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Level of self-care practices and associated factors among hypertensive patients in Addis Ababa, Ethiopia
BMC Cardiovascular Disorders volume 23, Article number: 48 (2023)
The study assessed the level of self-care practice and its predictors among hypertensive patients in the health centers of Bole Sub-city, Addis Ababa, Ethiopia.
A multi-Center-based cross-sectional study that employed 370 hypertensive participants at the conveniently selected Health Centers in Bole Sub-City; from August 01–30, 2020. The researchers selected the participants based on a simple random sampling method after applying for a pre-tested interviewer-administered questionnaire and secured for informed consent. All the statistical analyses were SPSS 22.0 software based. The authors used binary logistics regression to identify the presence and strength of association; with its respective 95%CI and p-value less than five percent as a significant level.
The overall level of good self-care practice among hypertensive patients was 53.0% (95% CI: 47.2–58.8%) whereas 61.4%, 63.8%, 92.7%, 82.7%, and 18% of the study participants were adherent to medication, good weight management, non-smokers, alcohol abstainers and physical activity consecutively. Being illiterate had 2.347 and 2.084 times higher odds of having had good self-care practice compared to secondary school and a diploma or above consecutively. Being a merchant, civil, and retired were associated with good self-care practice than being unemployed.
Conclusion and recommendation
The study reported a lower level of self-care practice in the study settings. Educational level and occupation were factors identified for self-care practice. The authors recommended policymakers, healthcare workers, and researchers work on the identified factors of self-care practice of hypertensive participants in the study settings.
Hypertension; “the silent killer” is the top public health problem of both developed and the undeveloped world [1,2,3,4,5,6] affecting 1.13 billion adults globally ; and was expected to rise up to 1.56 billion people by the year 2025 . It has an annual mortality rate of 9.4million deaths per year  incurring 10% of the global health expenditure .
Based on the recommendation by the World Health Organization (WHO), hypertensive patients should monitor their blood pressure (BP) after trained about the measurement procedure . Self-care practice has a pivotal role in the prevention and control of raised blood pressure [12, 13]. Commonly; the self-care practice includes maintenance of healthy body weight (Body Mass Index; BMI) 18.5 to 24.9, medication adherence and waist circumference, moderate-intensity physical exercise; 30–60 min for 4–7 days a week, dietary approach(low salt diet; moderate alcohol consumption; and cessation of smoking) and stress management [14, 15].
With the premise that the self-care practice by the hypertensive patient should encompasses maintenance of body weight, adherence to medication, waist circumference, physical exercise, dietary management and stress management, there was a global effort to reach at by the year 2025. These included reduction of the raised blood pressure by 25%, alcohol use and insufficient physical exercise by 10%, non-communicable disease by 25%, and population salt-intake and tobacco use by 30%. With all this efforts, different studies reported a lower level of self-care practice [16,17,18].
An optimal self-care practice controls BP, and other cardiovascular disease related morbidities and mortalities . Though there were efforts to combat non-communicable diseases, the level of self-care practice among hypertensive patients was not a well-investigated area. Hence, this study assessed the level of self-care practice and its associated factors among hypertensive patients in selected health centers in Addis Ababa, Ethiopia, and would fill the existing gap.
Participants and study design
A multi-center-based cross-sectional study that received ethical approval from Santé Medical College, research review and ethics committee and Addis Ababa Regional research Review Committee and was conducted at the selected health centers in Addis Ababa, the capital of Ethiopia that has 10 sub-cities with 96 health centers. The researcher selected Bole sub-city, within Addis Ababa city, with a total of10 health centers providing healthcare service to about 415,572 population based on the report from the sub city. Proportionally, the sub city has 52% of female population. The researchers selected Bole sub-city conveniently, with the premise that healthcare service delivery system and procedure was similar across all the sub-cities within Addis Ababa. In Bole sub-city, there are ten health centers, five of which were included in the study based on simple random sampling method. The selected health centers were Bole Bulbula health center, Delfire health center and Amoraw Health Center (Fig. 1).
