Epidemiology, diagnostics and factors associated with mortality during a cholera epidemic in Nigeria, October 2020-October 2021: a retrospective analysis of national surveillance data

Objectives
Nigeria reported an upsurge in cholera cases in October 2020, which then transitioned into a large, disseminated epidemic for most of 2021. This study aimed to describe the epidemiology, diagnostic performance of rapid diagnostic test (RDT) kits and the factors associated with mortality during the epidemic.

Design
A retrospective analysis of national surveillance data.

Setting
33 of 37 states (including the Federal Capital Territory) in Nigeria.

Participants
Persons who met cholera case definition (a person of any age with acute watery diarrhoea, with or without vomiting) between October 2020 and October 2021 within the Nigeria Centre for Disease Control surveillance data.

Outcome measures
Attack rate (AR; per 100 000 persons), case fatality rate (CFR; %) and accuracy of RDT performance compared with culture using area under the receiver operating characteristic curve (AUROC). Additionally, individual factors associated with cholera deaths and hospitalisation were presented as adjusted OR with 95% CIs.

Results
Overall, 93 598 cholera cases and 3298 deaths (CFR: 3.5%) were reported across 33 of 37 states in Nigeria within the study period. The proportions of cholera cases were higher in men aged 5–14 years and women aged 25–44 years. The overall AR was 46.5 per 100 000 persons. The North-West region recorded the highest AR with 102 per 100 000. Older age, male gender, residency in the North-Central region and severe dehydration significantly increased the odds of cholera deaths. The cholera RDT had excellent diagnostic accuracy (AUROC=0.91; 95% CI 0.87 to 0.96).

Conclusions
Cholera remains a serious public health threat in Nigeria with a high mortality rate. Thus, we recommend making RDT kits more widely accessible for improved surveillance and prompt case management across the country.

Leggi
Settembre 2022

Magnitude of birth trauma and its associated factors in South Wollo public hospitals, northeast Ethiopia, August 2021: Institutional-Based Cross-Sectional Study

Objective
The institutional-based cross-sectional study was designed to assess the magnitude of birth trauma and its associated factors in South Wollo, northeast Ethiopia.

Setting
This study was conducted in the public hospitals of South Wollo, northeast Ethiopia. South Wollo is one of the 12 zones in the Amhara regional state with a total population of >3 million. There are 13 hospitals in South Wollo, of these 4 hospitals were selected randomly.

Participants
A total of 612 mother-newborn pairs were selected to conduct the study. However, data were collected from 594 mother-neonate pairs giving a response rate of 97%. The study participants were selected by applying a simple random sampling technique after proportional allocation of the total sample to each study hospital. Live neonates delivered during the study period were included, whereas stillborn, neonates born with major congenital malformation and neonates whose mothers died during the birth process were excluded.

Result
A total of 594 mother-newborn pairs were involved with a response rate of 97%. Seventy-eight newborns 13.13% (95% CI: 10.30 to 16.00) had experienced birth trauma. Prolonged labour (AOR: 5.78, 95% CI: 3.00 to 11.15), birth weight >4 kg (AOR: 9.18, 95% CI: 3.92 to 21.50), vacuum delivery (AOR: 6.74, 95% CI: 2.01 to 22.56), forceps delivery (AOR: 7.36, 95% CI: 1.96 to 27.58) and shoulder dystocia (AOR: 9.83, 95% CI: 4.13 to 23.50) were risk factors of birth trauma.

Conclusion
The prevalence of birth trauma was higher than the report from most of the African countries. Prolonged labour, instrumental deliveries, large birth weight and shoulder dystocia were the identified risk factors of birth trauma. The ministry of health and the local healthcare system should give attention to the maternal health services.

Leggi
Settembre 2022

Risk factors for infections after endoscopic retrograde cholangiopancreatography (ERCP): a retrospective cohort analysis of US Medicare Fee-For-Service claims, 2015-2021

Objective
Contaminated reprocessed duodenoscopes pose a serious threat to patients in the endoscopy unit. Despite manufacturer changes to reprocessing guidelines, 20% of reprocessed duodenoscopes meet criteria for quarantine-level contamination based on microbiological or ATP testing. We aimed to examine risk factors for postendoscopic retrograde cholangiopancreatography (ERCP) infection.

Design
Retrospective cohort analysis.

Setting
US Medicare Fee-For-Service claims (2015–2021) and all-payer data (2017).

Participants
In the Medicare data, 823 575 ERCP procedures were included. The all-payer five-state data, 16 609 procedures were included.

