key: cord-0905601-zqcjc7wu
authors: Berihun, Gete; Walle, Zebader; Berhanu, Leykun; Teshome, Daniel
title: Acceptance of COVID-19 Vaccine and Determinant Factors Among Patients with Chronic Disease Visiting Dessie Comprehensive Specialized Hospital, Northeastern Ethiopia
date: 2021-08-17
journal: Patient Prefer Adherence
DOI: 10.2147/ppa.s324564
sha: b4c72b80d8ff36a2fbc8408122518546b97f847a
doc_id: 905601
cord_uid: zqcjc7wu

BACKGROUND: Despite the implementation of different COVID-19 prevention measures, the incidence of the disease continues to rise. Hence, vaccines have been taken as the best option for controlling the transmission of the disease. Although the approved COVID-19 vaccines have proven to be safe and effective, multiple beliefs and misconceptions still exist influencing its acceptance. OBJECTIVE: To assess the acceptance of the COVID-19 vaccine and determinant factors among chronic patients visiting Dessie Comprehensive Specialized Hospital, Northeastern Ethiopia. METHODS: Institution-based cross-sectional study design was used among patients with chronic diseases visiting Dessie Comprehensive Specialized Hospital from May 1 to 20, 2021 using a consecutive sampling technique. Binary logistic regression analysis using crude odd ratio (COR) and adjusted odd ratio (AOR) was performed to assess the association between independent and dependent variables. Variables having p values of less than 0.05 at the 95% confidence interval (CI) were considered as factors of COVID-19 vaccine acceptance. RESULTS: A total of 416 respondents participated in the survey, with a response rate of 98.6%. About 59.4% of the respondents were willing to accept the COVID-19 vaccine. Participants who had health insurance (AOR=1.812; 95% CI: 1.703–3.059), knew anyone diagnosed with COVID-19 (AOR=2.482; 95% CI: 1.427–4.317), having good knowledge of the COVID-19 vaccine (AOR=6.890; 95% CI: 3.900–120.17), and having a positive attitude towards COVID-19 vaccine (AOR=7.725; 95% CI: 4.024–14.830) were factors affecting the acceptance of COVID-19 vaccine. CONCLUSION: The acceptance of the COVID-19 vaccine was low. Use of health insurance, knowing anyone who had been diagnosed with COVID-19, knowledge, and attitude towards the COVID-19 vaccine were factors of COVID-19 vaccine acceptance. Healthcare professionals should conduct continuous awareness creation campaigns on the importance of the COVID-19 vaccine, safety, and its efficacy. Further studies like longitudinal and qualitative studies should be conducted to identify additional barriers to vaccine acceptance particularly in high-risk groups.

Coronavirus disease (COVID-19) has caused a global health crisis since December 2019, is caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). [1] [2] [3] [4] The disease was initially reported in China and then declared as a Public Health Emergency of International Concern by the World Health Organization (WHO) on January 31, 2020, and a global pandemic on March 31, 2020. [5] [6] [7] [8] The pandemic has affected 223 countries across the globe 9 and a total of 174,539,625 confirmed cases and 3,756,185 deaths were reported as of June 9, 2021. 10 The first confirmed cases of COVID-19 in Ethiopia was reported on March 13, 2020. 11, 12 Since then, a total of 373, 398 confirmed cases of COVID-19 and 4226 deaths were reported as of June 9, 2021. 12 The COVID-19 pandemic has disrupted the world economy, the health systems, and the quality of life of survivors mainly in developing countries. 13, 14 The majority of infections with COVID-19 cause a mild form of infection. But, those elder and people with comorbidities, including cardiovascular, respiratory diseases, and diabetes are five times more likely to have an increased risk of severe illness and death. 15, 16 The impacts of COVID-19 on patients with chronic disease are not only restricted on direct effect but also in an indirect manner. Resources at all levels have been shifted away from patients with chronic diseases management and prevention to pandemic management particularly, in low and middle-income countries, including Ethiopia. 17 The world has implemented different COVID-19 prevention measures, like quarantine, restricted movement, nationwide lockdowns, 15 handwashing with water and soap, keep respiratory hygiene, and use facemask. 18,-20 Despite the implementation of these measures across the world, the burden of the pandemic is not significantly reduced. 1 The health and economic burden of the pandemic prompted the need for timely and effective vaccine development. 14 Hence, vaccination was considered as the best strategy for controlling the transmission of the disease. 1 In May 2020, the 73rd World Health Assembly issued a resolution recognizing the role of extensive immunization as a global public-health goal for preventing, containing, and stopping transmission of SARS-CoV -2. Globally, there are now more than 125 vaccine candidates, 365 vaccine trials ongoing, and 18 vaccines against COVID-19 approved by at least one country. 21 Vaccine plays a vital role in reducing the infection of COVID-19, particularly among high-risk groups such as health care workers, the elderly, and individuals with chronic diseases. 19 The vaccine has been shown to reduce infections even among individuals who are not vaccinated, through the development of herd immunity, if most of the population become vaccinated. 22 Ethiopian health authorities choose to employ the Astra Zeneca COVID-19 vaccination through the COVAX Facility and Covishield vaccines since March 7, 2021.

