Infarction (AMI) (ICD: I21-I21.9)
• Heart Failure (ICD: I50-I50.9)
• Cancer (ICD: C00-C97)
• Dementia (ICD: F00-F04)
• Mental disorders (ICD: F05-F99.9)
• Thyroid Disease (ICD: E00-E07.9)
• Human Immunodeficiency Virus (HIV) or Acquired Immunodeficiency Syndrome (AIDS) (ICD: B20)
• Movement limitations: Hernia Nucleus Pulposus (HNP) (ICD: M50-M51.9); Piriformis Syndrome (ICD: G57-G57.9); Low Back Pain (LBP) (ICD: M54-M54.9); Frozen Shoulder (ICD: M75-75.9)