Prevalence and control of hypertension in a Niger Delta semi urban community, Nigeria

  • Ismail A. Suleiman
  • Ebubechukwu O. Amogu
  • Kehinde A. Ganiyu
Keywords: Hypertension, Prevalence, Nigeria


Background: Hypertension is a public health problem worldwide, but the prevalence in Amassoma, Southern Ijaw Local Government Area is not known.

Objective: To investigate the prevalence of hypertension in the locality and the extent of control in diagnosed cases.

Methods: It is a prospective study involving interviewing. Four hundred adults aged 20 years and above selected through stratified random sampling across the various compounds called “AMA”; a unit of settlement comprising extended families of common ancestors. A self-developed, validated and pretested interviewer-administered questionnaire on demographics, predisposing factors, and medication history was used. In addition, measurement of respondents’ blood pressure, weight and height was carried out. The Body Mass Index calculated and the data were appropriately analysed.

Results: The response rate of questionnaire distribution was 100.0% being interviewer administered alongside weight, height and blood pressure measurement. Majority of respondents were female. Almost half of respondents (46.5%) had their BMI above normal, 15.3% (61) of which falls within the obese region (>30.0kg/m2). The mean (SD) systolic blood pressure among males was 133.3 (3.2) mmHg and that of females was 127.4 (3.0) while the mean (SD) diastolic blood pressures were 86.2 (1.7) and 83.9 (2.4) for males and females respectively. Crude prevalence rate of hypertension in the community was 15.0% (60) out of which 13.8 % (55) were previously diagnosed. The hypertension was that of Stage I in 11.5% (46) and Stage II in 3.5% (14). Hypertension prevalence was slightly higher in males (18.8%) than that of the females (12.5%) (p= 0.0889), Relative Risk (RR)=1.500 [95%CI 0.9422:2.388]. The prevalence rate among 40 years and above was 41.6% (42/101) who also constituted 70.0% (42/60) of participants with hypertension in the survey and 10.5% (42/400) of the total. Of the previously diagnosed cases of hypertension, only 31% (17/55) were taking their drugs during the survey and only 12.7% (07/55) had regular adherence to medication and adequate BP control was achieved in 7.3% (04/55). Majority of the patients on drugs (21.8%) (12/55) were either taking methydopa as monotherapy or in combination with amiloride and hydrochlorothiazide. Other drugs being taken by patients include lisinopril, propranolol, amlodipine, atenolol, nifedipine and low dose aspirin.

Conclusion: The prevalence of hypertension in the semi urban community is 15.0% with a pre-hypertension in another 23.5%. There was poor control of blood pressure among previously hypertensive patients.


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1. Wolf-Maier K, Cooper RS, Banegas JR, Giampaoli S, Hense HW, Joffres M, Kastarinen M, Poulter N, Primatesta P, Rodríguez-Artalejo F, Stegmayr B, Thamm M, Tuomilehto J, Vanuzzo D, Vescio F. Hypertension prevalence and blood pressure levels in 6 European countries, Canada, and the United States. JAMA. 2003;289(18):2363-9.

2. Murray CJ, Lopez AD. Mortality by cause for eight regions of the world. Global burden of disease. Lancet. 1997;349(9061):1269-76.

3. Erhun WO, Olayiwola G, Agbani EO, Omotosho NS. Prevalence of Hypertension in a University Community in SouthWest Nigeria. Afr J Biomed Res. 2005;8:15-9.

4. Suleiman IA, Lumor HA and Okubanjo OO. Pharmacoeconomic Evaluation of Antihypertemsive Therapy Using Cost of Illness Analysis in Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State. Nigerian J Pharm 2005;37:31-3.

5. Amakiri CN, Akang EE, Aghadiuno PU, Odesanmi WO. A prospective study of coroner’s autopsies in University College Hospital, Ibadan, Nigeria. Med Sci Law. 1997;37(1):69-75.

6. Aligbe JU, Akhiwu WO, Nwosu SO. Prospective study of coroner’s autopsies in Benin City, Nigeria. Med Sci Law. 2002;42(4):318-24.

7. Bella AF, Bayewu O, Bamigboye A, Adeyemi ID, Ikuesan BA, Jegede RO. Pattern of medical illness in a community of elderly Nigerians. Cent Afr J Med. 1993;39(6):112-6.

8. Ogunniyi A, Baiyewu O, Gureje O, Hall KS, Unverzagt FW, Oluwole SA, Farlow MI, Komolafe, Hendrie HC. Morbidity pattern in a sample of elderly Nigerians resident in Idikan community, Ibadan. West Afr J Med. 2001;20(4):227-31.

