Association between Height and Blood Pressure in Middle Age and Older Adults in Southeast Nigeria.

BACKGROUND: This study was carried out in Abia State, Southeast Nigeria, to determine the association between height and blood pressure in middle age and elderly adults. MATERIALS AND METHODS: This was a cross-sectional study carried out in Abia State, Southeast Nigeria, between August 2011 and March 2012. The participants were residents in the state and were recruited from the three senatorial zones of the state. The total number of participants that took part in the study was 2,487 adults. The World Health Organisation STEPwise approach to surveillance of chronic disease risk factors was used. Information collected included blood pressure and anthropometric measurements. The association between height and blood pressure was determined. RESULTS: A total of 1,363 participants that took part in the study were >40 years old. Six hundred and fifty-five participants (48.1%) were males and 708 participants (51.9%) were females. There was no significant inverse relationship between height and blood pressure components ( Systolic Blood Pressure Diastolic Blood Pressure, and Pulse Pressure ) among the males. Among the females there was a high inverse relationship between height and blood pressure components. However, this relationship was not statistically significant. In addition, among the males there was no relationship between height and hypertension. Among the females, there was some degree of inverse relationship between height and hypertension, although multivariate regression analysis showed that this was not significant. CONCLUSION: There was an inverse but non-significant relationship between height and blood pressure components/ hypertension among males and females in Southeast Nigeria in this study.

CONTEXTE: Cette étude a été menée dans l'État d'Abia, au sud-est du Nigeria, pour déterminer, pour déterminer l'association entre la taille et la pression artérielle chez les adultes d'âge moyen et les personnes âgées. MATÉRIEL ET MÉTHODES: Il s'agissait d'une étude transversale réalisée dans l'État d'Abia, au sud-est du Nigeria, entre août 2011 et mars 2012. Les participants étaient des résidents de l'État et ont été recrutés dans les trois zones sénatoriales de l'État. Le nombre total de participants ayant pris part à l'étude était de 2 487 adultes. L'approche STEPwise de l'Organisation mondiale de la santé pour la surveillance des facteurs de risque des maladies chroniques a été utilisée. Les informations recueillies comprenaient la pression artérielle et les mesures anthropométriques. L'association entre la taille et la pression artérielle a été déterminée. RÉSULTATS: Au total, 1 363 participants à l'étude étaient âgés de plus de 40 ans. Six cent cinquante-cinq participants (48,1%) étaient des hommes et 708 participants (51,9 %) étaient des femmes. Il n'y avait pas de relation inverse significative entre la taille et les composantes de la pression artérielle (pression artérielle systolique, pression artérielle diastolique et pression du pouls) chez les hommes. Chez les femmes, on a constaté une forte relation inverse entre la taille et les composantes de la pression artérielle. Cependant, cette relation n'était pas statistiquement significative. En outre, Chez les hommes, il n'y a pas de relation entre la taille et l'hypertension. Chez les femmes, on a constaté un certain degré de relation inverse entre la taille et l'hypertension, bien que l'analyse de régression multivariée a montré qu'elle n'était pas significative. CONCLUSION: Il existe une relation inverse, mais non significative, entre la taille et les composantes de la pression artérielle/ hypertension chez les hommes et les femmes du sud-est du Nigeria. Mots clés: Taille, Hypertension, Pression artérielle, Pression artérielle systolique.

The Impact of telemedicine during the COVID-19 pandemic in Nigeria: A review

Background: Telemedicine practice is a rapidly evolving aspect of medicine in developed countries, though resource-limited countries like Nigeria are yet to embrace it fully. Moreover, the COVID-19 pandemic has limited patients' visits to hospitals in addition to the social distancing measures deployed by the government. In addition, with the challenges of a limited number of doctors, among other difficulties, it has become important that a radical approach to patient care and treatment should be explored. Methods: A comprehensive literature review of original articles was done using an internet search. Words such as Telemedicine, COVID-19, Pandemic, Requirements, History, Benefits, and Challenges were searched on Google scholar, EMBASE, PubMed, Medline, Web MD, and Scopusto check for various articles published or any probable link. The references of the relevant articles were searched. Results: The practice of telemedicine has evolved over the years. Also, the global telemedicine market has grown exponentially and is expected to grow even further in the next five years. Unfortunately, this exciting narrative is not obtainable in developing countries like Nigeria. Indeed, some healthcare providers in Nigeria need to prepare for this new technological advancement, and consequently, they struggle to evolve their practice to adopt this new technology. Furthermore, there is disinterest from most of the end users, particularly the patients. Conclusion: Modifications must involve telemedicine services with a view of getting ready and well-organized in the event of any future pandemic such as COVID-19, in addition to harnessing the benefits of this service in the future.