Hence, Ethiopia received 2.184 million doses of COVID-19 vaccination . The Ethiopian Ministry of Health officially  launched the COVID-19 vaccine at a high-level national  event held at Eka Kotebe COVID-19 Hospital, where front-line health workers were vaccinated to kick of the vaccination campaign. 23 Health care professionals (HC), elderly, patients with chronic disease above the age of 55 years old are the prioritized populations for vaccination against COVID-19. Ethiopia has planned to vaccinate only 20% of the population until the end of 2021. 14, 24, 25 There is evidence that a significant portion of the population in many countries, may not be willing to get vaccinated against COVID-19. 26 Misinformation and lack of confidence towards vaccines led to low acceptance. 25 Vaccine hesitancy and resistance are major issues around the world, causing the WHO list it among the top ten health risks for 2019. 20 37 and France (65.6%). 38 Studies have also examined factors of willingness to get vaccinated against COVID-19 were perceived risk, sex, race/ethnicity, age vaccine safety, educational level, history of influenza vaccine, professions, vaccination history, religion, visits to high-risk areas, vaccination status of family members, side effects experienced after receiving other vaccines, information-seeking behaviors, trusting healthcare workers, income, adherence to COVID-19 government guidelines, living with children, unforeseen side effects. Perceived benefits, vaccine efficacy, marital status, perceiving a high risk of infection, vaccine price in decision-making, history of COVID-19 test, a high level of worry of contracting COVID-19, and believed that COVID-19 infection can be prevented with a vaccine were factors of COVID-19 vaccine acceptance. 14, 22, 25, 27, 28, 30, 32, 33, [37] [38] [39] In order to implement the most effective vaccination strategies, the prevalence of and determinant factors of vaccine accetance are crucial for Government and policymakers to address all barriers against COVID-19 vaccine acceptance. To date, there has been no prior study on COVID-19 vaccine acceptance among patients with chronic diseases. Therefore, this study was designed to assess the acceptance of the COVID-19 vaccine and 

Institution-based cross-sectional study design was conducted among 416 patients with chronic diseases who have visited Dessie Comprehensive Specialized Hospital from May 1-20, 2021. Dessie town is located in South Wollo Zone, Amhara region, Northeastern Ethiopia. The town is located in a mountainous setting, 401 kilometers north of Addis Ababa and 480 kilometers from Bahir Dar, the capital city of the Amhara Region. According to the record of the Health Management Information System of Dessie Comrhensive Specialized Hospital, more than 25,000 patients with chronic diseases were registered and attending in the hospital.

The source population of the study was all patients with chronic diseases who had visited Dessie Comprehensive Specialized Hospital, whereas the study population was all patients with chronic diseases who had visited Dessie Comprehensive Specialized Hospital during the data collection time, between May 1 to 20, 2021.