Interventions
ERCP was identified by Current Procedural Terminology and International Classification of Disease (ICD) procedure codes. We identified inpatient infections using ICD diagnosis codes.

Outcome measures
A logistic regression model predicted risk factors for infections occurring within 7-day and 30-day periods following ERCP. 7-day and 30-day all-cause hospitalisations and post-ERCP pancreatitis were also examined.

Results
Post-ERCP infection occurred within 3.5% of 7-day and 7.7% of 30-day periods in Medicare. Disposable duodenoscopes were billed in 711 procedures, with 1.4% (n=10, 7-day) and 3.5% (n=25, 30-day) post-ERCP infections. Urgent ERCPs were the strongest risk factor for infections in the 7-day period (OR 3.3, 95% CI 3.2 to 3.4). Chronic conditions, sex (male), age (older) and race (non-white) were also risk factors. In the all-payer five-state data, fewer infections (2.4%, 7 days) were observed. No difference arose between Medicare and other payers for 7-day period infections (OR 1.0, 95% CI 0.7 to 1.3).

Conclusions
Urgent ERCPs, patient chronic conditions and patient demographics are post-ERCP infection risk factors. Patients with infection risk factors should be targeted for specialised infection control prevention measures, including disposable duodenoscopes.

Leggi
Settembre 2022

Pre-COVID-19 pandemic health-related behaviours in children (2018-2020) and association with being tested for SARS-CoV-2 and testing positive for SARS-CoV-2 (2020-2021): a retrospective cohort study using survey data linked with routine health data in Wales, UK

Objectives
Examine if pre-COVID-19 pandemic (prior March 2020) health-related behaviours during primary school are associated with (1) being tested for SARS-CoV-2 and (2) testing positive between 1 March 2020 and 31 August 2021.

Design
Retrospective cohort study using an online cohort survey (January 2018 to February 2020) linked with routine PCR SARS-CoV-2 test results.

Setting
Children attending primary schools in Wales (2018–2020), UK, who were part of the Health and Attainment of Pupils in a Primary Education Network (HAPPEN)_school network.

Participants
Complete linked records of eligible participants were obtained for n=7062 individuals. 39.1% (n=2764) were tested (age 10.6±0.9; 48.9% girls) and 8.1% (n=569) tested positive for SARS-CoV-2 (age 10.6±1.0; 54.5% girls).

Main outcome measures
Logistic regression of health-related behaviours and demographics were used to determine the ORs of factors associated with (1) being tested for SARS-CoV-2 and (2) testing positive for SARS-CoV-2.

Results
Consuming sugary snacks (1–2 days/week OR=1.24, 95% CI 1.04 to 1.49; 5–6 days/week OR=1.31, 95% CI 1.07 to 1.61; reference 0 days), can swim 25 m (OR=1.21, 95% CI 1.06 to 1.39) and age (OR=1.25, 95% CI 1.16 to 1.35) were associated with an increased likelihood of being tested for SARS-CoV-2. Eating breakfast (OR=1.52, 95% CI 1.01 to 2.27), weekly physical activity ≥60 min (1–2 days OR=1.69, 95% CI 1.04 to 2.74; 3–4 days OR=1.76, 95% CI 1.10 to 2.82; reference 0 days), out-of-school club participation (OR=1.06, 95% CI 1.02 to 1.10), can ride a bike (OR=1.39, 95% CI 1.00 to 1.93), age (OR=1.16, 95% CI 1.05 to 1.28) and girls (OR=1.21, 95% CI 1.00 to 1.46) were associated with an increased likelihood of testing positive for SARS-CoV-2. Living in least deprived areas (quintile 4 OR=0.64, 95% CI 0.46 to 0.90; quintile 5 OR=0.64, 95% CI 0.46 to 0.89) compared with the most deprived (quintile 1) was associated with a decreased likelihood.

Conclusions
Associations may be related to parental health literacy and monitoring behaviours. Physically active behaviours may include coparticipation with others and exposure to SARS-CoV-2. A risk-versus-benefit approach must be considered in relation to promoting these health behaviours, given the importance of health-related behaviours such as childhood physical activity for development.

Leggi
Settembre 2022

Career aspirations of specialty among medical students in sub-Saharan Africa: a systematic review and meta-analysis of data from two decades, 2000-2021

Objectives
To determine the distribution of career aspirations for the discipline of specialty among undergraduate medical students in sub-Saharan Africa (SSA).

