National Trends In Prevalence Research Articles

A population analysis of delayed ejaculation using a claims database: characteristics and national trends in prevalence, incidence, and pharmacotherapy.

We investigated the prevalence, incidence, and rates of pharmacological treatment of delayed ejaculation using the TriNetX Diamond Network. We included all men evaluated in the inpatient, outpatient, and emergency settings. Prevalence was determined by comparing the number of men diagnosed with delayed ejaculation to the entire population. Incidence was determined by comparing the number of men diagnosed with delayed ejaculation without a prior diagnosis to the overall population without a prior diagnosis. Rates of pharmacologic treatment were calculated by comparing the number of men who received a prescription to the total number of men with delayed ejaculation. Trends in prevalence and incidence were compared using six-month intervals, while trends in pharmacologic treatment were compared using one-year intervals. A total of 23,164 adult males were diagnosed with delayed ejaculation from 2013 to 2019. During the final six-month interval (July to December 2019), 2,747 of 16,496,744 men received a delayed ejaculation diagnosis, and 1,375 of 16,488,270 men without a prior diagnosis were diagnosed with delayed ejaculation. In 2019, only 916 of 4,733 (19.4%) men diagnosed with delayed ejaculation received any prescription, with the most common being testosterone (9.5%), bupropion (6.6%), and buspirone (2.3%). Prevalence, incidence and pharmacologic treatment all had increasing trends.

A population analysis of delayed ejaculation using a claims database: characteristics and national trends in prevalence, incidence, and pharmacotherapy.

We investigated the prevalence, incidence, and rates of pharmacological treatment of delayed ejaculation using the TriNetX Diamond Network. We included all men evaluated in the inpatient, outpatient, and emergency settings. Prevalence was determined by comparing the number of men diagnosed with delayed ejaculation to the entire population. Incidence was determined by comparing the number of men diagnosed with delayed ejaculation without a prior diagnosis to the overall population without a prior diagnosis. Rates of pharmacologic treatment were calculated by comparing the number of men who received a prescription to the total number of men with delayed ejaculation. Trends in prevalence and incidence were compared using six-month intervals, while trends in pharmacologic treatment were compared using one-year intervals. A total of 23,164 adult males were diagnosed with delayed ejaculation from 2013 to 2019. During the final six-month interval (July to December 2019), 2,747 of 16,496,744 men received a delayed ejaculation diagnosis, and 1,375 of 16,488,270 men without a prior diagnosis were diagnosed with delayed ejaculation. In 2019, only 916 of 4,733 (19.4%) men diagnosed with delayed ejaculation received any prescription, with the most common being testosterone (9.5%), bupropion (6.6%), and buspirone (2.3%). Prevalence, incidence and pharmacologic treatment all had increasing trends.

Trends and risk factors of diabetes and prediabetes in US adolescents, 1999–2020

AimsTo assess the national trends in prevalence of diabetes and prediabetes and their major risk factors among adolescents in the US. MethodsWe analyzed data on 6,936 adolescents aged 12 to 19 years from the National Health and Nutrition Examination Surveys (NHANES) between 1999 and 2020. Diabetes was defined by self-reported physician-diagnosis (diagnosed) and by fasting plasma glucose and HbA1c levels (undiagnosed). Prediabetes was identified by fasting plasma glucose and HbA1c levels. Logistic regression was performed to estimate the associations of major risk factors with diabetes and prediabetes. ResultsThe prevalence of prediabetes in adolescents increased from 11.5% in 1999–2002 to 36.3% in 2015–2020. The prevalence of diabetes increased from 0.82% (0.62% of diagnosed and 0.20% of undiagnosed) in 1999–2002 to 1.14% (0.76% of diagnosed and 0.38% of undiagnosed) in 2015–2020, but the increase was not statistically significant (P value = 0.69). Obesity was significantly associated with higher odds of diabetes and prediabetes while boys and Mexican Americans had a significantly higher risk of prediabetes than their counterparts. ConclusionsThe prevalence of prediabetes among adolescents in the US has more than tripled from 1999 to 2020. Obese adolescents are at the greatest risk for diabetes and prediabetes.

National Trends in Prevalence of Depression in Men and Women with Chronic Obstructive Pulmonary Disease Hospitalized in Spain, 2016-2020.