The researchers carried out the study from August 01 to 30, 2022; ones secured a written informed consent from all the study participants following the approval from institutional review board (IRB) of Santé Medical College and research center of Addis Ababa city health bureau. The source population were all Hypertensive patients in Bole Sub-city, whereas the study population included 370 hypertensive patients, on follow-up and available during the data collection period at the selected Health centers fulfilling the inclusion criteria. Hypertensive patients should be on follow-up at least for six months in the selected health center, not critically by the time of data collection to respond to the questionnaire, and have no mental illness diagnosed clinically to be included in the study. Patient selection followed the principles of simple random sampling technique, ones obtained for their list from the respective health centers medical record. The sample size was determined based on population proportion estimation formula, n = z2p (1 − p)/d2, with the assumptions of, 95% confidence interval (CI), 5% margin of error, and a self-care practice by hypertensive patient of 59.4% . Where p-proportion of self-care practice, n-sample size and d-margin of error. The final sample size was 409, including the 10% non-response rate. Data collected with a pre-tested interviewer-administered questionnaire where a pre-test conducted on 5% of cases at Bole 17 Health Center two weeks before actual the data collection period. The questionnaire was first developed by the researchers after a rigorous review of literature [21,22,23,24,25] then given to senior researchers, their inputs incorporated finally.
Outcome variable measurement: Self-care practice; the participants were regarded as having had good self-care practice if they scored above the median and poor if less than the median score of the constructs making up the self-care .
In this particular study, self-care practice was measured by Hypertension self-care Activity level Scale effects (H-SCALE) that have six main domains; namely: medication adherence (3 items): Low-salt diet (12 items): scores of 6 out of 7 days-adherents. Physical activity (2 items): responses range from 0 to 14. Participants who scored 8 or better were considered adherent. Smoking (2 items): responses range from 0 to 14, and respondents who reported 0 days were considered a non-smoker, and all others were smokers. Weight management (10 items): responses range from 10 to 50. Participants who agreed or strongly agreed with all 10 items (score ≥ 40) were considered to have a good weight management practices. Alcohol (3 items): responses range from 0 to 21. Participants who did not take any alcohol in the last 7 days or who did not drink at all were abstainers.
Data entry and cleaning were through Epi-Info version7, and then analyzed by statistical package for social sciences (SPSS) version 22.0 software after exported. Descriptive Statistics summarized the finding. Once the outcome variable dichotomized as poor and good self-care practice, factor identification was through binary logistics regression. After checked for model fitness, through testing for Omnibus test with a p-value of 0.136, R2 of 0.106, and Hosmer Lemeshow goodness of fit test- with a p-value of 0.775. Additionally, tested for multi collinearity tested with a Variance inflation factor for all the variables all showing a lower value than 0.05. Then after, selection of candidate variables done through bivariate logistics regression at a p-value of 0.20 in line with its respective 95% confidence interval and p-values. To control the effect of the confounding variable, a multivariable logistics regression was done, with its respective 95%CI and p-value less than 5% used as a level of significance.
Totally 370 hypertensive patients approached from the Bole sub-city, and gave a response rate of 90%. The authors excluded all missed and incomplete data (Fig. 2). The mean age of the study participants was 63.39 years with a standard deviation of ± 13.569 years. More than half (55.7%) and 57% of the study participants were females and married consecutively. Most (63.8%) of the study participants had a monthly income of higher than 1000 birr (Table 1).
Health care related profile of hypertensive patients
Most (60%) of the study participants had no family history of hypertension. More than one-third (36.5%) of the study participants had the hypertension with a duration of less than two years. In most (64.1%) of the study participants, type of hypertension was primary with the majority (84%) of the participants did not have a Sphygmomanometer at home (Table 2).
Self-care practice of hypertensive patients
Almost all (96.2%) of the study participants took blood pressure pills, and 237 (64.1%) of the participants took their medication at a constant time every day. Most (70%) of the study participants did not engage in a specific physical exercise (Additional file 1: SI). However, most (61.4%), and 63.8% of the study participants adhered to medication and good weight management practices consecutively. The majority (92.7%) and 82.7% of the study participants were non-smokers and alcohol abstainers consecutively (Table 3).
Self-care practice and its associated factors among hypertensive patients
Overall, the level of self-care practice among hypertensive patients was 53.0% (95% CI: 47.2–58.8%). Educational status, age, gender, marital status, monthly income, duration since diagnosis and occupation of the study participants were candidate variables identified in the bivariate logistics regression analysis. In the multivariable logistics regression analysis, only educational status and occupation of the study participants were statistically associated with self-care practice.
The odds of having had a good self-care practice was 2.347 and 2.084 times higher among illiterate participants compared to participants with secondary schooling (AOR: 2.347, 95% CI: 1.223–4.614, p < 0.05), and participants with a diploma and above (AOR: 2.084, 95% CI:1.073–4.047, p < 0.05) respectively.