9. Cooper R, Rotimi C, Ataman S, McGee D, Osotimehin B, Kadiri S, Muna W, Kingue S, Fraser H, Forrester T, Bennett F, Wilks R. The prevalence of hypertension in seven populations of West African origin. Am J Public Health. 1997;87(2):160-8.

10. Pobee JO. Community-based high blood pressure programs in sub-Saharan Africa. Ethn Dis. 1993;3(Suppl):S38-45.

11. Amoah AG. Hypertension in Ghana: a cross-sectional community prevalence study in Greater Accra. Ethn Dis. 2003;13(3):310-5.

12. Adedoyin RA, Mbada CE, Balogun MO, Martins T, Adebayo RA, Akintomide A, Akinwusi PO. Akintomide Anthony and Patience O. A Prevalence and pattern of hypertension in a semiurban community in Nigeria. Eur J Cardiovasc Prev Rehabil. 2008;15(6):683-7.

13. Ekwunife OI, Aguwa CN. A meta-analysis of prevalence rate of hypertension in Nigerian populations, J Public Health Epidemiol. 2011;3(13):604-7. doi: 10.5897/JPHE11.104.

14. Ekwunife OI, Udeogaranya PO, Nwafu IL. Prevalence, awareness, treatment and control of hypertension in a Nigerian population. Health 2011;2(7):731-5. DOI: 10.4236/health.2010.27111.

15. Ulasi II, Ijoma CK, Onwubere BJC, Arodiwe E, Onodugo O Okafor C . High prevalence and low awareness of Hypertension in a market population in Enugu, Nigeria. Int J Hypertens. 2011;2011:869675. doi: 10.4061/2011/869675.

16. Ofuya ZM. The Incidence of hypertension among selected population of adults Niger Delta Region of Nigeria. Southeast Asian J Trop Med Pub Health 2007;38(5):947-9.

17. Cappuccio FP, Micah FB, Emmett L, Kerry SM, Antwi S, Martin-Peprah R, Phillips RO, Plange-Rhule J, Eastwood JB. Prevalence, detection, management, and control of hypertension in Ashanti, West Africa. Hypertension. 2004;43(5):1017-22.

18. National Expert Committee on Non-Communicable Diseases (NCD, 1997). Non-Communicable diseases in Nigeria. Final report of a national survey. Federal Ministry of Health and Social Services, Lagos, 1997.

19. Muna WF. The importance of cardiovascular research in Africa today. Ethn Dis. 1993;3(Suppl):S8-12.

20. The Creative Research Systems. The complete survey software solution since 1982. Research Aids. Available at (Accessed February 2011).

21. Chobanian AV, Bakris GL, Black HR, Cushman WC, Green LA, Izzo JL Jr, Jones DW, Materson BJ, Oparil S, Wright JT Jr, Roccella EJ; National Heart, Lung, and Blood Institute Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure; National High Blood Pressure Education Program Coordinating Committee. The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: The JNC 7 Report. JAMA. 2003 May 21;289(19):2560-72.

22. World Health Organization-International Society of Hypertension Guidelines for the Management of Hypertension. Guidelines Subcommittee. Hypertension. 1999;17:1151-83.

23. Nigerian Arts and Culture directory. Available at: (Accessed on 4th February, 2012).

24. Larsen HR. Fish oils and hypertension: Summaries of the latest research concerning fish oils and hypertension. Available at: (Accessed 31ist January, 2012).

25. Kris-Etherton PM, Harris WS, Appel LJ; American Heart Association. Nutrition Committee. Fish Consumption, Fish Oil, Omega-3 Fatty Acids, and Cardiovascular Disease. Circulation. 2002;106(21):2747-57. doi: 10.1161/01.CIR.0000038493.65177.94.

26. Osim EE, Ibu JO. The Effect of Plantains (Musa paradisiaca) on DOCA-Induced Hypertension in Rats. Pharm Biol. 1991;29(1):9-13.

27. Imam MZ. Musa paradisiaca L and Musa sapientum L: A Phytochemical and Pharmacological Review. J App Pharm Sci 2011;1(5);14-20.

28. Adisa R, Fakeye TO, Fasanmade A. Medication adherence among ambulatory patients with type 2 diabetes in a tertiary healthcare setting in south western Nigeria. Pharmacy Practice (Internet) 2011:9(2):72-82.

29. Akinkugbe OO, Ojo AO. The systemic blood pressure in a rural Nigerian population. Trop Geogr Med. 1968;20(4):347-56.

30. Olatunbosun ST, Kaufman JS, Cooper RS, Bella AF. Hypertension in a black population: prevalence and biosocial determinants of high blood pressure in a group of urban Nigerians. J Hum Hypertens. 2000;14(4):249-57.
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