The relationship between asthma control and health-related quality of life in asthma and the role of atopy: a cross-sectional study of Nigerian adult asthmatics.

INTRODUCTION: the relationship between asthma control and health-related quality of life (HRQoL) in adult asthmatics is fairly established, but the unique contribution of atopy to this relationship has received less attention. The aim of this study was to quantify the contribution of atopy to this relationship. METHODS: in a cross-sectional study, we assessed HRQoL using mini-Asthma Quality of Life Questionnaire (AQLQ). Asthma control, atopy and lung function were assessed using the Asthma Control Test (ACT), skin prick test and spirometry respectively. Hierarchical multiple regression was used to examine the association between of HRQol and asthma control, atopy and other clinical and demographical factors. RESULTS: eighty-two adult asthmatics (59 females), with median age of 44 years and median duration of asthma of 15 years were recruited from a tertiary hospital. Fifty-two (63%) were classified as atopic based on sensitization to at least one aeroallergen. The atopic individuals were younger and had better quality of life in activity domain; however, there was no significant difference between the atopic and non-atopic asthmatics in ACT score (19.0 vs 18.0) p=0.91, total AQLQ score (4.9 vs 4.6) p=0.22. The ACT scores correlated positively with total AQLQ scores [rho= 0.53, 95% Confidence Interval (CI) 0.35, 0.67; p< 0.001]. However, atopy contributed significantly to the emotional domain of HRQoL score, p=0.028. CONCLUSION: we concluded that better asthma control is associated with better quality of life and atopy contributed uniquely to emotional domain in health-related quality of life.

Lassa fever coinfection with COVID-19 among health care workers: report of two cases

Lassa fever (LF) coinfection with hepatitis B and HIV has been reported among hospitalized patients in Southwest Nigeria and HIV patients coinfected with COVID-19 have been described among hospitalized patients in North Central Nigeria, no study has reported cases of coinfection of Lassa disease and COVID-19 among health care workers (HCWs) worldwide. A case report of two HCWs who were infected with both LF virus and SARS-CoV-2 virus at same time and were successfully managed without any sequelae. Both cases presented with typical signs of LF with COVID-19 suspected, they were promptly diagnosezd with positive outcomes after treatment. While case 1 became negative for LF virus and SARS-CoV-2 after 6 and 30 days, respectively, case 2 became negative for both viruses after 14 and 32 days, respectively. The diagnosis of LF-COVID-19 coinfection in HCWs is a frightening dimension to the health risks faced by HCWs, therefore, HCWs now more than ever before want to know what comes next and how safe is the practice of medicine

Lassa fever coinfection with COVID-19 among health care workers: Report of two cases

Lassa fever (LF) coinfection with hepatitis B and HIV has been reported among hospitalized patients in Southwest Nigeria and HIV patients coinfected with COVID-19 have been described among hospitalized patients in North Central Nigeria, no study has reported cases of coinfection of Lassa disease and COVID-19 among health care workers (HCWs) worldwide. A case report of two HCWs who were infected with both LF virus and SARS-CoV-2 virus at same time and were successfully managed without any sequelae. Both cases presented with typical signs of LF with COVID-19 suspected, they were promptly diagnosed with positive outcomes after treatment. While case 1 became negative for LF virus and SARS-CoV-2 after 6 and 30 days, respectively, case 2 became negative for both viruses after 14 and 32 days, respectively. The diagnosis of LF-COVID-19 coinfection in HCWs is a frightening dimension to the health risks faced by HCWs, therefore, HCWs now more than ever before want to know what comes next and how safe is the practice of medicine.

General and tuberculosis-specific service readiness in two states in Nigeria.