Performance of Multiple True or False Options with Negative Scoring Schemes Against Single Best of Five Answer Options in a Medical School.

BACKGROUND AND OBJECTIVES: The multiple true or false (MTF) options with different negative scoring schemes and the Single Best of Five Answer (SBOFA) option of multiple choice questions are used in assessing knowledge in medical schools in Nigeria. There are diverse reasons for specific institutions to use a given scheme. These include large candidates' population, time pressure on those conducting the examination and limited resources. This study was set out to compare the performance of two negative scoring schemes of the MTF pattern of objective questions with the SBOFA pattern as the standard objective questions pattern in a medical school Methodology: In this cross-sectional comparative study, selected response items were administered to medical students. A set comprised of SBOFA options (taken here as A-score) and the other two, MTF options with different negative marking schemes; negative marking (-1/2) as B-score, and negative marking (-1) as C-score. The mean scores were compared among the three schemes. Cutoff or pass mark was 50% across-board. Correlation statistics, Bland Altman plots and ROC analyses were used to compare the two negative scoring schemes of the MTF pattern with the SBOFA pattern as the standard objective questions pattern Results: The mean scores of the students for the schemes were A-score 42.9%, B-score 45.6% and C-score 35.0%. The correlation between A-score and B-score was significant (r=0.351, p=0.009). A-score also correlated significantly with C-score, (r=0.381, p=0.004). In B-score versus A-score the bias was -2.6 (47.4%), limits of agreement -29.4 - 24.1 (20.6% -74.1%). In C-score versus A-score the bias was 8.1 (58.1%) and limits of agreement -21.5 - 37.7 (28.5%-087.7%). For B-score and A-score area under receiver operator curve (AUROC) was 0.720 and for C-score and A-score 0.714. B-score at best cutoff mark 45.0% (sensitivity 93%), predicted A-score 50.0%. C-sore at best cutoff mark 33.0% (sensitivity 93%) predicted A-score 50%. CONCLUSION: The MTF objective questions with negative marking scheme of -1/2 as penalty and the SBOFA scheme were more closely related than the MTF with -1 as penalty and SBOFA option. The SBOFA option had better correlation with the MTF with -1 as penalty while the -1/2 penalty had a much higher pass rate.

Risk Factors for Chronic Kidney Disease in Newly Diagnosed Hypertensive Subjects in Southeast Nigeria.

BACKGROUND: The aim of this study was to determine the prevalence and associated risk factors for chronic kidney disease (CKD) in newly diagnosed hypertensive patients. MATERIALS AND METHODS: This was a cross-sectional analytical study involving consenting newly diagnosed hypertensive patients who presented at GOPD of Federal Medical Centre, Umuahia, within 0-3 months of diagnosis; and non-hypertensive controls. A semi-structured interviewer- administered questionnaire was used to record the socio-demographic, anthropometric, clinical and bio-chemical characteristics of the respondents. Data were analyzed and compared between the hypertensive group and the non-hypertensive control group. RESULTS: Two hundred and sixty participants took part in the study. However, only 240 completed the study (120 hypertensive, and 120 control participants). After follow-up for 3 months, 42 (35.0%) hypertensive patients had CKD compared to 11 (9.2%) of the non-hypertensive control group. The prevalence of CKD in the hypertensive participants was significantly higher (2=23.27, p<0.001). Multivariate regression analysis of CKD with variables in the hypertensive study group showed an association between CKD and sex (p=0.020), serum triglycerides (p=0.030) as well as serum uric acid (p=0.030). In the control group there was significant association between CKD and sex (p=0.020), serum total cholesterol (p=0.030) as well as serum uric acid (p=0.030). CONCLUSION: The prevalence of CKD among newly diagnosed hypertensives in southeast Nigeria was high. In this group, CKD had an association with sex, serum uric acid and serum triglyceride.