(1) Background: To describe trends in the prevalence of depression in men and women with COPD hospitalized in Spain (2016-2020). (2) Methods: We used a nationwide discharge database to select all patients ≥35 years with COPD. (3) Results: The prevalence of depression was 3.54-times higher in women with COPD than in men (OR 3.54; 95%CI 3.48-3.6). It decreased significantly between 2016 and 2020, although the reduction was only significant in women (12.27% in 2016 vs. 10.56% in 2020). Older age, comorbidity and the most recent years of hospital admission were associated with lower prevalence of depression in both men and women, while obesity, obstructive sleep apnea (OSA) and use of oxygen prior to admission were risk factors. In-hospital mortality (IHM) increased significantly over time. Older age, comorbidity, the use of oxygen prior to admission and having been hospitalized in 2020 increased the risk of IHM. Female sex was associated with a lower IHM in patients with depression and COPD. (4) Conclusions: The prevalence of depression has decreased over time in women with COPD while it has not changed significantly in men with this disease. IHM increased over time both in men and women with COPD and depression, with higher prevalence in the former.

NATIONAL TRENDS IN THE PREVALENCE OF DISEASES AMONG RESIDENTS OF UKRAINE AND KHARKIV REGION

Introduction: the relevance of determining national trends in prevalence of diseases among the adult population in Ukraine is high, as it solves several important medical, social and economic problems of society.
 The aim: to determine national trends in prevalence of diseases among the adult population in Ukraine and Kharkiv region.
 Materials and methods: data from official sources of statistical information of Ukraine (State Institution "Center for Medical Statistics of the Ministry of Health of Ukraine") were used to determine national trends in prevalence of diseases among the adult population in Ukraine and Kharkiv region. A systematic analysis and generalization of the obtained data was performed and trends in prevalence of diseases among the adult population in Ukraine and Kharkiv region.
 Results: a decrease in the prevalence of diseases among the adult population of Ukraine over the 2010-2017 years with trends of -18.3% (general morbidity) and -25.9% (diseases detected for the first time in life) has been determined. Over the 2010-2019 years, the dynamics of reducing the prevalence of diseases and morbidity of adult residents of the Kharkiv region with trends of -12.6% and -23.0% has been established. For 2018-2019, progressive trends in reducing the prevalence of most diseases were noted, except for eating disorders and metabolic disorders (trends of increase, respectively, + 2.2% and + 2.9%) and symptoms, signs and deviations from the norm, which were found in clinical and laboratory studies (trends + 2.8% and + 3.5%) and neoplasms (only in terms of 100 thousand people) — + 0.1%.
 Discussion: the obtained results of the general dynamics of trends in the prevalence of diseases of the population in Ukraine completely coincide with the data of other world studies.
 Conclusions: there was a significant decrease in the spread of prevalence of diseases and morbidity among the mature population of Ukraine and the Kharkiv region.

National trends in prevalence, awareness, treatment, and control of hypertension among adults in Mongolia from 4 cross-sectional surveys in 2005, 2009, 2013, and 2019.

This study aimed to analyze trends in the prevalence, awareness, treatment, and control of hypertension and associated factors in persons 15 years and older from 2005 to 2019 in Mongolia.National data were analyzed from 21,342 people (≥15 years) who participated in 4 cross-sectional STEPwise Approach to NCD Risk Factor Surveillance surveys in Mongolia (2005, 2009, 2013, or 2019) and had complete blood pressure measurements. The prevalence, awareness, treatment, and control of hypertension were calculated using sociodemographic factors within each study year. Logistic regression was employed to assess the associations between sociodemographic and health factors and status of hypertension, awareness, treatment, and control by study year and pooled sample.Trend analyzes showed that the prevalence of hypertension decreased significantly from 28.4% in 2005 to 23.2% in 2019 (P < .001). The prevalence of awareness among hypertensives remained unchanged, the treatment among aware decreased, and the control rate increased. In adjusted logistic regression analysis with the pooled sample, male sex (adjusted odds ratio [AOR]: 1.49, 95% confidence intervals [CI]: 1.32–1.68), older age (≥45 years) (AOR: 5.90, 95% CI: 4.90–7.10), obesity (AOR: 4.29, 95% CI: 3.77–4.88), more frequent alcohol use (≥1–2 days/week) (AOR: 1.69, 95% CI: 1.39–2.05) were positively, and higher educational level (≥12 years) (AOR: 0.77, 95% CI: 0.68–0.87) and urban residence (AOR: 0.84, 95% CI: 0.74–0.97) were negatively associated with hypertension prevalence.The prevalence of hypertension among Mongolian adults has decreased in recent years. Levels of hypertension awareness were unchanged, treatment decreased, and control increased. Increased health promotion, detection, and treatment of hypertension in Mongolia are indicated.