Design
We searched PubMed/MEDLINE, EMBASE Google Scholar and Google for studies published between 1 January 2000 and 31 June 2021. Two reviewers extracted data from eligible studies, with disagreements resolved through consensus with a third reviewer. The random effects model was used to pool proportions, presented with the corresponding 95% CI. Heterogeneity was assessed using Cochrane’s (Q) test but quantified with I2 values. Sources of heterogeneity were checked using meta-regression analysis while publication bias was assessed using funnel plot and Egger’s test.

Setting
SSA.

Participants
Undergraduate medical students.

Outcomes
Primary outcome was pooled proportion of career aspirations for the discipline of medical specialty and the secondary outcome was reasons for the specialty selection.

Results
We identified 789 citations but meta-analysed 32 studies, with an overall sample size of 8231 participants. The most popular career aspiration for the discipline of specialty was surgery (29.5%; 95% CI 25.0% to 34.2%), followed by internal medicine (17.3%, 95% CI 11.7% to 23.7%), and then obstetrics and gynaecology (15.0%, 95% CI 12.3% to 17.9%), and paediatrics (11.3%; 95% CI 9.6% to 13.2%). The less popular medical disciplines of specialty included public health, orthopaedics, ophthalmology, family medicine, pathology, anaesthesiology, dermatology, otolaryngology, psychiatry and emergency medicine. The reasons for the selection of a medical discipline for specialty related to mentor and peer influences, prospect for economic gains, personal factors, long-term career interests and goals and discipline-specific factors.

Conclusion
Surgery is the most preferred career aspiration for medical students in SSA, followed by internal medicine. The choices do not necessarily match the disease burden on the continent and medical schools should consider strengthening career counselling and mentoring in their curriculum.

PROSPERO registration number
CRD42021260501.

Leggi
Agosto 2022

Mapping the extent, range and nature of research activity on value-based healthcare in the 15 years following its introduction (2006-2021): a scoping review

Objectives
We aimed to systematically map the extent, range and nature of research activity on value-based healthcare (VBHC), and to identify research gaps.

Design
A scoping review with an additional cited reference search was conducted, guided by the Joanna Briggs Institute methodology.

Data sources
The search was undertaken in PubMed, Embase and Web of Science.

Eligibility criteria
Eligible articles mentioned VBHC or value with reference to the work of Porter or provided a definition of VBHC or value.

Data extraction and synthesis
Data were independently extracted using a data extraction form. Two independent reviewers double extracted data from 10% of the articles. Data of the remaining articles (90%) were extracted by one reviewer and checked by a second. The strategic agenda of Porter and Lee was used to categorise the included articles.

Results
The searches yielded a total of 27,931 articles, of which 1,242 were analysed. Most articles were published in North America. Most articles described an application of VBHC by measuring outcomes and costs (agenda item 2). The other agenda items were far less frequently described or implemented. Most of these articles were conceptual, meaning that nothing was actually changed or implemented.

Conclusion
The number of publications increased steadily after the introduction of VBHC in 2006. Almost one-fifth of the articles could not be categorised in one of the items of the strategic agenda, which may lead to the conclusion that the current strategic agenda could be extended. In addition, a practical roadmap or guideline to implement VBHC is still lacking. Future research could fill this gap by specifically studying the effectiveness of VBHC in day-to-day clinical practice.

Leggi
Agosto 2022

In Memoriam—Helen J. Cooke (1943–2021)

The gastroenterology community lost a remarkable scientist with the death of Helen Cooke, PhD, on December 27, 2021. Helen was 78 and passed peacefully in Ann Arbor, Michigan, due to complications of Parkinson Disease. Helen pioneered the field of neurobiology of the intestinal mucosa and in particular the enteric neural control of epithelial transport, including neuroimmune effects on epithelial function and the neural integration of secretion and motility.

Leggi
Agosto 2022

Global prevalence of non-tuberculous mycobacteria in adults with non-cystic fibrosis bronchiectasis 2006-2021: a systematic review and meta-analysis

Objective
To accurately estimate the global prevalence of non-tuberculous mycobacteria (NTM) in adults with non-cystic fibrosis (non-CF) bronchiectasis and to determine the proportion of NTM species and subspecies in clinical patients from 2006 to 2021.

Design
Systematic review and meta-analysis using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

Data sources
Medline, Embase, Cochrane Library and Web of Science were searched for articles published between 2006 and 2021.

