|Year : 2017 | Volume
| Issue : 4 | Page : 415-420
Knowledge of hepatitis B virus infection among traders
UC Okonkwo1, OE Ngim2, H Osim1, MA Inyama3, M Kooffreh-Ada E Esu4, R Ndoma-Egba2, E Ezedinachi4
1 Department of Internal Medicine, Gastroenterology Unit, University of Calabar Teaching Hospital, Calabar, Cross River State, Nigeria
2 Department of Surgery, Hepatopancreatobiliary Unit, University of Calabar Teaching Hospital, Calabar, Cross River State, Nigeria
3 Department of Medicine, Haematology Unit, University of Calabar Teaching Hospital, Calabar, Cross River State, Nigeria
4 Institute of Tropical Diseases, Research and Prevention, University of Calabar Teaching Hospital, Calabar, Cross River State, Nigeria
|Date of Acceptance||16-Mar-2016|
|Date of Web Publication||13-Apr-2017|
Dr. U C Okonkwo
Department of Internal Medicine, Gastroenterology Unit, University of Calabar Teaching Hospital, Calabar, Cross River State
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Introduction: Hepatitis B virus (HBV) is a public health problem in Nigeria, with 13% of its general population having evidence of a previous or current infection. Lack of awareness of HBV, its risk factors, and its consequences are recognized as major deterrents to adopting positive preventive behavior including immunization among HBV high-risk groups. Objective: The objective of this study is to evaluate the knowledge, attitude, and practice (KAP) of HBV infection among traders. Materials and Methods: A structured KAP questionnaire on HBV infection was administered to traders as part of the activities to mark the World Hepatitis Day in 2014. A score was created for the correct answer to 20 questions. Results: A total of 335 traders were interviewed for this study. The mean age was 33.08 ± 13.8 years and the median age was 29 years. There were 165 males and 170 females. Majority of the traders had secondary education (57.1%) and were of the Ibibio and Igbo tribes. Only 10.4% had HBV vaccination. Only 44.2% of the traders reported having any knowledge of HBV. The most common source for the knowledge was television/radio (25%) and hospitals (22%). The median (interquartile range) of the overall KAP score was low (11, 5–16). The score was least in persons aged 35 years and above, but the difference was not statistically significant (P = 0.33). Conclusion: The knowledge of HBV is low among traders in Calabar metropolis. There is need to intensify educational campaigns for the general public.
Keywords: Attitude and practice, hepatitis B virus, knowledge, traders
|How to cite this article:|
Okonkwo U C, Ngim O E, Osim H, Inyama M A, Esu M K, Ndoma-Egba R, Ezedinachi E. Knowledge of hepatitis B virus infection among traders. Niger J Clin Pract 2017;20:415-20
|How to cite this URL:|
Okonkwo U C, Ngim O E, Osim H, Inyama M A, Esu M K, Ndoma-Egba R, Ezedinachi E. Knowledge of hepatitis B virus infection among traders. Niger J Clin Pract [serial online] 2017 [cited 2022 May 16];20:415-20. Available from: https://www.njcponline.com/text.asp?2017/20/4/415/204404
| Introduction|| |
Infection with hepatitis B virus (HBV) is a serious global public health problem. It remains the major cause of liver-related morbidity and mortality, especially in developing countries such as Nigeria. HBV is a DNA virus which is known to be 100 times more infectious than the human immunodeficiency virus (HIV). It can be transmitted through blood or other body fluids during sexual and nonsexual contacts. Mothers can also transmit it to their children in the perinatal period. It is the second most common carcinogenic agent after tobacco and a major cause of liver cirrhosis and liver cancer, both of which have poor outcomes in terms of morbidity and mortality.
Worldwide, two billion people have been infected with HBV; 360 million have chronic infection, and 600,000 die each year from HBV-related liver diseases, especially liver cancer. In developed countries of America and Europe, the prevalence of HBV infection ranges between 2 and 7%. However, in developing countries in Asia, Africa, and the Middle East, HBV prevalence rates are much higher, reaching 5–20% in the general population. Such variations are related to geographical, social, and cultural factors that relate to the different modes of transmission in these areas., The prevalence of HBV infection in Nigeria is high ranging between 7 and 22%. The World Health Organization has estimated that 20 million Nigerians are infected with HBV and about 5 million die as a result of the consequences.