Impaired Renal Function and its Predictors among Treatment-Naive HIV-seropositive Patients in a Tertiary Institution in South-East Nigeria.

BACKGROUND: Renal impairment is a significant independent risk factor for mortality among HIV-infected patients. Some antiretroviral drugs are nephrotoxic, especially to the tubules, and their dosage need to be modified in the presence of renal impairment to avoid progression to chronic kidney disease. AIM: To determine the prevalence and predictors of renal impairment among treatment-naïve HIV sero-positive patients seen at Federal Medical Centre, Umuahia, Abia state. MATERIALS AND METHODS: This was a cross-sectional study involving 115 HIV-seropositive treatment-naïve cases and 115 seronegative controls. Questionnaires were administered and history regarding health status was obtained. Participants had biophysical profile measured. Blood and urine specimens were analyzed in the laboratory. The re-expressed modification of diet in renal disease (MDRD) was used to determine estimated Glomerular Filtration Rate (eGFR). Factors found to be associated with renal impairment were subjected to binary logistic regression analysis to determine the predictors of renal impairment. RESULTS: The prevalence of renal impairment among the cases was 27.8%. Factors associated with renal impairment included duration of HIV diagnosis of 12 months and above, significant intake of herbal remedies, hypertension, significant proteinuria, WHO clinical stage 3 or 4, anaemia and CD4 count less than 350cells/µL. Predictors of renal impairment were hypertension, WHO clinical stage 3 or 4 disease, significant proteinuria and significant intake of herbal remedies. CONCLUSION: Renal impairment was prevalent in this sample. Concerted efforts should be directed to early diagnosis of renal impairment among these patients. Reno-protective measures need to be instituted early to avoid deleterious outcomes.

Urine osmolality in treatment-naïve HIV-positive subjects in Southeast Nigeria.

BACKGROUND AND OBJECTIVES: Urine osmolality varies over a wide range of values in a healthy state. Dilute urine or concentrated urine may be observed in many environmental, physiologic, and disease conditions. Urine osmolality is not commonly evaluated in routine clinical practice and in human immunodeficiency virus (HIV) subjects. The factors that influence urine osmolality have not been completely identified. The aim of this study was to evaluate urine osmolality in treatment-naïve HIV subjects and to identify the factors that may influence dilute and concentrated urine in this group of patients. METHODOLOGY: This was a cross-sectional study of treatment-naive HIV subjects conducted in Federal Medical Centre (FMC), Owerri, Nigeria. Demographic and anthropometric data were obtained. Urine osmolality and other relevant investigations were conducted. Normal urine osmolality was defined as 24-h urine osmolality (24 HUOsm) 300-750 mOsm/kgH2O, dilute urine as 24 HUOsm 2O and concentrated urine as 24 HUOsm> 750 mOsm/kgH2O. The association between the variables and urine osmolality and the strength of variables to predict dilute urine and concentrated urine were determined. RESULTS: The mean 24HUOsm was 564 ± 501 mOsm/kgH2O and the mean spot urine osmolality (SUOsm) 464 ± 271 mOsm/kgH2O. Normal urine osmolality was observed in 29.6%, dilute urine in 64.5%, and concentrated urine in 5.9% of the HIV subjects. There was a significant association between urine osmolality and body mass index (BMI), creatinine clearance, as well as serum cholesterol level. Only high-density lipoprotein cholesterol (HDL) predicted dilute urine, whereas BMI, spot urine protein, 24-h urine protein, spot urine creatinine, serum HDL, and CD4 cell count predicted concentrated urine. CONCLUSION: The prevalence of dilute urine was high among the treatment-naïve HIV subjects. Abnormalities of serum lipids, renal function, and weight were common in treatment-naïve HIV subjects who had dilute urine. There is a need for clinicians to routinely assess urine osmolality and further diagnose for dyslipidemia, renal function impairment, and abnormal weight in HIV subjects at the early stage of the infection.

Prevalence and predictors of chronic kidney disease in newly diagnosed human immunodeficiency virus patients in Owerri, Nigeria.