Trends in Prevalence of Serious Psychological Distress and Depression Among Adults with Stroke in the United States

ObjectivesTo examine national trends in prevalence of serious psychological distress and depression among adults with stroke in the United States (US) from 2004 to 2017, and variations across sociodemographic subgroups. MethodsData were obtained from the household components of the 2004-2017 Medical Expenditure Panel Survey, a nationally representative survey in the US. History of stroke or transient ischemic attack was based on self-report. Psychological distress was measured by the Kessler-6 scale, and depressive symptoms were measured by the 2-item Patient Health Questionnaire. Logistic regression models were used to examine the trends in prevalence of serious psychological distress and depression overall and by age, sex, and race/ethnicity. ResultsAmong 10889 participants with stroke or transient ischemic attack, 60.0% were aged ≥ 65, 54.4% were female, and 72.2% were non-Hispanic white. The prevalence of serious psychological distress decreased from 14.9% in 2004-2005 to 11.3% in 2016-2017, corresponding to 7% lower odds every 2 years (adjusted odds ratio [aOR0.93, 95% confidence interval [CI]=0.89-0.97); and the prevalence of depression decreased from 23.1% in 2004-2005 to 18.3% in 2016-2017, corresponding to 5% lower odds every 2 years (aOR=0.95, 95% CI=0.92-0.98), after adjustment for sociodemographic characteristics, functional limitations, and antidepressant use. The trends varied significantly by age, but not sex and race/ethnicity. The overall decline was mainly driven by older adults above age 64. ConclusionsPrevalence of serious psychological distress and depression among US adults with stroke decreased from 2004 to 2017, but the burden of mental health problems remained high.

United States national trends in prevalence of major depressive episode and co-occurring suicidal ideation and treatment resistance among adults

• This study examined temporal trends in the prevalence of mood disorders in the US. • The prevalence of MDE+SI significantly increased among US adults from 2009 to 2017. • Disproportionate trends were observed among some sociodemographic groups. • Policy interventions in mental healthcare are needed. Improvement in depression screening and treatment has emerged as a national priority in the US. This study examined temporal trends in prevalence of sub-populations of individuals with past-year major depressive episode (MDE), including those with suicidal ideation (SI), a suicide plan or attempt (SP/SA), and treatment-resistant depression (TRD). Using the National Survey on Drug Use and Health (NSDUH; 2009–2017), yearly prevalence and trends over time of sub-populations among US adults overall and among those with MDE were determined; prevalence estimates were stratified by sociodemographic characteristics. Over the 9-year period, prevalence of MDE+SI increased significantly by 29.3%, from 1.7% to 2.2% (adjusted odds ratio [aOR]=1.38, 95% CI=1.20–1.59); the increase was most prominent among young adults, women, Caucasians, and Native Americans/Alaskan Natives. Among those with MDE, prevalence of SI increased by 21.2%, from 25.6% to 31.1% (aOR=1.25, 95% CI=1.06–1.48). Among those with an MDE in 2017, 31.1% reported SI, 11.5% reported a SP/SA, 9.1% had TRD, and 4.3% experienced TRD+SI. The NSDUH is based on self-report data; rates of diagnoses and SI from objective assessments and clinical evaluations may be different. Additionally, the survey is cross-sectional rather than longitudinal. Substantial increases in the prevalence of SI among adults and among those with MDE were observed from 2009 to 2017; disproportionate trends were observed among some sociodemographic groups. These findings underscore the importance of understanding the reasons for these concerning trends, as well as the need for improvements in identification and treatment for at-risk individuals.