All patients with chronic diseases who were volunteer to participate were included in the study. Patients with chronic diseases under the age of 18 and those who were unable to respond owing to a severe illness were excluded from the study.

The sample size was determined using the single population proportion formula 18

Z α/2 is the standard normal variable value at (1-α) % confidence level (α is 0.05 with 95% CI, Z α/2 = 1.96), an estimate of the proportion (p) was considered as 50%, and margin of error (d) 5%. To employ the maximum sample size, 50% of the study population was assumed to be vaccinated against COVID-19. Hence, the sample size becomes 384, and adding of a 10% non-response rate, the final sample size became 422. The study subjects were chosen using a consecutive sampling technique.

The outcome variable of the study was the acceptance of the COVID-19 vaccine (yes/no options). The dependent variables were respondents' sociodemographic data (sex, marital status, age, religion, self-rated health status, educational level, average monthly income, occupation, residence, presence of health insurance, and duration of chronic illness, know anyone infected with COVID-19), the socio-political variable of the respondents, knowledge, and attitude towards COVID-19 vaccine.

COVID-19 vaccine acceptance was measured using "Yes" and "No" questions, respondents were asked "Are you willing to be vaccinated against COVID-19?"; Seven items were used to assess respondents' knowledge about the COVID-19 vaccine. Those who correctly answered the question received one point, while incrrect resnse was given zero values. Respondents who scored 70% and above were taken as having good knowledge while those who scored less than 70% were considered as having poor knowledge towards the COVID-19 vaccine. 40 Eight items were used to assess the respondents' attitude on the COVID-19 vaccine. Those who agreed received 3 points, neutral 2 points, and disagreed got 1 point for positive questions and vice versa for negative quoted attitude questions. The respondents' attitudes ranged from 1 to 24, with a cutoff of greater than or equal to 70% (17) (18) (19) (20) (21) (22) (23) (24) were considered as a positive attitude while less than 70% (17) were taken as having a negative attitude towards the COVID-19 vaccine. 40 

The data was collected using a pre-tested structured questionnaire, which was adapted from published papers. [40] [41] [42] [43] It consists of five sections including, socio-demographic characteristics of the participants and sources of information towards COVID-19 vaccine, knowledge about COVID-19 vaccine, attitude towards COVID-19 vaccine, socio-political factors, and acceptance of COVID-19 vaccine. The questionnaire was prepared in English language and translated to the local language (Amharic) and retranslated back to the English version to ensure consistency. The pre-test was conducted among 5% of the sample size in Borumeda hospital to ensure the validation of the tool. Hence, amendment was done based on the feedback of the pre-test before the commencement of the final data collection. Training was given for the data collectors and supervisors on the aim of the study, clarity of the measuring tool, and ethical considerations. The data was collected from May 1 to 20, 2021 by three health officers and supervised by two master holders of Public Health experts. Before starting the analysis, 10% of the final sample size was used to check data entry errors.

Data were entered into Epi-Data version 4.6 and exported to the Statistical Package for Social Science (SPSS) version 25.0 software for data cleaning and analysis. Frequency and percentage were used to describe the categorical variables whereas mean with standard deviation for continuous variables. Binary logistic regression analysis using bivariable analysis and multivariable analysis was used to determine the association between the dependent and the outcome variable of the study. In the bivariable analysis using crude odds ratio (COR) variables with p values of less than 0.25 were retained for multivariable analysis. Then in multivariable analysis, p values of less than 0.05 at 95% CI were taken as factors significantly associated with the acceptance of the COVID-19 vaccine. The multicollinearity among independent variables was checked using standard error at the cutoff value of −2 to +2 and none of the deendent variables . Furthermore, model fitness was checked using the Hosmer and Lemeshow test and we found a P value of 0.865, which was fit.

