Determinants of blood pressure control among hypertensive patients attending a rural teaching hospital in Southern Nigeria

Background

Hypertension (HTN) is the commonest cardiovascular risk factor in sub-Saharan Africa. It is a global public health threat, often associated with significant morbidities and mortality with rising prevalence both in rural and semi-urban areas of economically disadvantaged countries.

Aim

This study aimed to assess the determinants of blood pressure control among patients with hypertension receiving care at the Irrua Specialist Teaching Hospital in Southern Nigeria.

Patients and Methods

A cross-sectional study of 502 consenting hypertensive adults receiving care at the Irrua Specialist Teaching Hospital, Irrua in Edo State, South-south Nigeria. A pre-tested semi-structured interviewer-administered questionnaire was used to collect data which was analyzed using SPSS version 21 and the level of significance was set at P < 0.05.

Results

Five hundred and two participants (226 males, 276 females) completed the study with a mean age of 52.98 ± 12.82 years. Optimal blood pressure control was found in 15.5% of the study participants. Blood pressure control was significantly associated with being married (OR 1.549, CI: 1.040-2.309), having a monthly household income of over N50,000 (OR 1.691, CI: 0.999-2.863), engaging in physical activity (OR = 1.537, CI: 0.989-2.388), and not being obese evidenced by a normal Waist Hip Ratio (OR = 2.276, CI: 1.555-3.332).

Conclusion

Blood pressure control to target goal was low in the study population and achieved only in less than one-fifth of respondents on antihypertensive therapy. Numerous socio-demographic and lifestyle variables were shown to be associated with blood pressure control. Physicians should emphasize medication adherence and lifestyle modification approaches in hypertensive adults.

A Multicentre Study of Awareness and Practice of Vaccination Against Infectious Diseases Among Haemo-Dialysis Subjects in Nigeria

BACKGROUND

Numerous studies indicate that immunization against vaccine-preventable infectious diseases lowers mortality among Chronic Kidney Disease/dialysis patients and improve their quality of life. However, their knowledge and practice of this appears to be poor in Nigeria and parts of Africa.

OBJECTIVES

We set out to determine subjects' awareness of vaccination against preventable infectious diseases and its impact on their participation in vaccination programs.

METHODS

A prospective, cross-sectional study. Data was collated using questionnaires, laboratory results and dialysis entries and analyzed using IBM SPSS Statistics19.

RESULTS

One hundred and twenty-four participants (mean age, 48.26±14.45 years) undergoing maintenance haemodialysis were studied. Sixty-two subjects (50.4%), 15.3% and 16.9% had heard of Hepatitis B Virus, S. pneumoniae and H. influenza virus respectively. Thirty-four (54.6%) of the participants first heard of these infections from sources other than healthcare personnel. Of the three common infections, study participants only received formal counselling on Hepatitis B Virus (HBV) infection. Majority had never heard of S. pneumoniae or H. influenzae. Seven (5.7%) had completed their HBV immunisation schedule only. Better educated participants were more aware of necessary vaccination against Hepatitis B Virus (p=0.000) S. pneumoniae (p=0.005) and H. influenza virus (p = 0.003). A significantly higher proportion of participants who received health-personnel driven formal education commenced vaccination against Hepatitis B virus (p=0.000).

CONCLUSION

Awareness and practice of vaccination against infectious diseases by haemodialysis patients was found to be poor. Defective system and practice of information dissemination by healthcare workers was remarkably contributory.

Seroprevalence of hepatitis B and C and HIV in Malawian pregnant women

OBJECTIVES

to describe the seroprevalence of hepatitis B (HBV) and C (HCV) infection in HIV-positive and HIV-negative pregnant women from rural Malawi.

METHODS

descriptive study using serum samples collected between 1993-1995 in the Shire valley in rural Malawi. Fifty HIV-positive and 100 HIV-negative samples were selected randomly from 153 HIV-positive and 443 HIV-negative women delivering in the hospital.

RESULTS

evidence of HBV and HCV infection was found in 71.7 and 16.5% of women, respectively. Chronic carriage of HBV (HBsAg positive) is high (13%) and in agreement with prevalences reported from highly endemic areas. Exposure to HBV and HCV probably occurred well before adulthood as the prevalence of anti-HBc antibody was high in young mothers <20 years of age (22/27; 81%).

CONCLUSION

HBV and HCV infections are highly endemic in rural Malawi. There was no statistical evidence to suggest that HIV positivity was associated with an increased prevalence of HBV or HCV markers. Infection with HBV or HCV was not statistically associated.