BACKGROUND: Tuberculosis is the world's deadliest infectious disease and a leading cause of death in Nigeria. The availability of a functional healthcare system is critical for effective TB service delivery and attainment of national and global targets. This study was designed to assess readiness for TB service delivery in Oyo and Anambra states of Nigeria. METHODS: This was a facility-based study with a mixed-methods convergent parallel design. A multi-stage sampling technique was used to select 42 primary, secondary, and tertiary healthcare facilities in two TB high burden states. Data were collected using key informant interviews, a semi-structured instrument adapted from the WHO Service Availability and Readiness Assessment tool and facility observation using a checklist. Quantitative data were analysed using descriptive and inferential statistics while qualitative data were transcribed and analysed thematically. Data from both sources were integrated to generate conclusions. RESULTS: The domain score for basic amenities in both states was 48.8%; 47.0% in Anambra and 50.8% in Oyo state with 95% confidence interval [- 15.29, 7.56]. In Oyo, only half of the facilities (50%) had access to constant power supply compared to 72.7% in Anambra state. The overall general service readiness index for both states was 69.2% with Oyo state having a higher value (73.3%) compared to Anambra with 65.4% (p = 0.56). The domain score for availability of staff and TB guidelines was 57.1% for both states with 95% confidence interval [- 13.8, 14.4]. Indicators of this domain with very low values were staff training for the management of HIV and TB co-infection and training on MDR -TB. Almost half (47.6%) of the facilities experienced a stock out of TB drugs in the 3 months preceding the study. The overall tuberculosis-specific service readiness index for both states was 75%; this was higher in Oyo (76.5%) than Anambra state (73.6%) (p = 0.14). Qualitative data revealed areas of deficiencies for TB service delivery such as inadequate infrastructure, poor staffing, and gaps with continuing education on TB management. CONCLUSIONS: The weak health system remains a challenge and there must be concerted actions and funding by the government and donors to improve the TB healthcare systems.

Tuberculosis treatment outcomes and associated factors in two states in Nigeria.

OBJECTIVE: To determine the treatment success rate among TB patients and associated factors in Anambra and Oyo, the two states with the largest burden of tuberculosis in Nigeria. METHODS: A health facility record review for 2016 was conducted in the two states (Anambra and Oyo). A checklist was used to extract relevant information from the records kept in each of the selected DOTS facilities to determine TB treatment success rates. Treatment success rate was defined as the proportion of new smear-positive TB cases registered under DOTS in a given year that successfully completed treatment, whether with bacteriologic evidence of success ('cured') or without ('treatment completed'). Treatment success rate was classified into good (≥85%) and poor (<85%) success rates using the 85% national target for TB treatment outcome. Data were analysed using descriptive statistics and chi-square at P < 0.05. RESULTS: There were 1281 TB treatment enrollees in 2016 in Anambra and 3809 in Oyo (total = 4835). An overall treatment success rate of 75.8% was achieved (Anambra-57.5%; Oyo-82.0%). The percentage cure rates were 61.5% for Anambra and 85.2% for Oyo. Overall, only 28.6% of the facilities in both states (Anambra-0.0%; Oyo-60.0%) had a good treatment success rate. More facilities in Anambra (100.0%) than Oyo (40.0%) had a poor treatment success rate (p < 0.001), as did more private/FBO (100.0%) than public health facilities (60.0%) (p = 0.009). All tertiary facilities had a poor treatment success rate followed by 87.5% of secondary health facilities and 56.5% of primary healthcare facilities (P = 0.035). CONCLUSION: Treatment success and cure rates in Anambra state were below the 85.0% of the recommended target set by the WHO. Geographical location, and level/tier and type of facility were factors associated with this. Interventions are recommended to address these problems.