The stud was conducted following Helsinki Declaration. Ethical clearance was obtained from the ethical review committee of the College of Medicine and Health Sciences, Wollo University. Permission to conduct the study was obtained from Dessie Comprehensive Specialized Hospital. Before starting the data collection, the aim of the study was explained to the respondents. Verbal informed consent was obtained from participants who could not read and write, and the verbally informed consent process was approved by the ethical review committee of Wollo University, while written informed consent was btained from participants who can read and write. The confidentiality of the study particiants were ensured by aviding an identifier like name. Partication in the stud was based on vlunteer decision. Privacy was kept by taking the data anonymously, and also the participants had the right to be excluded from the study if they did not want to participate. Particiants have also told as the have the right to withdraw from the study at any stage.The data collection was conducted by applying the WHO recommended COVID-19 prevention measures such as wearing face masks, keeping social distancing, and using alcoholbased hand sanitizer.

A total of 416 respondents participated in the study with a response rate of 98.6%. About half 231 (50.4%) of the respondents were females. The majority of the respondents were Muslims, college and above educational level, and housewives with a value of 202 (48.6%), 123 (29.6%), and 115 (27.6%), respectively. Furthermore, half 215 (51.7%) of the study participants had received necessary vaccines in their life before the occurrence of COVID-19. More than one quarter 111 (26.7%) of the respondents were attending in the hospital due to respiratory diseases. Finally, less than ten percent 28 (6.7%) of the respondents were current smokers during the data collection ( Table 1) .

The current finding revealed that the majority 358 (86.1%) of the participants used neighbors as sources of information towards the COVID-19 vaccine. Onethird 141 (33.9%) of the participants used HCPs as sources of information about the COVID-19 vaccine. A lower number of respondents 84 (20.2%) used newspapers as sources of information towards the COVID-19 vaccine. Furthermore, less than half 189 (45.4%) of them used social media as sources of information towards the COVID-19 vaccine. Less than half 192 (46.2%) of the participants used radio and television as sources of information towards the COVID-19 vaccine (Table 2) . replied that AstraZeneca and Covishield vaccines are currently administered against COVID-19 in Ethiopia. Furthermore, less than three-quarters 310 (74.5%) of the respondents knew that the COVID-19 vaccine is given freely. More than three-quarters 325 (78.1%) of the respondents knew that HCPs, patients with chrnic 

Less than two-thirds 298 (61.6%) of the respondents had a positive attitude towards the COVID-19 vaccine. Similarly, less than two-thirds 253 (60.8) of the respondents agreed that the COVID-19 vaccine is important for their life. lower number 170 (40.9%) of the respondents agreed that the COVID-19 vaccine should be given to all populations of Ethiopia within a short time. More than half of the respondents agreed that the COVID-19 vaccine is against our tradition and culture (Table 4 ).

About a quarter 97 (23.3%) of the respondents perceived that they were at high risk of contracting COVID-19 infection. Furthermore, over three-quarters, 345 (82.9%) of the respondents trust the governments of Ethiopia towards the COVID-19 vaccine. On the other hand, lower number 275 (66.1%) of the respondents trust the public health authorities towards the COVID-19 vaccine (Table 5 ).

The current finding revealed that less than two-thirds 247 (59.4%) of the respondents were willing to accept the COVID-19 vaccine while the remaining 169 (40.625%) refused to the vaccine. According to the binary logistic regression analysis, having health insurance, knowing anone diagnosed with COVID-19, knowledge, and attitude towards the COVID-19 vaccine were significantly associated with COVID-19 vaccine acceptance. Participants who had health insurance were 1.812 (95% CI; 1.703-3.059) times more likely to accept the COVID-19 vaccine than those without it. Furthermore, those who knew anone diagnosed with COVID-19 were 2.482 (95% CI; 1.427-4.317) times more likely to accept the COVID-19 vaccine than those who did not know. Respondents who had good knowledge about the COVID-19 vaccine were 6.890 (95% (Table 6 ).