Human immunodeficiency virus (HIV) infection is a common cause of chronic kidney disease (CKD) in Sub-Saharan Africa. This study aims at identifying the prevalence and predictors of CKD in newly diagnosed HIV patients in Owerri, South East Nigeria. This was a cross-sectional study consisting of 393 newly diagnosed HIV-seropositive subjects and 136 age- and sex-matched seronegative subjects as controls. CKD was defined as 24-hour urine protein (24-HUP) ≥0.3 g and/or glomerular filtration rate (GFR) < 60 ml/min. Subjects were recruited from the HIV clinic and the Medical Outpatient Department of Federal Medical Centre, Owerri. Clinical and anthropometric data were collected. Relevant investigations were performed, including HIV screening and relevant urine and blood investigations. The mean age of the HIV subjects was 38.84 ± 10.65 years. CKD was present in 86 (22.9%) HIV subjects and 11 (8.l %) controls. Low waist circumference (WC), high serum creatinine, high spot urine protein/creatinine ratio (SUPCR), high 24-HUP/creatinine Ratio (24-HUPCR), high 24-HUP/osmolality Ratio (24-HUPOR) predicted CKD in HIV subjects. CKD prevalence is high (22.9%) among newly diagnosed HIV patients in South East Nigeria. The predictors of CKD included WC, serum creatinine, SUPCR, 24-HUPCR, and 24-HUPOR.

Awareness level of kidney functions and diseases among adults in a Nigerian population.

The prevalence of kidney diseases is on the increase in Nigeria. The cost of its management is far beyond the reach of an average patient. Prevention is thus of paramount importance and awareness of kidney diseases will help in its prevention. The aim of this study is to assess the level of awareness of kidney functions and diseases among adults in a Nigerian population. A semi-structured, researcher - administered questionnaire was the tool for data collection. Four hundred and thirty-five questionnaires were analyzed. There were 160 males (36.8%) and 275 females (63.2%). The mean age was 42.8 ± 14 years with a range of 18-78 years. Among these, 82.1% were aware of the kidneys' involvement in waste removal from the body through urine while 36% and 29% were aware of kidneys' role in blood pressure regulation and blood production, respectively. Only 26.6% correctly identified at least two basic functions of the kidneys. Also, 32.6% of the respondents were aware of at least three common causes of kidney diseases in our environment. Majority of the respondents (70.7%) did not know that kidney diseases could be inherited. Furthermore, belief in alternative therapy for kidney disease was documented in 83.2%, while unawareness of dialysis as a treatment modality was recorded in 68% of the respondents. The awareness of kidney functions and diseases among the population is poor. Measures are needed to improve this to stem the rising prevalence of chronic kidney disease in Nigeria.

Obstetric outcomes of human herpes virus-2 infection among pregnant women in Benin, Nigeria.

OBJECTIVE: This study investigated the obstetric outcomes of herpes simplex virus (HSV-2) infection among pregnant women. MATERIALS AND METHODS: In this prospective cohort study, a total of 674 consenting pregnant women attending ante-natal clinic in the University of Benin Teaching Hospital and Central Hospital Benin were recruited between November 2011 and December, 2012. The women were screened for HSV-1, and HSV-2 using glycoprotein-G-based type-specific Enzyme Linked Immunosorbent Assay on archived blood samples; and were followed up to the delivery period and postnatal clinic. The HSV-2-seronegative participants underwent second blood sampling for HSV-2 IgG and IgM assay during the delivery period. The patients were thus categorized into "HSV-2 seropositive", "HSV-2-seronegative," and "incident HSV-2 infection" cohorts. The pregnancy outcomes were assessed by review of hospital records. Data analysis was with SPSS version 16 software. RESULTS: Of 674 pregnant women surveyed, 312 (46.3%) were HSV-2 seropositive; while 362 (56.7%) were HSV-2 seronegative. Comparing the "HSV-2 seropositive" and "HSV-seronegative" groups, there were no significant differences in occurrence of low birth weight (LBW), prematurity, spontaneous abortions, and stillbirth events (P=0.96; 0.95; 1.0; and 0.77, respectively). Comparing the "incident HSV-2 infection" with the "HSV-2 seronegative" groups, the relative risks of occurrence of LBW deliveries, preterm deliveries, and stillbirths were 12.6, 25.1, and 4.5, respectively. CONCLUSION: First episode HSV-2 infection among pregnant women in Benin, Nigeria is associated with an increased risk of occurrence of spontaneous abortion, LBW delivery, stillbirths, and preterm delivery.