OBJECTIF: Déterminer le taux de succès du traitement chez les patients TB et les facteurs associés à Anambra et Oyo, les deux Etats avec la plus grande charge de TB au Nigéria. MÉTHODES: Un examen des dossiers des établissements de santé pour 2016 a été réalisé dans les deux Etats (Anambra et Oyo). Une liste de contrôle a été utilisée pour extraire les informations pertinentes des registres conservés dans chacun des établissements DOTS sélectionnés afin de déterminer les taux de succès du traitement antituberculeux. Le taux de succès du traitement a été défini comme la proportion de nouveaux cas de TB à frottis positif enregistrés dans le cadre du DOTS au cours d'une année donnée qui ont terminé le traitement avec succès, que ce soit avec des preuves bactériologiques de succès («guéri¼) ou sans («traitement terminé¼) . Le taux de succès du traitement a été classé en bons (≥ 85%) et mauvais (<85%) taux de réussite en utilisant l'objectif national de 85% pour l'issue du traitement de la TB. Les données ont été analysées à l'aide de statistiques descriptives et du Chi carré à p <0,05. RÉSULTATS: Il y avait 1.281 personnes inscrites au traitement antituberculeux en 2016 à Anambra et 3.809 à Oyo (total = 4835). Un taux de succès global du traitement de 75,8% a été atteint (Anambra, 57,5%; Oyo, 82,0%). Les taux de guérison en pourcentage étaient de 61,5% pour Anambra et de 85,2% pour Oyo. Dans l'ensemble, seuls 28,6% des établissements des deux Etats (Anambra, 0,0%; Oyo, 60,0%) avaient un bon taux de réussite du traitement. Plus d'établissements à Anambra (100,0%) qu'à Oyo (40,0%) avaient un faible taux de réussite du traitement (p <0,001), tout comme plus d'établissements de santé privés/FBO (100,0%) que publics (60,0%) (p = 0,009). Tous les établissements tertiaires avaient un faible taux de réussite du traitement, suivis de 87,5% des établissements de santé secondaires et 56,5% des établissements de soins de santé primaires (p = 0,035). CONCLUSION: Le succès du traitement et les taux de guérison dans l'Etat d'Anambra étaient inférieurs aux 85,0% de l'objectif recommandé fixé par l'OMS. L'emplacement géographique, le niveau et le type d'établissement étaient des facteurs associés à cela. Des interventions sont recommandées pour résoudre ces problèmes.

Knowledge of spacer device, peak flow meter and inhaler technique (MDIs) among health care providers: an evaluation of doctors and nurses.

BACKGROUND: Metered dose inhalers are cornerstone in effective management of bronchial asthma when correctly used. Most studies hitherto have focused on assessing patient's knowledge of inhaler technique. We sought to assess the knowledge of inhaler technique, spacer device and peak flow meter among doctors and nurses in a tertiary healthcare institution in Nigeria. METHOD: A cross sectional survey of nurses and doctors from emergency department, family and internal medicine; who were attending a continuous professional development lecture, was carried out. From a total of 100 questionnaires administered, we retrieved 87 of which 75 were completed, giving a response rate of 75%. It was a self-administered questionnaire. Data was analysed with SPSS version 21.0. Descriptive statistics were done. Association was examined using chi-square test. RESULT: Mean age of respondent was 35.8 years ± 8.7, 47(62.7%) were < 40 years, 33(44%) were male, nurses were 30(40.0%). Only 28(37.3%) had ever used a peak flow meter. Only 4(14.3%) used peak flow meter frequently, while 12(26.7%) checked patient's inhaler technique often. Only 9 out of the 75 (12%) participants all of who are doctors knew at least 3 essential steps of the techniques in using the metered dose inhaler correctly. None of the participants got all the steps for the use of pMDI totally correct. CONCLUSION: Knowledge regarding the use of the metered dose inhaler and spacer device was poor. Health practitioners should have constant reminders in the form of continuous medical education to update their knowledge regarding correct inhaler technique. FUNDING: self-funded.

Domestic solid fuel combustion in an adult population in Nigeria: A cross sectional analysis of association with respiratory symptoms, quality of life and lung function.