Prevalence and Patterns of Extramarital Sex among Chinese Men and Women: 2000-2015

ABSTRACT Despite growing concern about the “sexual revolution” in China in the past decades, empirical evidence regarding the national trends in prevalence and patterns of extramarital sex (EMS) remains sparse. This study aimed to fill this gap, using data from a population-based, repeated cross-sectional survey administered at four time points during the period 2000–2015. EMS was assessed by asking whether a person in marriage had engaged in sexual activity with someone else during the relationship with his/her current partner. Our findings showed that among married adults aged 20–59, the occurrence rate of EMS nearly tripled over the period 2000–2015, increasing from 12.9% to 33.4% for men, and from 4.7% to 11.4% for women. Moreover, in the early years of this century, EMS was negatively associated with older age (50–59 years), lower educational level (elementary and below) and rural residence for men, and negatively associated with older age and positively associated with higher educational level (college and above) for women. All these differences, however, disappeared in more recent years. Overall, this study indicates a marked increase in EMS, a widening gender gap in EMS, and for each gender, a convergence of EMS across various sociodemographic groups.

39 Impact of Cannabis Use on Chronic Pancreatitis: A 10-Year Analysis of the National Inpatient Sample Database

INTRODUCTION: Chronic pancreatitis (CP) is a debilitating chronic disease and significantly impacts patient's quality of life. There is evidence that cannabinoids reduce markers of inflammation and fibrosis in pancreatic stellate cells; Cannabis is becoming increasingly popular and there are currently 33 states in the US that have approved medical cannabis while 10 states have approved cannabis for recreational use. We investigated the national trends in prevalence, mortality, length of stay (LOS), hospitalization charges and cost of chronic pancreatitis patients and compared between cannabis-exposed (CE) and non-cannabis-exposed (non-CE). METHODS: The National Inpatient Sample (NIS) database from 2005 to 2014 was queried for all patients with a primary discharge diagnosis of CP as per the International Classification of Diseases 9th revision (ICD-9) code 5771. Active exposure to cannabis was ascertained based on ICD-9 code 304.3X and 305.2X. We compared CE vs. non-CE patients. Outcomes included in-hospital mortality, length of stay (LOS), inflation adjusted charges and cost. Propensity match analysis for age, gender, race, median income quartile, hospital characteristics and Elixhauser comorbidity index and multivariable logistic regression models were performed using STATA 14 software. RESULTS: Over 31,481 patients with CP as the primary diagnosis were analyzed. Cannabis-exposure prevalence was 1.4% (447 patients). The mean age of CP patients was 49. Patients exposed to cannabis were younger (42 vs 49-year-old, P &lt; 0.001) and mostly males (69% vs 49.7%, P &lt; 0.001). After adjusting for these factors, CE patients had lower total charges compared to non-CE (US$ 21,589 vs. 30,291 P &lt; 0.001) (Figure 1a). CE patients were also hospitalized for fewer number of days when compared to non-CE patients (3.84 vs 5.19 days). There was a significant downward trend in the prevalence of chronic pancreatitis admissions (P &lt; 0.001) amongst non-CE patients while there was an upward trend in the prevalence of chronic pancreatitis admissions amongst CE patients (Figure 2a, b). Interestingly, after matching for age, gender and comorbidities – CE patients had lower inpatient mortality (P = 0.059). CONCLUSION: In patients admitted with a primary diagnosis of CP, CE patients had fewer length of stay, hospitalization cost and inpatient mortality. The interplay of these factors remains unknown and studies looking at cannabis strength/dose, route and consumption frequency are needed.

National trends in prevalence and mortality rates of thyroid cancer using data from the Ministry of Health of Peru

The incidence of thyroid cancer has increased worldwide. Peru has few reports describing the national and regional epidemiology of thyroid cancer. The incidence of thyroid cancer has increased worldwide. Peru has few reports describing the national and regional epidemiology of thyroid cancer. A descriptive study of trends was conducted with secondary data obtained from a public information source in Peru. The ICD 10: C73.0 coding record was evaluated, by age group, year and region. The age-standardized prevalence (period 2005 to 2016) and mortality (period 2005 to 2015) were calculated by region and year of study. In the 2005-2016 period, 19 513 cases of thyroid cancer were recorded. The age group with the highest frequency was 30 to 59 years (57.7%). The prevalence increased from 4.7 to 15.2 cases per 100 000 inhabitants in the period 2005-2016, with the coastal region showing the greatest increase. Likewise, 1596 deaths from thyroid cancer (period 2005 to 2015) were recorded, more frequently in those older than 60 years (75.5%). The age-standardized mortality rate increased from 0.67 in 2005 to 0.72 in 2015, being the highlands the one with the greatest increase. The prevalence of thyroid cancer increased and mortality remained constant in the period studied. These results suggest exploring social and population factors that may have influenced these results. Likewise, population records of this and other neoplasms in Peru should be improved.

