{"title":"Long COVID facts and findings: a large-scale online survey in 74,075 Chinese participants","authors":"","doi":"10.1016/j.lanwpc.2024.101218","DOIUrl":"10.1016/j.lanwpc.2024.101218","url":null,"abstract":"<div><h3>Background</h3><div>Research on long COVID in China is limited, particularly in terms of large-sample epidemiological data and the effects of recent SARS-CoV-2 sub-variants. China provides an ideal study environment owing to its large infection base, high vaccine coverage, and stringent pre-pandemic measures.</div></div><div><h3>Methods</h3><div>This retrospective study used an online questionnaire to investigate SARS-CoV-2 infection status and long COVID symptoms among 74,075 Chinese residents over one year. The relationships between baseline characteristics, vaccination status, pathogenic infection, and long COVID were analyzed using multinomial logistic regression, and propensity matching.</div></div><div><h3>Findings</h3><div>Analysis of 68,200 valid responses revealed that the most frequent long COVID symptoms include fatigue (30.53%), memory decline (27.93%), decreased exercise ability (18.29%), and brain fog (16.87%). These symptoms were less prevalent among those infected only once: fatigue (24.85%), memory decline (18.11%), and decreased exercise ability (12.52%), etc. Women were more likely to experience long COVID, with symptoms varying by age group, except for sleep disorders and muscle/joint pain, which were more common in older individuals. Northern China exhibits a higher prevalence of long COVID, potentially linked to temperature gradients. Risk factors included underlying diseases, alcohol consumption, smoking, and the severity of acute infection (OR > 1, FDR < 0.05). Reinfection was associated with milder symptoms but led to a higher incidence and severity of long COVID (OR > 1, FDR < 0.05). Vaccination, particularly multiple boosters, significantly reduced long-term symptoms by 30%–70% (OR < 1, FDR < 0.05). COVID-19 participants also self-reported more bacterial, influenza and mycoplasma infections, and 8%–10% of patients felt SARS-CoV-2-induced chronic diseases.</div></div><div><h3>Interpretation</h3><div>This survey provides valuable insights into long COVID situation among Chinese residents, with 10%–30% (including repeated infection) reporting symptoms. Monitoring at-risk individuals based on identified risk factors is essential for public health efforts.</div></div><div><h3>Funding</h3><div>This study was funded by the <span>China Postdoctoral Science Foundation</span> (2022M723344, 2023M743729), <span>Guangdong Basic and Applied Basic Research Foundation</span> (2023A1515110489), and the <span>Bill & Melinda Gates Foundation</span> (INV-027420).</div></div>","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Association of long-term exposure to ozone with cardiovascular mortality and its metabolic mediators: evidence from a nationwide, population-based, prospective cohort study","authors":"","doi":"10.1016/j.lanwpc.2024.101222","DOIUrl":"10.1016/j.lanwpc.2024.101222","url":null,"abstract":"<div><h3>Background</h3><div>Previous studies about chronic effects of ozone (O<sub>3</sub>) on cardiovascular mortality are scarce and inconclusive. We aimed to investigate the association between cardiovascular mortality and a broad range of long-term O<sub>3</sub> exposure levels.</div></div><div><h3>Methods</h3><div>This analysis included 3,206,871 participants aged 35–75 years enrolled in the ChinaHEART study. Participants were recruited from the 31 provinces of the Chinese mainland between January 2015 and December 2020. The five-year average O<sub>3</sub> concentrations before baseline visits were calculated to represent long-term exposure.</div></div><div><h3>Findings</h3><div>Over a median follow-up period of 4.7 (interquartile range: 3.7−6.2) years, 35,553 (1.1%) participants died from cardiovascular diseases (CVD). Following multivariable adjustment, nonlinear relationships were identified between O<sub>3</sub> concentrations and CVD and ischemic heart disease (IHD) mortality, with inflection points at 85.44 and 88.15 μg/m<sup>3</sup>, respectively. Above these points, a 10.0 μg/m<sup>3</sup> increase in the O<sub>3</sub> level was associated with a 13.9% (hazard ratio [HR]: 1.139, 95% confidence interval [CI]: 1.096−1.184) and 25.0% (HR: 1.250, 95% CI: 1.151−1.357) greater risk of CVD and IHD mortality, respectively. Conversely, O<sub>3</sub> exposure exhibited a linear relationship with ischemic stroke mortality. Moreover, the metabolic factors explained more than half of the association between O<sub>3</sub> exposure and CVD mortality.</div></div><div><h3>Interpretation</h3><div>Substantial influences of long-term O<sub>3</sub> exposure on CVD mortality were identified, with notable mediation proportions attributed to metabolic factors. These findings could facilitate the air quality standard revisions and risk reduction strategy making in the future.</div></div><div><h3>Funding</h3><div>This study was supported by the <span>CAMS</span> Innovation Fund for Medical Science (2021-1-I2M-011), the <span>CAMS</span> Innovation Fund for Medical Science (CIFMS, 2022-I2M-C&T-A-010), the <span>National High Level Hospital Clinical Research</span> Funding (2022-GSP-GG-4), the <span>Ministry of Finance of China</span> and <span>National Health Commission</span> of China, the 111 Project from the <span>Ministry of Education of China</span> (B16005).