Knowledge, attitude, and practice (KAP) survey is the most frequently used study tool in determining the health-seeking behavior of any population. Knowledge is typically assessed to ascertain to what extent the individual/community knowledge corresponds to biomedical concepts. Attitude, on the other hand, has been defined as “a learned predisposition to think, feel, and act in a particular way toward a given situation.” Studies have shown a positive linear correlation between knowledge of a particular illness and attitude (health-seeking behavior)., Vaccination for HBV was introduced in Nigeria as part of the national immunization program about a decade ago and most hospitals and laboratories screen for HBV and hepatitis C virus before transfusion. Nonetheless, the prevalence of HBV has remained particularly high as a result of certain traditional/cultural practices and lack of knowledge about the modes of acquisition and prevention. This lack of awareness of HBV, its risk factors, and its consequences are recognized as major deterrents to adopting positive preventive behavior including immunization in HBV endemic populations. Although a number of studies have assessed KAP of HBV in various categories of health workers in Nigeria, few has been done among healthy members of the general population. It is hoped that information from this study will be useful in developing need-based educational materials on HBV for the general population.
Aims and objectives
The aim of this study was to determine KAP of HBV infection among traders in a central market.
| Materials and Methods|| |
This was a cross-sectional, descriptive study. A structured KAP questionnaire on HBV infection was administered to traders in a central market after obtaining a written informed consent as part of the activities to mark the World Hepatitis Day in 2014. A score was created for the correct answer to 20 questions. Components of the questionnaire included questions on knowledge of nature of HBV (5 questions), transmission (12 questions), prevention and control (2 questions), and perception (1 question) [Appendix 1] [Additional file 1]. Before starting data collection, the research team thoroughly reviewed the questionnaire and received orientation training on communication skills and the administration of data collection instrument. Individuals were eligible for inclusion in the study if they were adults (aged at least 18 years) and willing to provide informed consent.
| Data Analysis|| |
Data generated from the study were analyzed using the Statistical Package for Social Sciences (SPSS) Version 20. Continuous variables were presented as means and standard deviation while categorical variables were presented as percentages. KAP and its components' scores were treated as nonparametric data and compared between demographic variables using Wilcoxon–Mann–Whitney test. Statistical significance was established as P < 0.05.
| Results|| |
A total of 335 traders were interviewed for this study. The mean age was 33.08 ± 13.8 years, and the median age was 29 years. There were 165 males and 170 females. A minority of the respondents were either divorced (3%) or widowed (2.4%) while majority were single (56%) or married (41%).The majority had formal education (97.2%), usually secondary education, and were of the Ibibio and Igbo tribes. Only 44.2% reported having any knowledge of HBV. The median (interquartile range) of the overall KAP score was low (11, 5–16) and showed no significant variation according to sociodemographic characteristics [Table 1]. Knowledge of the nature of HBV virus varied significantly with age with those aged 35 years and above having the least score (P = 0.04) [Table 2]. Most (66%) of the respondents believed that HBV is treatable, and even a greater majority (72.6%) responded that it can be prevented by immunization. Nonetheless, only 10.4% reported HBV vaccination and 2.3% actually received three doses of the vaccine. Sixty-three percent did not perceive themselves at risk of acquiring HBV infection while 19% believe it can cause liver cancer. [Table 3] shows the frequency of correct answers to routes of HBV transmission. [Table 4] shows prevalence of risk behaviors that can predispose to HBV acquisition, and the sources of information concerning HBV.
