Diabetes mellitus is a common chronic disease and a severe public health issue. The incidence trends for type 1 diabetes (TIDM) and type 2 diabetes (T2DM) have rarely been studied on a global scale. ...We aimed to determine the temporal and geographical trends of diabetes globally.
Data on diabetes mellitus, including incidence, prevalence from 1990 to 2017 were obtained from the 2017 Global Burden of Disease study. We calculated the estimated annual percentage changes (EAPCs) in age-standardized incidence rate (ASIR) of diabetes mellitus according to sex, region, and disease type.
The worldwide incident cases of diabetes mellitus has increased by 102.9% from 11,303,084 cases in 1990 to 22,935,630 cases in 2017 worldwide, while the ASIR increased from 234 /100,000 persons (95% UI, 219-249) to 285/100,000 persons (95% UI, 262-310) in this period EAPC = 0.87, 95% confidence interval (CI):0.79-0.96. The global ASIRs of T1DM and T2DM both demonstrated significant increase during 1990-2017, with EAPCs of 0.34 (95% CI,0.30-0.39) and 0.89 (95% CI,0.80-0.97), respectively. The ASIR trends also varied considerably by regions and countries. The increase in ASIR was greatest in high sociodemographic index regions (EAPC = 1.05, 95% CI:0.92-1.17) and lowest in low-SDI regions (EAPC = 0.79, 95% CI:0.71-0.88).
Both the number of incident cases and ASIR of diabetes mellitus increased significantly during 1990-2017 worldwide, but the temporal trends varied markedly across regions and countries.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Background
Data on the incidence, mortality, and other burden of oral cancer as well as their secular trends are necessary to provide policy‐makers with the information needed to allocate resources ...appropriately. The purpose of this study was to use the Global Burden of Disease (GBD) 2017 results to estimate the incidence, mortality, and disability‐adjusted life years (DALYs) for oral cancer from 1990 to 2017.
Methods
We collected detailed data on oral cancer from 1990 to 2017 from the GBD 2017. The global incidence, mortality, and DALYs attributable to oral cancer as well as the corresponding age‐standardized rates (ASRs) were calculated. The estimated annual percentage changes in the ASRs of incidence (ASRI) and mortality (ASRM) and age‐standardized DALYs of oral cancer were also calculated according to regions and countries to quantify the secular trends in these rates.
Results
We tracked the incidence, mortality, and DALYs of oral cancer in 195 countries/territories over 28 years. Globally, the incidence, mortality, and DALYs of oral cancer increased by about 1.0‐fold from 1990 to 2017. The ASRI of oral cancer showed a similar trend, increasing from 4.41 to 4.84 per 100,000 person‐years during the study period. The ASRM remained approximately stable at about 2.4 per 100,000 from 1990 to 2017, as did the age‐standardized DALYs, at about 64.0 per 100,000 person‐years. ASRI was highest in Pakistan (27.03/100,000, 95% CI = 22.13‐32.75/100,000), followed by Taiwan China, and lowest in Iraq (0.96/100,000, 95% CI = 0.86‐1.06/100,000). ASRM was highest in Pakistan (16.85/100,000, 95% CI = 13.92‐20.17/100,000) and lowest in Kuwait (0.51/100,000, 95% CI = 0.45‐0.58/100,000).
Conclusions
The ASRI of oral cancer has increased slightly worldwide, while the ASRM and age‐standardized DALY have remained stable. However, these characteristics vary between countries, suggesting that current prevention strategies should be reoriented, and much more targeted and specific strategies should be established in some countries to forestall the increase in oral cancer.
Background
To evaluate the prevalence and incidence of periodontitis and associated disability‐adjusted life years (DALYs) from 1990 to 2019.
Methods
We collected data on periodontitis between 1990 ...and 2019 from the Global Burden of Disease (GBD) 2019 Study. The global prevalence, incidence, and DALYs attributed to periodontitis were analyzed. The age‐standardized rate (ASR) and estimated annual percentage changes (EAPCs) were calculated to quantify the burden of the disease and temporal trends.
Results
The ASR of the prevalence, incidence, and DALYs increased worldwide from 1990 to 2019. In 2019, Western Sub‐Saharan Africa carried the heaviest burden of periodontitis, whereas the nation with the highest periodontitis burden was Gambia. The burden of periodontitis was negatively associated with the level of socioeconomic development. Although, the majority of periodontitis burden was observed among those aged 55–59 years, the incidence of periodontitis has shown an increasing trend among younger individuals.
Conclusion
Periodontitis continues to be a global public health problem. Current prevention and control strategies should be enhanced to prevent an increase in periodontitis.
An interdecadal shift in the variability and mean state of the tropical Pacific Ocean is investigated within the context of changes in El Niño–Southern Oscillation (ENSO). Compared with 1979–99, the ...interannual variability in the tropical Pacific was significantly weaker in 2000–11, and this shift can be seen by coherent changes in both the tropical atmosphere and ocean. For example, the equatorial thermocline tilt became steeper during 2000–11, which was consistent with positive (negative) sea surface temperature anomalies, increased (decreased) precipitation, and enhanced (suppressed) convection in the western (central and eastern) tropical Pacific, which reflected an intensification of the Walker circulation.
The combination of a steeper thermocline slope with stronger surface trade winds is proposed to have hampered the eastward migration of the warm water along the equatorial Pacific. As a consequence, the variability of the warm water volume was reduced and thus ENSO amplitude also decreased. Sensitivity experiments with the Zebiak–Cane model confirm the link between thermocline slope, wind stress, and the amplitude of ENSO.