</div></div>","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Non-optimal temperature-attributable mortality and morbidity burden by cause, age and sex under climate and population change scenarios: a nationwide modelling study in Japan","authors":"","doi":"10.1016/j.lanwpc.2024.101214","DOIUrl":"10.1016/j.lanwpc.2024.101214","url":null,"abstract":"<div><h3>Background</h3><div>Future temperature effects on mortality and morbidity may differ. However, studies comparing projected future temperature-attributable mortality and morbidity in the same setting are limited. Moreover, these studies did not consider future population change, human adaptation, and the variations in subpopulation susceptibility. Thus, we simultaneously projected the temperature-related mortality and morbidity by cause, age, and sex under population change, and human adaptation scenarios in Japan, a super-ageing society.</div></div><div><h3>Methods</h3><div>We used daily mean temperatures, mortality, and emergency ambulance dispatch (a sensitive indicator for morbidity) in 47 prefectures of Japan from 2015 to 2019 as the reference for future projections. Future mortality and morbidity were generated at prefecture level using four shared socioeconomic pathway (SSP) scenarios considering population changes. We calculated future temperature-related mortality and morbidity by combining baseline values with future temperatures and existing temperature risk functions by cause (all-cause, circulatory, respiratory), age (<65 years, ≥65 years), and sex under various climate change and SSP scenarios (SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5). Full human adaptation was simulated based on empirical evidence using a fixed percentile of minimum mortality or morbidity temperature (MMT), while no adaptation was simulated with a fixed absolute MMT.</div></div><div><h3>Findings</h3><div>A future temporal decline in mortality burden attributable to non-optimal temperatures was observed, driven by greater cold-related deaths than heat-related deaths. In contrast, temperature-related morbidity increased over time, which was primarily driven by heat. In the 2050s and 2090s, under a moderate scenario, there are 83.69 (95% empirical confidence interval [eCI] 38.32–124.97) and 77.31 (95% eCI 36.84–114.47) all-cause deaths per 100,000 population, while there are 345.07 (95% eCI 258.31–438.66) and 379.62 (95% eCI 271.45–509.05) all-cause morbidity associated with non-optimal temperatures. These trends were largely consistent across causes, age, and sex groups. Future heat-attributable health burden is projected to increase substantially, with spatiotemporal variations and is particularly pronounced among individuals ≥65 y and males. Full human adaptation could yield a decreasing temperature-attributable mortality and morbidity in line with a decreasing population.</div></div><div><h3>Interpretation</h3><div>Our findings could support the development of targeted mitigation and adaptation strategies to address future heat-related impacts effectively. This includes improved healthcare allocations for ambulance dispatch and hospital preventive measures during heat periods, particularly custom-tailored to address specific health outcomes and vulnerable subpopulations.</div></div><div><h3>Funding</h3><div><span>Japan Science and Technology Agency</","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of heatwaves on mortality of Alzheimer's disease and other dementias among elderly aged 60 years and above in China, 2013–2020: a population-based study","authors":"","doi":"10.1016/j.lanwpc.2024.101217","DOIUrl":"10.1016/j.lanwpc.2024.101217","url":null,"abstract":"<div><h3>Background</h3><div>China has the largest number of dementia patients in the world, posing a significant health and economic burden. Alzheimer's disease (AD) and other dementia patients face a higher risk of mortality during heatwaves, but relevant studies on this topic have been limited so far.</div></div><div><h3>Methods</h3><div>The study extracted data from the China Cause of Death Reporting System (CDRS) on deaths of AD and other dementia patients aged 60 years and above between 2013 and 2020. Using an individual-level, time-stratified, and case-crossover study design, the effects of heatwaves across nine scenarios on dementia mortality were quantified by conditional logistic regression combined with distributed lag non-linear model (DLNM). Additionally, the attributable fractions (AFs) of deaths due to heatwaves were calculated.</div></div><div><h3>Findings</h3><div>A total of 399,036 death cases were reported caused by AD and other dementias during the study period. It was found that heatwaves significantly increased the risk of death among people with AD and other dementias. As the intensities and durations of the heatwaves increased, the lag0-7 cumulative odds ratios (CORs) of mortality increased progressively from 1.140 (95% CI: 1.118, 1.163) under the mildest heatwave to 1.459 (95% CI: 1.403, 1.518) under the most severe one, across nine heatwave scenarios examined. Additionally, under specific heatwave scenarios, sex and regions modified the mortality risk, but no significant age differences were observed. The AFs of AD and other dementia mortality due to milder heatwaves were lower compared to more severe heatwaves, ranging from 12.281% (95% CI: 10.555%, 14.015%) to 31.460% (95% CI: 28.724%, 34.124%).