Journal of Global Health最新文献

Background: This study aimed to explore the heterogeneity of community doctors based on their knowledge of dementia and the potential factors associated with their dementia literacy.

Methods: A total of 1288 community doctors completed the Alzheimer disease knowledge scale (ADKS) in a cross-sectional study conducted between December 2021 and January 2022. We used latent class analysis (LCA) to explore potential clusters based on responses to the ADKS. Multivariate multinomial logistic regression analysis was performed to evaluate the associations between potential risk factors and the knowledge of community doctors.

Results: Community doctors were divided into four clusters according to their knowledge structure (Akaike information criterion (AIC) = 35672.83, Bayesian information criterion (BIC) = 36307.63, adjusted BIC (aBIC) = 35916.91, entropy = 0.814): the severity-focused subgroup (n = 269), the physical issues-focused group (n = 370), the knowledge uncertainty group (n = 191), and the general-focused group (n = 458). Age, education level, type of practice, and professional title were associated with the knowledge structure of Alzheimer's disease (AD). In addition, the perception that patients seek care in community health centres for physical reasons and community doctors' failure to manage patients with recently identified cognitive impairment were associated with the structures of the ADKS among community doctors (P < 0.05).

Conclusions: There is heterogeneity in the level of AD knowledge among community doctors and their demographic characteristics, perceptions, and practices. Further efforts are needed to optimise the knowledge structure of dementia among community health care professionals.

Background: Social norms shape adolescent sexual and reproductive health behaviours contributing to contraceptive and pregnancy outcomes. No global research agendas exist to guide research on adolescent social norms shifting in low- and middle-income countries (LMICs). We developed a social norms research agenda to improve adolescent healthy timing and spacing of pregnancy in LMICs.

Methods: We adapted and applied the Child Health and Nutrition Research Initiative (CHNRI) method. A group of researchers guided the process, and consulted with diverse experts to develop a list of 21 research questions for global stakeholders to score via an online survey. Survey participants scored each research question according to four criteria (fills key gap, feasible, impactful, equitable). Research priority scores (RPS) and average expert agreement (AEA) statistics were calculated for each question and analysed overall and by stakeholder region and profession.

Results: We received 185 survey responses. Participants were, on average, 44 years old, 64% were women, 70% were from LMICs and 47% were implementers. The RPS ranged from 52 to 81% (74% median) and the AEA ranged from 49 to 70% (58% median). Nearly 70% of stakeholders gave the same score to each of the top five research questions. The top five research priorities focused on effective norm-shifting interventions (NSIs) strategies, processes and indicators to NSIs, and NSI adaptation and scale-up.

Conclusions: Using a collaborative and rigorous process with diverse representation from LMICs and implementers, we reached consensus on five priority research questions to guide future adolescent social norms research to improve healthy timing and spacing of pregnancy in LMICs.

Background: After the coronavirus disease 2019 (COVID-19) pandemic, the global community's increased focus on pandemic preparedness has driven efforts such as the Pandemic Treaty proposed by the World Health Organization (WHO) and the Pandemic Fund managed by the World Bank. While these initiatives will enhance countries' capabilities in pandemic preparedness, synergies could be achieved by exploring the intersections between universal health coverage (UHC) and global health security (GHS). This is particularly relevant for developing countries like Cambodia. As it transitions to higher income status and reduces its reliance on external funding, the synergistic development of UHC and GHS will help Cambodia maximise health investment and align with its population health goals. We aimed to identify synergies and dis-synergies between UHC and GHS and recommend implementations that the government can consider moving forward.

Methods: We conducted a rapid review of policy documents based on the World Health Organization (WHO) Health System Framework and undertook consultations with key stakeholders in Cambodia.

Results: Our findings show the synergies between the two agendas in Cambodia resulted from having a central coordinating authority through the Ministry of Health (MoH), an extensive primary care network, and intersecting human resources that drive both UHC and GHS. We also identified potential dis-synergies such as vertical programmes and funding sources, inadequate regulation and engagement of the private sector, and underutilisation of information and data. Recommendations include cross-consultations between departments within the MoH when developing policies in GHC or UHC, and training programmes to increase awareness of the synergies between UHC and GHS.

Conclusions: Our findings reinforce those of previous case studies in Bangladesh, Ethiopia, and Ghana, offering recommendations for building resilient health systems by integrating UHC and GHS.