|Table 1: Overall knowledge, attitude and practice (KAP) scores by socio-demographic characteristics|
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|Table 2: Nature of HBV Knowledge, attitude and practice (KAP) scores by socio-demographic characteristics|
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| Discussion|| |
KAP of HBV infection among different categories of health care workers in Nigeria has been widely documented,,, but few data are available for the general population. It is hoped that this study which examined KAP of HBV infection among market traders will fill a gap. The awareness level of 44% for HBV reported in this study is much lower than the 96% reported among hospital workers in Nigeria. This high awareness level was attributed to the frequent educational programs on hepatitis in the hospital environment as well as frequent contact with patients with chronic complications of hepatitis B, a common reason for hospital admission in Nigeria. We are reporting a low overall KAP (11, 5–16) level for HBV with no significant variation according to age, gender, or level of education (P > 0.5). This is comparable to a score of (16, 6–26) obtained among military personnel in Saudi and a mean score of 12 among Chinese immigrants in the USA., Overall KAP scores on nature of HBV were much lower than KAP scores on transmission. Younger persons <35 years had higher KAP scores on nature of HBV compared to persons older than 35 years, and the difference was statistically significant (P = 0.04). Similar results were obtained in another study in Nigeria which reported that predictors of good knowledge of HBV included being <35 years among other variables. This may be because of the relatively increasing awareness of HBV and other sexually transmitted diseases such as HIV in both electronic and social media over the last two decades. Common methods of HBV transmission such as blood transfusion, sexual intercourse, and vertical transmission acknowledged by the respondents were limited (62%, 53%, and 50%, respectively) but were higher than those reported among Saudi military (58%, 40%, and 30%, respectively). The authors suggested that the low KAP scores reported in their study may be due to the highly conservative nature of the Saudi community who find it embarrassing to openly discuss issues such as sexually transmitted diseases or safe sex with partners and friends.
Participants in this study showed poor practice toward HBV. Majority of the participants admitted exposing themselves to risk behaviors that can predispose them to HBV infection such as having multiple sexual partners, sharing sharp objects/toothbrushes, and undergoing traditional female circumcision. Despite being aware of the availability of HBV vaccine, majority of the participants were not vaccinated against HBV. Similar results were reported even among health workers in Nigeria where only 18–65% had received and completed HBV vaccination in spite of a high vaccine awareness level and occasional vaccination program for staff in some of the hospitals.,, Having a tertiary education, a previous hepatitis B surface antigen test, and being male were identified as factors associated with HBV vaccination among healthcare workers although this was not assessed in this study. On the other hand, lack of awareness, nonavailability of vaccine, and high cost had been reported as some of the reasons for not being vaccinated.,,, Studies in far Eastern Asia, a region with high HBV prevalence, showed HBV vaccine coverage of 94–100% among medical specialists as a result of government policy., ul Haq et al. in their assessment of KAP toward HBV in a healthy population in Pakistan noted that participants tended to have poor practices toward HBV because of the poor knowledge of the nature and consequences of HBV infection. This study showed that 19% of the participants are aware that HBV can cause liver cancer. Even a greater percent did not perceive themselves at risk of having HBV infection.
On the contrary, Shalaby et al. in Egypt reported good knowledge of HBV among barbers and their clients which was proportionately related to their attitude and practices including adequate knowledge of precautionary measures and better vaccine uptake.
Mass media and hospitals were the common sources of HBV knowledge in this study, and it differs from reports from Pakistan and Egypt which showed that friends and relatives were the major sources of information concerning HBV. This may be explained by the high level of stigmatization associated with being HBV positive in our environment and as such persons with a positive status tend to hide it from friends and relations.
Several studies have underscored the importance of public health education, vaccination of at-risk population, and early and adequate treatment of infected persons as means of controlling the scourge of viral hepatitis B in endemic populations.,, The lack of awareness of HBV and poor preventive practices observed in this study are an impediment to its effective eradication.
| Conclusion|| |
This study showed there were poor knowledge and practices for HBV among traders, and this may be extrapolated to the general population. The findings are indicative of a lack of basic understanding of infection control and the prevention of transmission of HBV. There is need to intensify public awareness campaigns and possibly enforce a mandatory immunization policy amongst adults to improve the health behavior toward HBV prevention.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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