Institution-based cross-sectional study design was conducted among patients with chronic disease visiting Dessie Comprehensive Specialized Hospital from May 1-20, 2021. The objective of the study was to assess the acceptance of the COVID-19 vaccine and determinant factors. COVID-19 vaccines have been launched as the perfect solution for bringing the pandemic of COVID-19 to an end in the world. Several countries across the world have approved specific vaccines for use in Ethiopia vaccination programs against the disease of COVID-19. 23 For better implementation of the program, knowledge, and attitudes towards the COVID-19 vaccine is critical to understand the epidemiological dynamics of disease control, effectiveness, compliance, and success of the vaccination program. But vaccine hesitancy is one of the most significant barriers to the successful implementation of the programs. 44 Therefore, vaccine acceptance have a decisive role in successful control of the COVID-19 pandemic. 45 Herd immunity is necessary to control the transmission of the pathogen which is dependent on the basic reproductive number for that infectious disease. The latest estimates on COVID-19 pointed out a range of 60-75% of the population should be vaccinated to halt the transmission of the disease to develop herd immunity. 46 The finding of the present study revealed that less than two-thirds (59.4%) of the respondents were willing to be vaccinated against the COVID-19 vaccine which was lower than the vaccination level required for the development of herd immunity. 46 This finding was consistent with the finding in South Africa, 47 Ethiopia (62.6%), 13 in the Arab world (62.4%). 20 The finding of the study was higher than the findings in Pakistan (37.80%), 42 Ethiopia (46.1%), 48 Ethiopia (31.4%), 49 16 countries across the continent (52.0%), 50 Nigeria (50.2%), 51 USA (36%), 52 Ethiopia (45.5%), 23 Turkey (29.2%). 53 On the contrary, it was lower than the finding in Canada (80.9%), 54 Mexico and India (80%), 50 China (91.3%), 36 Italy (67%), 55 low and middle-income countries (76.4%), 56 Colombia (77.0%), 57 India (78.6%), 28 India (79%), 44 Bangladesh (74.5%). 58 The low prevalence of vaccine acceptance may be due to the fact that the novelty COVID-19 disease. Hence, there may be mistrust and negative beliefs regarding the vaccine, lack of trust in the existing healthcare system, and information gaps mainly in LMIC countries. The acceptance of COVID-19 vaccine can be increased when a safe and effective vaccine is available freely or with a minimum cost. The low rate of vaccine acceptance in this high risk groups may have an adverse effects. 58 Hence, the provision of educational resources to equip Healthcare workers about the safety, importance of vaccination, and negative implication of refusing the vaccine should be implemented to improve the acceptance rate of the COVID-19 vaccine. 14 Reluctance to receive these vaccines may be driven by doubts about immediate and long-term safety and efficacy, lack of trust in the development process of the vaccine, as well as background historical vaccine apathy in minority populations. 14 In the current finding, the presence of health insurance, knowing anyone who has been diagnosed with COVID-19, knowledge, and attitude towards COVID-19 vaccine were factors for the acceptance of the COVID-19 vaccine among the participants. Participants who knew anyone diagnosed with COVID-19 infection were one of the factors affecting COVID-19 vaccine acceptance which was consistent with the study finding in Libya, 40 Ethiopia 23,48 and China. 59 The finding of the study suggested that as there is a perception that the infection of COVID-19 is not in a real event in the world. Furthermore, participants who had health insurance showed a significantly higher acceptance rate of COVID-19 vaccines which was in line with the findings in the 60 There was a wide range of acceptance rates among participants; those who live in High-Income countries had the highest acceptance rate (70.2%), whereas those who live in LMIC had the lowest acceptance rate (57.4%). 20 But, according to the report of the Ethiopian ministry of health, the COVID-19 vaccine is given for free for Ethiopians. Therefore, HCps should work in enhancing the awareness of the population mainly for high-risk groups such as patients with chronic disease and elderly groups as the vaccine of COVID-19 is given freely for all Ethiopians. Furthermore, participants who had good knowledge towards COVID-19 vaccine were another factor of the acceptance of the COVID-19 vaccine which was consistent with the findings in Pakistan, 42 Ethiopia, 13 and the USA. 61 Therefore, from this study we can clearly understand we are still in the backward position towards COVID-19 vaccine awareness creation since less than two-thirds of the participants had good knowledge of the vaccine. Lastly, respondents who had a positive attitude towards the COVID-19 vaccines had a significantly higher acceptance rate of the COVID-19 vaccine which was supported by the findings in South Africa, 47 Ethiopia, 48 and the USA. 60 The current finding clearly showed that continuous awareness promotion on the necessity of the COVID-19 vaccine should be undertaken utilizing various information dissemination methods.