Celotno besedilo
Dostopno za:
BFBNIB, DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Background
The aim of this study is to estimate the incidence, mortality, and disability‐adjusted life years (DALYs) of nasopharyngeal carcinoma from 1990 to 2017.
Methods
We collected detailed ...information on nasopharyngeal carcinoma from 1990 to 2017 based on data from Global Burden of Disease (GBD) study 2017. The global incidence, mortality, and DALYs attributable to nasopharyngeal carcinoma was reported, as well as the age‐standardized rates (ASRs).
Results
The ASR of nasopharyngeal carcinoma incidence decreased from 1.88 (95% UI: 1.76‐2.00) in 1990 to 1.35 (95% UI: 1.28‐1.42) in 2017. The ASR of mortality decreased from 1.19 (95% UI: 1.13‐1.25) in 1990 to 0.86 (95% UI: 0.82‐0.89) in 2017, while ASR‐DALYs decreased from 38.2 (95% UI: 35.9‐40.2) in 1990 to 25.4 (95% UI: 24.4‐26.5) in 2017.
Conclusions
The ASR of incidence, mortality, and DALYs of nasopharyngeal carcinoma have decreased slightly worldwide. East Asia carried the heaviest burden of nasopharyngeal carcinoma. The majority of nasopharyngeal carcinoma burden was observed in men, especially among male aged 55 to 69 years.
In this article, the interannual variability of upper-ocean temperature in the equatorial Indian Ocean (IO) and its basinwide connections are investigated using 58-yr (1958–2015) comprehensive ...monthly mean ocean reanalysis data. Three leading modes of an empirical orthogonal function (EOF) analysis dominate the variability of upper-ocean temperature in the equatorial IO over a wide range of time scales. A coherent interannual band within the first two EOF modes identifies an oscillation between the zonally tilting thermocline across the equatorial IO in its peak phases and basinwide displacement of the equatorial thermocline in its transitional phases. Consistent with the recharge oscillation paradigm, this oscillation is inherent in the equatorial IO with a quasi-periodicity around 15 months, in which the wind-induced off-equatorial Rossby waves near 5°–10°S provide the phase-transition mechanism. This intrinsic IO oscillation provides the biennial component in the observed IOD variations. The third leading mode shows a nonlinear long-term trend of the upper-ocean temperature, including the near-surface warming along the equatorial Indian Ocean, accompanied by cooling trend in the lower thermocline originating farther south. Such vertical contrary trends may lead to an enhanced stratification in the equatorial IO.
Celotno besedilo
Dostopno za:
BFBNIB, DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
We study the stability of the defocusing critical semilinear wave equation with locally distributed damping in an exterior domain. Under some assumptions on the Riemannian metric, the geometric ...multiplier technique and the compactness-uniqueness arguments were used to prove the unique continuation, the observability inequality respectively. Then the energy decay of the nonlinear system was obtained.
Seasonal predictability of the Primary East‐Asian Summer Circulation Patterns (PEASCPs), including the Western Pacific Subtropical High (WPSH), South Asian High (SAH), anomalous Philippine Sea ...AntiCyclone (PSAC) and East Asian Summer Monsoon (EASM), are investigated by using the hindcasts from the three operational climate prediction models, including BCC_CSM1.1(m), NCEP CFSv2 and ECMWF System 4. We show that prediction skills of the indices for representing these PEASCPs are sensitive to the initial calendar month of model prediction, and the ensemble mean of the three models provides relatively higher and more stable skills than forecasts from an individual model. In general, the indices of intensity and area have high prediction skills while the position indices have relatively low skills. Specifically, the skills of the WPSH intensity, area, SAH centre intensity, PSAC and EASM are higher, while the skills of the WPSH western boundary and SAH centre latitude are lower, and the skills of WPSH ridge line and SAH centre longitude are the lowest. Further analysis shows that the El Niño/Southern Oscillation (ENSO) has a large contribution to these prediction skills, and these patterns of atmospheric circulation anomalies in response to ENSO can be well captured by models, which is the major predictability source of the skills.
Scatter plots and linear regression lines of PCC skills for BCC_CSM1.1(m) (orange), NCEP CFSv2 (green), ECMWF System 4 (blue) models and the ensemble mean (red) initiated in May against the absolute value of former winter‐mean (December, January and February) Niño3.4 index: (a) geopotential height at 200 hPa over the South Asia region 10°N–50°N, 30°E–120°E, (b) geopotential height at 500 hPa over the western Pacific region 10°N–40°N, 90°E–180°E, (c) u–wind at 200 hPa over the South Asia region 10°N–50°N, 30°E–120°E, and (d) u‐wind at 850 hPa over the Southeast Asia region 10°N–20°N, 90°E–120°E
Highlights • This study may provide paramount evidence for surgeons to make treatment plan of OSCC. • All the included studies are RCTS. • This study’s sample size is probably the largest by now.
Abstract
Climate variability on subseasonal to interannual time scales has significant impacts on our economy, society, and Earth’s environment. Predictability for these time scales is largely due to ...the influence of the slowly varying climate anomalies in the oceans. The importance of the global oceans in governing climate variability demonstrates the need to monitor and forecast the global oceans in addition to El Niño–Southern Oscillation in the tropical Pacific. To meet this need, the Climate Prediction Center (CPC) of the National Centers for Environmental Prediction (NCEP) initiated real-time global ocean monitoring and a monthly briefing in 2007. The monitoring covers observations as well as forecasts for each ocean basin. In this paper, we introduce the monitoring and forecast products. CPC’s efforts bridge the gap between the ocean observing system and the delivery of the analyzed products to the community. We also discuss the challenges involved in ocean monitoring and forecasting, as well as the future directions for these efforts.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
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