BACKGROUND AND OBJECTIVES: We examined the association of respiratory symptoms, health status, and lung function with the use of solid fuel (wood, charcoal, coal or crop residue) for cooking or heating in a predominantly non-smoking population. METHODS: Using the protocol of the Burden of Obstructive Lung Diseases (BOLD) initiative, we collected representative population data using questionnaires and spirometry tests. We categorized solid fuel use into 'never user', 'ex user' and 'current user' based on responses to the survey. We developed regression models to evaluate the relation between use of solid fuel and the prevalence of respiratory symptoms, quality of life and lung function adjusting for confounding variables. RESULTS: Out of 1147 respondents with complete information on domestic fuel type, 33% were 'never-users', 19% were 'ex-users' while 48% reported current use of solid fuel for domestic cooking and/or indoor heating. Compared with never-users, current solid fuel users were more likely to report cough (OR: 1.7, 95% CI: 1.0, 2.9), cough or phlegm (OR: 1.6, 95% CI: 1.0, 2.5) and the association was stronger among women (OR: 3.0, 95% CI: 1.3, 7.1 and OR: 2.3, 95% CI: 1.1, 5.2, respectively). Current solid fuel users also had lower mental health status (coefficient: ?1.5, 95% CI: ?2.8, - 0.2) compared with the group of never-users. Current or previous domestic use of solid fuels for cooking or heating was not associated with higher prevalence of chronic airflow obstruction (FEV1/FVC < LLN). CONCLUSIONS: Using solid fuel for domestic cooking or heating was associated with a higher risk of cough or phlegm and a lower mental quality of life. However we found no significant effect in the prevalence of chronic airflow obstruction in Ife, Nigeria.

Reduced Forced Vital Capacity in an African Population. Prevalence and Risk Factors.

RATIONALE: Black Africans have reduced FVC compared with white persons, but the prevalence and determinants of reduced values are not well understood. OBJECTIVES: To evaluate the prevalence and factors leading to reduced FVC in a Nigerian population and to examine current theories regarding the determinants of this difference. METHODS: We studied the ventilatory function of 883 adults aged 40 years or older participating in the Burden of Obstructive Lung Disease Study in Ile-Ife, Nigeria. Respondents completed pre- and post-bronchodilator spirometry test and provided information on their smoking history, respiratory symptoms, risk factors, and diagnoses, including anthropometric details. We used standard categories to define body mass index as either underweight, normal, overweight, or obese. We defined reduced FVC as a post-bronchodilator FVC below the lower limit of normal using National Health and Nutrition Examination Survey (NHANES) equations, Global Lung Function Initiative 2012 equations, and local reference equations based on nonsmoking study participants without a respiratory diagnosis. We fit multivariate linear regression models to FVC as a continuous measure, adjusting for age, sex, height, and other confounders. RESULTS: The prevalence of reduced FVC was 70.4% for men and 72.8% for women when using NHANES values for white Americans, 17.8% for men and 14.4% for women using NHANES equations for African Americans, and 15.5% for men and 20.5% for women using the Global Lung Function Initiative 2012 equations. Using the equations derived from nonsmoking respondents in the survey without a respiratory diagnosis, the prevalence of reduced FVC was less than 4% for both men and women. FVC was lower in participants who had less than 7 years of education (FVC, -96 ml; 95% confidence interval [CI], -172 to -19), were underweight (FVC, -269 ml; 95% CI, -464 to -73), were overweight (FVC, -132 ml; 95% CI, -219 to -46), and were obese (FVC, -222 ml; 95% CI, -332 to -112). CONCLUSIONS: There is a wide variation in the prevalence of reduced FVC based on the reference standard used. This variation is not satisfactorily explained by factors thought to affect FVC within individual populations. However, the prevalence strongly associates with both education level and body mass index in this population, regardless of the specific standard used.

Gaps in capacity for respiratory care in developing countries. Nigeria as a case study.