Background: Traumatic brain injury (TBI) is a major global health problem that disproportionally affects low- and middle-income countries. The needs for patients with TBI therefore may differ between levels of national development. We aimed to describe differences in epidemiology and acute care provision of TBI between India and Europe.

Methods: We used data from two prospective observational registry studies - the Collaborative Indian NeuroTrauma Effectiveness Research in TBI (CINTER-TBI) and the Collaborative European NeuroTrauma Effectiveness Research in TBI (CENTER-TBI), which included TBI patients with an indication for brain CT-scan presenting to 65 centres across Europe and Israel and two trauma centres in India. We performed descriptive analyses of demographic, injury, and treatment characteristics and used random-effects logistic regression with covariate adjustment to examine the likelihood of acute neurosurgical interventions and in-hospital mortality.

Results: We included 22 849 patients from CENTER-TBI and 3904 from CINTER-TBI. The median age in Europe was 55 years (IQR = 32-76) compared to 27 years (IQR = 18-40) in India. The most common cause of TBI in Europe were falls (n = 12150 (53%), while traffic incidents predominated in India (n = 2130 (55%)). The proportion of patients with severe TBI was higher in India (n = 867 (22%)) than in Europe (n = 1661 (7%). Professional pre-hospital care involving ambulance service was utilised by three-fourths (n = 17203 (75%)) of European and less than a one-tenth (n = 224 (6%)) of Indian patients in our sample. Patients with severe TBI were more likely to undergo surgical contusion/haematoma evacuation in India compared to Europe (OR = 2.0; 95% CI = 1.7-2.5) and Indian patients had higher odds of undergoing intracranial pressure monitor placement (OR = 2.3; 95% CI = 2.0-2.7). A primary decompressive craniectomy was likewise more often performed in the Indian cohort (OR = 5.1; 95% CI = 3.5-7.5). Discharge destinations in Europe included rehabilitation centres (n = 1261 (6%)) or nursing homes (n = 1208 (5%)), which was rarely the case in India (n = 13 (0%) and n = 9 (0%), respectively).

Conclusions: Substantial disparities between India and Europe exist along the neurotrauma care chain, with both systems being likely to face unique features and challenges in the future.

Background: This study aims to estimate global incidence and assess risk factors for glaucoma subtypes.

Methods: The literature search was performed in three English (PubMed, Embase, MEDLINE) and three Chinese (China National Knowledge Infrastructure, Wanfang, China Science and Technology Journal Database) databases to identify prospective studies on glaucoma incidence between 1 January 1990 and 29 November 2022. We used a multilevel mixed-effects meta-regression to estimate the age- and sex-specific incidence rate of primary open-angle glaucoma (POAG). The global and regional incidence rate of POAG in 2022 were respectively estimated. The annual cumulative incidence (ACI) of POAG and primary angle-closure glaucoma (PACG), and risk factors for POAG were pooled using a random-effects meta-analysis, respectively. The heterogeneity of the included articles was tested using the Q statistic and measured by I² index. Publication bias was detected by funnel plots, Egger's regression test, and Begg's rank correlation test.

Results: A total of 9050 articles were identified in literature search, and 50 articles provided incidence data of glaucoma subtypes. In 2022, the global incidence rate of POAG was 23.46 (95% confidence interval (CI) = 15.68-32.91) per 10 000 person-years among 40-79 years. An increase from 5.51 (95% CI = 1.63-11.12) per 10 000 person-years in 40-44 years to 64.36 (95% CI = 49.82-80.70) per 10 000 person-years in 75-79 years was noted between the year 1990 and 2019. Across sociodemographic index (SDI) and World Health Organization (WHO) regions, the incidence rate was the highest in low SDI region and Africa, respectively. The pooled ACI of POAG was 0.21% (95% CI = 0.13%-0.30%). Six risk factors for POAG were identified, including intraocular pressure (IOP) treatment (meta-odds ratio (OR) = 3.69; 95% CI = 2.64-5.15), a family history of glaucoma (meta-OR = 2.49; 95% CI = 1.92-3.24), myopia (meta-OR = 2.08; 95% CI = 1.59-2.70), elevated IOP (meta-OR = 1.13; 95% CI = 1.11-1.15), advanced age (meta-OR = 1.07; 95% CI = 1.05-1.08), male (female: meta-OR = 0.76; 95% CI = 0.66-0.88). The pooled ACI of PACG was 0.05% (95% CI = 0.00%-0.16%).