Eligibility criteria for selecting studies
We included all the prospective or retrospective studies without language restrictions and all patients were adults (≥18 years of age) with non-CF bronchiectasis. The studies estimated the effect size of the prevalence of NTM with a sample size ≥40, and patients were registered in and after 2006.

Data extraction and synthesis
Two reviewers screened the titles, abstracts and full texts independently. Relevant information was extracted and curated into tables. Risk of bias was evaluated following the Cochrane Collaboration’s tool. Meta-analysis was performed with software R Statistics V.3.6.3 using random effect model with 95% CI. I2 index and Q statistics were calculated to assess the heterogeneity, and mixed-effects meta-regression analyses were performed to identify the sources of heterogeneity. The proportions of NTM subspecies were examined using Shapiro-Wilk normality test in R.

Results
Of all the 2014 studies yielded, 24 met the inclusion criteria. Of these, 14 were identified to be randomised controlled studies and included for an accurate estimation. The global prevalence of NTM in adults with non-CF bronchiectasis from 2006 to 2021 was estimated to be approximately 10%, with great variations primarily due to geographical location. Mycobacterium avium complex was the most common subspecies, followed by Mycobacterium simiae and Mycobacterium gordonae.

Conclusions
The prevalence of NTM in adults with non-CF bronchiectasis has been on the rise and the most common subspecies changed greatly in recent years. More cohort studies should be done in many countries and regions for future estimates.

PROSPERO registration number
CRD42020168473.

Leggi
Agosto 2022

Global prevalence, treatment and outcome of tuberculosis and COVID-19 coinfection: a systematic review and meta-analysis (from November 2019 to March 2021)

Introduction
The COVID-19 outbreak poses a significant threat to the patients with tuberculosis (TB). TB and COVID-19 (TB–COVID) coinfection means the disease caused by both Mycobacterium tuberculosis and SARS-CoV-2 infection. Currently, the prevalence status, treatment and outcomes of the coinfection are poorly characterised. We aimed to systematically review the evidence on this topic and provide comprehensive information to guide the control and treatment of TB–COVID coinfection.

Methods
An extensive screening was conducted using six electronic databases to search eligible studies from 1 November 2019 to 19 March 2021. Prevalence rate, treatment and outcomes of TB–COVID coinfection were extracted. Random-effects models were used to calculate mean fatality rates of coinfection with 95% CIs. The risks of bias were assessed with the Joanna Briggs Institute (JBI) Critical Appraisal Checklist for Study Reporting Prevalence Data and JBI Critical Appraisal Checklist for Case Report. A meta-analysis was conducted for subgroups on in-hospital fatality rate.

Results
Forty-two studies were included into the analysis (35 case reports and 7 retrospective cohort studies). Nineteen countries reported coinfected patients, including high and low TB prevalence countries. The only study revealing prevalence rate came from West Cape Province, South Africa (people aged above 20 years, 0.04% until 1 June 2020 and 0.06% until 9 June 2020). The treatment regimens for coinfected patients were highly heterogeneous. The mean overall and in-hospital fatality rates of coinfection were 13.9% (95% CI: 1.6% to 26.2%) and 17.5% (95% CI: 8.9% to 26.0%). The mean in-hospital fatality rates for high-income countries (Italy and Argentina) and low/middle-income countries (LMICs) (India, Philippines, South Africa) were 6.5% (95% CI: –0.8% to ~13.9%) and 22.5% (95% CI: 19.0% to ~26.0%).

Conclusion
TB–COVID coinfection is common globally, and the coinfected patients suffer from higher fatality risk than patients with normal COVID-19. Outcomes shared significant differences between high-income countries and LMICs.

PROSPERO registration number
CRD42021253660.

Leggi
Giugno 2022

SARS-CoV-2 infection and antibody seroprevalence in routine surveillance patients, healthcare workers and general population in Kita region, Mali: an observational study 2020-2021

Objective
To estimate the degree of SARS-CoV-2 transmission among healthcare workers (HCWs) and general population in Kita region of Mali.

Design
Routine surveillance in 12 health facilities, HCWs serosurvey in five health facilities and community serosurvey in 16 villages in or near Kita town, Mali.

Setting
Kita region, western Mali; local health centres around the central (regional) referral health centre.

Participants
Patients in routine surveillance, HCWs in local health centres and community members of all ages in populations associated with study health centres.

Main outcome measures
Seropositivity of ELISA test detecting SARS-CoV-2-specific total antibodies and real-time RT-PCR confirmed SARS-CoV-2 infection.