Less than two-thirds (62.7%) of the respondents had a good knowledge towards the COVID-19 vaccination which was lower than the finding in Ethiopia (74%), 13 China (80.7%). 59 This low level of knowledge towards the vaccine may be attributed due to the change in the target population, age, educational status and background, commitment of the healthcare authorities towards the disease and its vaccines, opportunity to use different sources of information towards COVID-19 vaccines. Less than three-quarters (71.6%) of the participants had a positive attitude towards the COVID-19 vaccine which was consistent with the finding in China (70.07%). 59 The finding of the present study was higher than with the finding in Ethiopia (44%) 13 but lower than the finding in Bangladesh (78%). 9 The possible reason for this variation may be due to the change in risk perception towards COVID-19 and vulnerability to different diseases due to their poor immunity status, target populations. Furthermore, less than two-thirds of the study participants agreed that the COVID-19 vaccine is essential for controlling the transmission of the disease which was higher than the study finding in Ethiopia. 48 This variation may be explained due to the difference in the target population, health status, risk perception towards COVID-19, and immunity status of the participants. Besides, a similar number of respondents 60.8% agreed that the incidence of COVID-19 may not be reduced without improving the vaccination coverage. This finding was higher than the study in Ethiopia (17.1%). 49 The possible reason for this variation may be due to the change in study period, variation in the target population.

The current study has certain limitations. The use of crosssectional study design which is the snapshot that is based on the principles of single-time visit and response. Furthermore, the use non probability sampling technique may be taken as another limitation of the study; hence generalization is difficult. Finally, the use of self-reported responses may lead to the development of social desirability bias.

The rapid development of the COVID-19 vaccine might have a great contribution to the emergence of concerns particularly for high-risk groups such as individuals with chronic diseases. Generally, the acceptance of the COVID-19 vaccine among the participants was low. The use of health insurance, knowing anyone diagnosed with COVID-19 infection, knowledge, and attitude towards the COVID-19 vaccine were factors of the acceptance of the COVID-19 vaccine. Hence, promotion of COVID-19 Vaccine should be done preferably by a trusted, centralized source of information like religious and political leaders. Healthcare professionals should conduct continuous awareness creation campaigns especially targeting the populations at a higher risk of the disease about the importance of the COVID-19 vaccine, safety, and its efficacy. Further studies like longitudinal and qualitative studies should be conducted to identify additional barriers to vaccine acceptance particularly in high-risk groups.

AOR, adjusted odd ratio; COR, crude odd ratio; CI, confidence interval; COVID-19, Coronavirus disease 2019; LMIC, Low and Middle Income; SARS COV-2, Severe Acute Respiratory Syndrome COV 2; USA, United State of America; WHO, World Health Organization.

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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The authors would like to express their deep gratitude to Wollo University, College of Medicine and Health Sciences for providing the necessary material to conduct the study. The authors also want to extend their pleasure to Dessie Comprehensive Specialized Hospital officials for their permission to conduct this study. Study subjects were also acknowledged for their willingness to participate in the study. Finally, the data collectors and supervisors were also appreciated for their commitment.

The authors declare that they have no conflicts of interest in this work.

Patient Preference and Adherence is an international, peer-reviewed, open access journal that focusing on the growing importance of patient preference and adherence throughout the therapeutic continuum. Patient satisfaction, acceptability, quality of life, compliance, persistence and their role in developing new therapeutic modalities and compounds to optimize clinical outcomes for existing disease states are major areas of interest for the journal. This journal has been accepted for indexing on PubMed Central. The manuscript management system is completely online and includes a very quick and fair peer-review system, which is all easy to use. Visit http:// www.dovepress.com/testimonials.php to read real quotes from published authors.