Conclusions: Significant disparities existed in incidence rates for glaucoma across geographic regions and age groups. Further research is needed to understand which risk factors drive glaucoma incidence in different socioeconomic strata for tailored health policy on preventing glaucoma.

Registration: This study is registered with PROSPERO (number CRD42023434203).

Background: Antivirals are effective in reducing hospitalisation and death in mild-to-moderate coronavirus 2019 (COVID-19) patients. We estimated the antiviral uptake of nirmatrelvir/ritonavir and molnupiravir in adult patients with a syndrome coronavirus 2 (SARS-CoV-2) infection during the Emergency Use Authorization (EUA) period in Taiwan.

Methods: A retrospective cohort study was conducted in Taiwan between January 2022 and December 2022. Patients aged ≥18 years with a SARS-CoV-2 infection were included from the Taipei Medical University Clinical Research Database (TMUCRD) and stratified in three risk groups according to World Health Organization criteria.

Results: In total, 96 398 COVID-19 patients (mean age 46.7 ± 17.7 years, 45.8% male) were included. Of these patients 69.8% were classified as low risk, 29.8% as moderate risk, and 0.4% as high risk for progression to severe COVID-19. Nirmatrelvir/ritonavir was prescribed in 5.1% of the COVID-19 patients (low risk = 1.0%, moderate risk = 14.3%, high risk = 17.6%). Molnupiravir was prescribed in 1.9% of the COVID-19 patients (low risk = 0.1%, moderate risk = 5.8%, high risk = 6.9%).

Conclusions: Nirmatrelvir/ritonavir and molnupiravir were poorly used in the treatment of adult COVID-19 patients in Taiwan during the pandemic in 2022, especially in moderate-to-high risk groups for progression to severe COVID-19.

Background: This study aimed to assess the associations of two common types of preserved vegetables in China, salted and sour pickled vegetables, with the risk of gastrointestinal tract (GI) cancers, including oesophageal cancer, stomach cancer, and colorectal cancer.

Methods: The China Kadoorie Biobank collected intake frequency of preserved vegetables among 510 143 adults without self-reported cancer during 2004-2008, and followed up till 31 December 2018. The second resurvey further collected intake frequencies of salted and sour pickled vegetables, which classified the 10 study areas into three types of regions, including the regions never/rarely consuming preserved vegetables (number of participants at baseline = 201 844), mainly consuming salted vegetables (n = 202 927), and mainly consuming sour pickled vegetables (n = 105 372). Cox proportional models were respectively performed to calculate hazard ratios (HRs) for GI cancers with preserved vegetables in the latter two types of regions among baseline participants.

Results: In the regions mainly consuming salted vegetables, preserved vegetable consumption was positively associated with stomach cancer (HR = 1.17; 95% confidence interval = 1.00-1.37; P for trend = 0.039). In the regions mainly consuming sour pickled vegetables, a dose-response positive relationship was observed between preserved vegetable consumption and the risk of oesophageal cancer (P for trend = 0.013), with adjusted HR of 1.35 (95% CI 1.02-1.80) for those who daily consumed compared with never consumed.

Conclusions: Our findings suggest that different types of preserved vegetables might have different effects on GI cancers, and limiting preserved vegetable consumption might be protective against developing GI cancers.

Background: With the increased availability of licensed vaccines for respiratory viruses such as severe acute respiratory syndrome coronavirus 2, respiratory syncytial virus (RSV), and influenza virus, a better understanding of the viral aetiology of severe acute respiratory infections (SARI) among children could help in optimising the use of these vaccines. We conducted a study among children aged <5 years hospitalised with SARI at a tertiary care children's hospital in north India and tested for common respiratory pathogens.

Methods: We randomly enrolled eligible SARI cases aged <5 years from August 2013 to July 2015. SARI cases were defined as either <7-day history of fever with cough or in children aged eight days to three months, a physician diagnosis of acute lower respiratory infection requiring hospitalisation. We also enrolled an age-group matched control without any acute illness in a 2:1 ratio from the outpatient clinic within 24 hours of case enrolment. Nasopharyngeal and/or oropharyngeal swabs were collected and tested using TaqMan Array Cards, a real-time reverse transcription polymerase chain reaction-based multi-pathogen testing platform for selected respiratory viruses among the enrolled cases and controls. We compared the prevalence of each pathogen among cases and controls using the χ² (χ²) or Fisher exact test (P < 0.05). We used logistic regression to estimate adjusted odds ratios (aORs) which were then used to calculate aetiologic fractions (EFs).