Results
From 2392 routine surveillance samples, 68 (2.8%, 95% CI: 2.2% to 3.6%) tested positive for SARS-CoV-2 by RT-PCR. The monthly positivity rate was 0% in June–August 2020 and gradually increased to 6% by December 2020 and 6.2% by January 2021, then declined to 5.5%, 3.3%, 3.6% and 0.8% in February, March, April and May 2021, respectively. From 397 serum samples collected from 113 HCWs, 175 (44.1%, 95% CI: 39.1% to 49.1%) were positive for SARS-CoV-2 antibodies. The monthly seroprevalence was around 10% from September to November 2020 and increased to over 40% from December 2020 to May 2021. For community serosurvey in December 2020, overall seroprevalence of SARS-CoV-2 antibodies was 27.7%. The highest age-stratified seroprevalence was observed in participants aged 60–69 years (45.5%, 95% CI: 32.3% to 58.6%). The lowest was in children aged 0–9 years (14.0%, 95% CI: 7.4% to 20.6%).

Conclusions
SARS-CoV-2 in rural Mali is much more widespread than assumed by national testing data and particularly in the older population and frontline HCWs. The observation is contrary to the widely expressed view, based on limited data, that COVID-19 infection rates were lower in 2020–2021 in West Africa than in other settings.

Leggi
Giugno 2022

Evaluating the controlled reopening of nightlife during the COVID-19 pandemic: a matched cohort study in Sitges, Spain, in May 2021 (Reobrim Sitges)

Objectives
To assess the impact of relaxing the state of alarm restrictions on SARS-CoV-2 infections at 14 days among people attending reopened nightclub venues.

Design
Matched cohort study with a paired control group (1:5 ratio).

Setting
Five small nightclubs with indoor areas and outdoor terraces, in a nightlife-restricted area in Sitges, Spain, on 20 May 2021. Wearing masks was mandatory, drinking was allowed and social distance was not required.

Participants
Volunteers were selected through a convenience sampling. To attend the event, participants were required to be older than 17 years, with a negative rapid antigen diagnostic test (Ag-RDT) on the same afternoon, without a positive reverse-transcription PCR (RT-PCR) or Ag-RDT and/or symptoms associated with COVID-19 in the previous 7 days, to not having knowingly been in close contact with someone infected in the previous 10 days and to not have knowingly had close contact with someone with a suspicion of COVID-19 in the previous 48 hours. A control group was paired by exact age, gender, residence municipality, socioeconomic index, previous SARS-CoV-2-confirmed infection and vaccination status, in a 1:5 ratio, from the primary care electronic health records.

Primary outcome
Evidence of infection at electronic health records by SARS-CoV-2 at 14-day follow-up.

Results
Among the 391 participants (median age 37 years; 44% (n=173) women), no positive SARS-CoV-2 cases were detected at 14 days, resulting in a cumulative incidence estimation of 0 (95% CI 0 to 943) per 100 000 inhabitants. In the control group, two cases with RT-PCR test were identified, resulting in a cumulative incidence of 102.30 (12.4 to 369) per 100 000 inhabitants.

Conclusions
Nightlife attendance under controlled conditions and with a requirement for a negative Ag-RDT was not associated with increased transmissibility of SARS-CoV-2 in a pandemic context of low infection rates. In such circumstances, secure opening of the nightlife sector was possible, under reduced capacity and controlled access by Ag-RDT, and environments where compliance with sanitary measures are maintainable.

Leggi
Giugno 2022

COVID-19 among staff and their family members of a healthcare research institution in Bangladesh between March 2020 and April 2021: a test-negative case-control study

Objective
To identify factors associated with COVID-19 positivity among staff and their family members of icddr,b, a health research institute located in Bangladesh.

Setting
Dhaka, Bangladesh.

Participants
A total of 4295 symptomatic people were tested for SARS-CoV-2 by reverse-transcription PCR between 19 March 2020 and 15 April 2021. Multivariable logistic regression was done to identify the factors associated with COVID-19 positivity by contrasting test positives with test negatives.

Result
Forty-three per cent of the participants were tested positive for SARS-CoV-2. The median age was high in positive cases (37 years vs 34 years). Among the positive cases, 97% were recovered, 2.1% had reinfections, 24 died and 41 were active cases as of 15 April 2021. Multivariable regression analysis showed that age more than 60 years (adjusted OR (aOR)=2.1, 95% CI 1.3 to 3.3; p

Leggi
Giugno 2022