</div></div><div><h3>Interpretation</h3><div>The study provided critical insights into the substantial increase in heatwave-related mortality among AD and other dementia patients during and after heatwave events. The results from our quantitative analyses will provide needed scientific evidence for policymakers and practitioners to develop relevant policies and guidelines to protect the health and well-beings of vulnerable populations in future in the context of both seasonal changes and long-term climate change.</div></div><div><h3>Funding</h3><div>This work was supported by the <span>Project of Prevention and Intervention on Major Diseases for Elderly in China</span>, NCNCD [00240201307], the <span>National Key Research and Development Program of China</span> [2022YFC2602301, 2023YFC2308703] and the <span>Science and Technology Fundamental Resources Investigation Program of China</span> [2017FY101201].</div></div>","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Informing HPV vaccine pricing for government-funded vaccination in mainland China: a modelling study","authors":"","doi":"10.1016/j.lanwpc.2024.101209","DOIUrl":"10.1016/j.lanwpc.2024.101209","url":null,"abstract":"<div><h3>Background</h3><div>The high price of HPV vaccines remains a significant barrier to vaccine accessibility in China, hindering the country’s efforts toward cervical cancer elimination and exacerbating health inequity. We aimed to inform HPV vaccine price negotiations by identifying threshold prices that ensure that a government-funded HPV vaccination programme is cost-effective or cost-saving.</div></div><div><h3>Methods</h3><div>We used a previously validated transmission model to estimate the health and economic impact of HPV vaccination over a 100-year time horizon from a healthcare payer perspective. Threshold analysis was conducted considering different settings (national, rural, and urban), cervical cancer screening scenarios (cytology-based or HPV DNA-based, with different paces of scale-up), vaccine types (four types available in China), vaccine schedules (two-dose or one-dose), mode of vaccination (routine vaccination with or without later switching to high-valency vaccines), willingness-to-pay thresholds, and decision-making criteria (cost-effective or cost-saving). Furthermore, we examined the budget impact of introducing nationwide vaccination at the identified threshold prices.</div></div><div><h3>Findings</h3><div>Using the current market price, national routine HPV vaccination with any currently available vaccine is unlikely cost-effective. Under a two-dose schedule, the prices of the four available HPV vaccine types cannot exceed $26–$36 per dose (44.1%–80.2% reduction from current market prices) depending on vaccine type to ensure the cost-effectiveness of the national programme. Adopting vaccination at threshold prices would require an annual increase of 72.18%–96.95% of the total annual National Immunization Programme (NIP) budget in China. A cost-saving routine vaccination programme requires vaccine prices of $5–$10 per dose (depending on vaccine type), producing a 21.38%–34.23% increase in the annual NIP budget. Adding the second dose is unlikely to be cost-effective compared to a one-dose schedule, with the threshold price approaching or even falling below zero. Rural pilot vaccination programmes require lower threshold prices compared with a national programme.</div></div><div><h3>Interpretation</h3><div>Our study could inform vaccine price negotiation and thus facilitate nationwide scale-up of current HPV vaccination pilot programmes in China. The evidence may potentially be valuable to other countries facing HPV introduction barriers due to high costs. This approach may also be adapted for other contexts that involve the introduction of a pricy vaccine.</div></div><div><h3>Funding</h3><div><span>CAMS Innovation Fund for Medical Sciences</span> (CIFMS); <span>Bill & Melinda Gates Foundation</span>.</div></div>","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GLP-1 receptor agonists: a magic bullet for obesity?","authors":"","doi":"10.1016/j.lanwpc.2024.101233","DOIUrl":"10.1016/j.lanwpc.2024.101233","url":null,"abstract":"","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Challenges introduced by Japan's drug pricing policy","authors":"","doi":"10.1016/j.lanwpc.2024.101212","DOIUrl":"10.1016/j.lanwpc.2024.101212","url":null,"abstract":"","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Corrigendum to “Current and future burden of ross river virus infection attributable to increasing temperature in Australia: a population-based study” the Lancet Regional Health–Western Pacific 2024;48: 101124","authors":"","doi":"10.1016/j.lanwpc.2024.101224","DOIUrl":"10.1016/j.lanwpc.2024.101224","url":null,"abstract":"","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Radiotherapy services in the Philippines: exploring geographical barriers to improve access to care","authors":"","doi":"10.1016/j.lanwpc.2024.101219","DOIUrl":"10.1016/j.lanwpc.2024.101219","url":null,"abstract":"","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Integration of customised LLM for discharge summary generation in real-world clinical settings: a pilot study on RUSSELL GPT","authors":"","doi":"10.1016/j.lanwpc.2024.101211","DOIUrl":"10.1016/j.lanwpc.2024.101211","url":null,"abstract":"","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":null,"pages":null},"PeriodicalIF":7.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}