Results: We enrolled 840 cases and 419 outpatient controls. Almost half of the individuals in the whole sample were aged <6 months (n = 521, 41.4%). Females made up 33.7% of cases and 37.2% of controls. Viral detections were more common among cases (69%, 95% confidence interval (CI) = 66, 73) compared to controls (33%; 95% CI = 29, 38) (P < 0.01). RSV (n = 257, 31%; 95% CI = 28, 34%) was the most common virus detected among cases. Influenza A was detected among 24 (3%; 95% CI = 2, 4%), and influenza B among 5 (1%; 95% CI = 0, 1%) cases. The association between the virus and SARI was strongest for RSV (aOR = 23; 95% CI = 12, 47; EF = 96%). Antivirals were administered to 1% of SARI cases while 78% received antibiotics.

Conclusions: Using a multi-pathogen molecular detection method, we detected respiratory viruses among more than two-thirds of children aged <5 years admitted with SARI in the Delhi tertiary care children's hospital. The guidelines for preventing and managing SARI cases among children could be optimised further with the improved availability of antivirals and vaccines.

Background: Maternal mortality remains high in sub-Saharan Africa, with little progress made in the last 20 years. The provision of emergency obstetric care has been shown to have the greatest effect in reducing maternal mortality in countries with high maternal mortality ratios, especially when paired with an emergency transport service. Integrate Health has partnered with the Togolese Ministry of Health to improve maternal and child health via the integration of a free ambulance service into a pre-existing primary care model. In this study, we aim to describe the implementation of this service and assess its effectiveness on access to emergency obstetric care by estimating its coverage of women with obstetric complications.

Methods: This is a retrospective cross-sectional study using routinely collected data from ambulance logbooks. The study was restricted to pregnant or postpartum woman in four districts of Northern Togo. For each patient transported, the variables collected included date of transport, destination, patient information, kilometres travelled, and reason for transport. Complicated obstetric cases were defined by reason for transport and included maternal haemorrhage, complicated birth, and signs of danger. Estimated coverage of major obstetric complications was calculated using population estimates per fiscal year, the birth rate (3.7%) in Togo, and the assumption that 15% of pregnant women will have a complication.

Results: Between July 2020 and June 2023, there were 2926 maternal patients transported by the ambulance service. Of these, 1030 were reported as complicated obstetric cases. Estimated coverage of obstetric complications increased over time and as the programme expanded, from 18% in 2020 to 35.7% in 2021, and 66.5% in 2022.

Conclusions: Our findings demonstrate that implementing a rural ambulance service in a region with historically high maternal mortality rates may improve maternal access to emergency obstetric care. The success of our ambulance service was likely due to the fact that it is free, available 24/7, easily accessible, operated by trained staff and community members, and integrated into a pre-existing primary care programme with well-resourced health care centres.

Background: Although numerous studies have discussed about the impact of air pollution on cognitive function, a consensus has yet to be reached, necessitating further exploration of their relationship. The aim of this study is to reveal the effects of major air pollutants on cognitive function in Chinese middle-aged and older adults, while considering the lagged effects of pollution.

Methods: Panel data were constructed by integrating the air pollutants concentration (particulate matter diameter ≤1 µm (μm) (PM₁), PM_2.5, PM₁₀, nitrogen dioxide (NO₂), and ozone (O₃)) among 28 provinces in China and the personal characteristics from China Health and Retirement Longitudinal Study participants during the period of 2011-2015. To explore the effects of single pollutants and their interactions on cognitive function, panel linear regression using ordinary least squares method was employed, and first-order lag effects (two-year interval) of air pollution were introduced into the models.

Results: Our study revealed that, after adjusting for confounding factors, higher levels of particulate matter (PM₁, coefficient (Coef.) = -0.093, P = 0.001; PM_2.5, Coef. = -0.051, P = 0.001; PM₁₀, Coef. = -0.030, P = 0.001) and NO₂ (Coef. = -0.094, P = 0.006) were associated with lower cognitive function scores among the participants. Moreover, the interaction between the five major pollutants exhibited a negative effect on cognitive function(Coef. = -2.89, P = 0.004).

Conclusions: PM₁, PM_2.5, PM₁₀ have detrimental effects on the cognitive function of middle-aged and elderly adults in China, where increasing particle diameter correlates with a less negative impacts, providing theoretical underpinnings for the formulation of environmental protection policies.