There are unmet needs for respiratory medical care in developing countries. We sought to evaluate the quality and capacity for respiratory care in low- and lower-middle-income countries, using Nigeria as a case study. We obtained details of the respiratory practice of consultants and senior residents (fellows) in respiratory medicine in Nigeria via a semistructured questionnaire administered to physician attendees at the 2013 National Congress of the Nigerian Thoracic Society. Out of 76 society-registered members, 48 attended the congress, 40 completed the questionnaire, and 35 provided complete data (73% adjusted response rate). Respondents provided information on the process and costs of respiratory medicine training and facility, equipment, and supply capacities at the institutions they represented. Approximately 83% reported working at a tertiary level (teaching) hospital; 91% reported capacity for sputum smear analysis for acid alcohol-fast bacilli, 37% for GeneXpert test cartridges, and 20% for BACTEC liquid sputum culture. Only 34% of respondents could perform full spirometry on patients, and none had the capacity for performing a methacholine challenge test or for measuring the diffusion capacity for carbon monoxide. We estimated the proportion of registered respiratory physicians to the national population at 1 per 2.3 million individuals. Thirteen states with an estimated combined population of 57.7 million offer no specialist respiratory services. Barriers to development of this capacity include the high cost of training. We conclude that substantial gaps exist in the capacity and quality of respiratory care in Nigeria, a pattern that probably mirrors most of sub-Saharan Africa and other countries of similar economic status. Health policy makers should address these gaps systematically.

Respiratory symptom, lung function and exhaled carbon monoxide among a sample of traffic workers in Lagos, Nigeria: A pilot survey.

BACKGROUND: Traffic-related air pollution (TRAP) is a major source of air pollution but the impact on health in Nigeria is not well described. PATIENTS AND METHODS: A descriptive cross-sectional study of road traffic workers and university students in Lagos. Eligible, accessible and willing participants were included in the sample. Respiratory symptoms and anthropometry were obtained from all the participants using an adapted Medical Research Council (MRC) questionnaire and they all did a spirometry test and exhaled carbon monoxide (CO) test. RESULTS: Fifty-nine individuals participated with complete data, including 47 traffic policemen and 12 students who acted as controls. The mean age (SD) was 35.1 (8.0) and 35.4 years (6.3) for the traffic workers and students, respectively. All the respondents were men. The mean (SD) duration of occupation as a traffic policeman was 4.4 (4.4) and a median of 4 years (range 1-25). There was no significant difference in the presentation of respiratory and non-respiratory symptoms between the two groups. Compared with the students, the traffic workers had higher age, height and sex adjusted forced expiratory volume in one second and forced vital capacity. Traffic policemen had significantly higher levels of exhaled CO than the students (1.18 vs 0.73 ppm, P < 0.006). CONCLUSION: There is a high prevalence of respiratory symptoms in both traffic policemen and non-traffic residents of Lagos metropolis, indicating widespread pollution.

Differences in serial lung function recorded on four data-logging meters.

OBJECTIVE: Lung function measurements performed several times daily are useful for the diagnosis of occupational asthma. Patient fabrication of hand-recorded charts can limit confidence in the results; this is overcome using electronic meters that log time and measurement. We have compared individual and meter differences in FEV1 and PEF recorded by hand and from meter logs using expert subjects on four data-logging spirometers with different methods of measurement and different quality control software. METHODS: Eight workers in a respiratory physiology department were asked to record FEV1 and PEF 2-hourly from waking for 7 days using four electronic meters (Easyone, Micro DL, Vitalograph Diary card 2110 and Piko-1) in random order. Subjects hand-recorded the best FEV1 and PEF from each session, this was compared with the logged data. RESULTS: Discordant measurements from individuals were lower for FEV1 than PEF and differed from 4.4-19.1% for FEV1 (mean 9.4%, p < 0.0001) and 6-23.3% for PEF (mean 12.6, p < 0.0001). There were also significant differences between meters for both variables (p < 0.0001). The magnitude of the differences in PEF was highest for the Easyone (34l/min) and lowest for the Vitalograph Diary card 2110 (14l/min) and varied significantly between meters (mean 22l/min, p = 0.002). CONCLUSIONS: Differences between hand-recorded and logged measurements are unlikely to be due solely to patient fabrication and can be due to quality criteria or other unclear software requirements applied after the results are shown on the meter screen; they differ between meters. Whether the differences shown affect clinical outcome will require further investigation.