The odds of having had a good self-care practice was higher by 56% among Merchants (AOR: 0.44, 95% CI: 0.005–0.350, P < 0.05), higher by 20% among Civil servants (AOR: 0.80, 95% CI: 0.10–0.627, P < 0.05) and higher by 5% among retired (AOR: 0.95, 95% CI: 0.12–0.751, P < 0.05) compared against unemployed participants (Table 4).
In this study, the overall level of good self-care practice by hypertensive participants was 53.0%. Thus this was consistent with the findings of 51.5% in Addis Ababa, Central Ethiopia , 49% in Dessie town, North Central Ethiopia .
However, the findings from the current study reported a higher level of self-care practice than the findings of 27.3% in southern Ethiopia , 37.1% in central India , 20.3% in Tigray Region, Northern Ethiopia . This variation might be due to differences in sample size, time of investigation and characteristics across the studies.
The level of self-care practice by hypertensive participants in this study was much higher than the findings from south India that reported a self-care practice of 14% . The variation might be due to the differences in sample and time of the investigation between the studies.
A study from southwest of Ethiopia reported a level of self-care practice by hypertensive patient of 46.9%. Thus, which is consistent with the current finding . Moreover, a study from Nepal reported a comparable proportion (52.2%) of hypertensive patients having a consistent level of self-care practice .
In the contrary, a hospital based-study from Addis Ababa reported a lower level of self-care practice by hypertensive patients . This variation might be due to variations in sample size across the studies.
A study from Gondar, Northwestern Ethiopia, reported that about sixty percent of hypertensive participants had good self-care practice; which was higher than the findings of the current study . This variation might be associated with differences in samples between the studies.
In this study medication adherence was reported among 61.4% of the study participants, thus which was lower than the other findings 83.7% in Saudi Arabia  and 85% in Western Nepal .The exhibited variation might be due to differences in time of the investigation and difference in type and level of service.
In this study low salt adherence was observed among 14.9% of the study participants, which was consistent with the finding from 18.5% in Nigeria whereas much lower than the reports of 79.3% from Saudi Arabia  and 94.6% in Ethiopia . This difference might be due to differences in the level of awareness among the population.
This study reported less than one fifth (18%) of the study participants had adhered to physical activity, which was lower than the finding of 57.3% in Saudi Arabia , and higher than the study in Nigeria where the level of adherence was 9.3% . The study from Saudi Arabia revealed that good weight management practice was observed among 59.9%  which was higher than the current study.
In this study, participants with a lower/no-educational level had good self-care practice. This was in line with the other different studies [22, 28]. This study also reported that occupation to be statistically associated with self-care practice, and other study also reported the same .
Limitation of the study: This was a cross sectional study, establishing the temporal association was difficult on cause-effect relationship. The authors suggested a cohort study to identify factors having a direct risk on the self-care practice of hypertensive patients.
This study reported a lower level of self-care practice by hypertensive patients. The educational level and occupation were factors identified having had statistically significant association with the self-care practice. Having a lower level of education, being a merchant or retired or civil servant was statistically associated with having had of lower self-care practice. The authors suggested policymakers, researchers, healthcare professionals to work on the identified problems in aggregation with every effort to prevent hypertension-related complications or promote the health of people with chronic medical conditions.
Availability of data and materials
The generated finding of this study was from data collected and analyzed based on the stated methods and materials hence all data were already available in the manuscript.
Adjusted odds ratio
Diastolic blood pressure
World Health Organization
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The authors of this paper acknowledge the data collectors and study participants for every cooperation and dedication made during the fieldwork.
The authors received no specific funding for this work.
Ethics approval and consent to participate
The study protocol was in accordance with the ethical principle. Ethical approval obtained from ethics review board of the Santé Medical College. The ethics approval was in accordance with the Declaration of Helsinki. The data collectors obtained written informed consent from all participants and from legal guardians of illiterates.
Consent for publication
Consent for publication of the manuscript was not applicable as there were no participant’s individual data videos or images.
The authors declare that there is no competing interest.
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Additional file 1
. SI Hypertensive Patients Self-care activities in Health Centers of Addis Ababa, Ethiopia, November 2020 (n = 370).
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Sahile, A.T., Nurhussien, H.A. Level of self-care practices and associated factors among hypertensive patients in Addis Ababa, Ethiopia. BMC Cardiovasc Disord 23, 48 (2023). https://doi.org/10.1186/s12872-023-03062-9
- Self-care practice
- Addis Ababa