Epidemiology and national trends in prevalence and surgical management of metastatic spinal disease

Surgical treatment for spinal metastasis has benefited from improvements in surgical techniques. However, the trends in treatment and outcomes for spinal metastasis surgery have not been well-established in a pediatric population. Patients <20 years old with metastatic spinal tumors undergoing spinal surgery were identified in the KID database. Trends for spinal metastases treatment and patient outcomes were analyzed using weight-adjusted ANOVAs. 333 patients were identified in the KID database. The top five primary diagnoses were metastatic brain/spinal cord tumor (19.8%), metastatic nervous system tumor (15.9%), metastatic bone cancer (13.2%), spinal cord tumor (4.2%), and tumor of ventricles (3.0%). There was an increased incidence of spinal metastasis diagnoses from 2003 to 2012 (88.5–117.9 per 100,000; p < 0.001) and an increased trend in the incidence of surgical treatment for spinal metastasis from 2003 to 2012 (p = 0.014). The average age was 10.19 ± 6.33 years old and 38.4% were female. The average length of stay was 17.34 ± 24.36 days. Average CCI increased over time (2003: 7.87 ± 1.40, 2012: 8.44 ± 1.39; p = 0.006). The most common surgeries were excision of spinal cord/meninges lesions (69.1%) and decompression of spinal canal (38.1%). Length of hospital stay and in-hospital mortality did not change over time (17.34–18.04 days, p = 0.337; 1.6%–2.9%, p = 0.801). 10.5% of patients underwent a posterior fusion and 22.2% had at least one complication (nervous system, respiratory, dysphagia, infection). The overall complication rate remained stable over time (23.4%–21.8%, p = 0.952). Surgical treatment for spinal metastasis in the last decade has increased, though the complication rates, in-hospital mortality, and length of stay have remained stable.

Emergency Department Utilization in Patients With Neurogenic Bladder: Contemporary Burden and National Trends in Prevalence, Inpatient Admission, and Associated Charges, 2006-2011

To quantify the national burden of neurogenic bladder disease, a chronic debilitating condition associated with frequent hospital visits, in the contemporary emergency care setting. Relying on the Nationwide Emergency Department Sample, 2006-2011, we abstracted patients presenting to the emergency department (ED) with neurogenic bladder utilizing International Classification of Diseases, Ninth Revision (ICD-9) codes. National trends in ED presentation, subsequent inpatient admission vs discharge, and associated charges were examined using the estimated annual percent change methodology. Over the study period, a total of 875,066 patients with neurogenic bladder were seen in the ED, of which 538,532 (61.5%) were admitted. Total and median ED charges increased at an annual rate of 36.66% (P <.001) and 13.24% (P <.001), respectively, with total ED charges amounting to 87.48 million USD in the year 2011. Annual ED utilization also increased, although at a slower rate, 1.89% (P = .017). Inpatient admissions decreased at an annual rate of 3.67% (P <.001), whereas the use of long-term care facilities increased at 11.82% (P = .005). Total ED charges are increasing at a dramatic rate, driven by the increasing utilization of the ED as an entry point to health care as well as the increasing per-visit charges. Encouragingly, the rates of inpatient admission are decreasing, likely secondary to improved triaging in the ED and increased utilization of long-term care facilities. It remains to be seen, however, whether the increased spending in the ED for better triaging and investment in long-term care facilities will translate into an overall economic benefit by reducing inpatient charges or not.

National Trends in the Prevalence and Treatment of Depression in Adolescents and Young Adults.

This study examined national trends in 12-month prevalence of major depressive episodes (MDEs) in adolescents and young adults overall and in different sociodemographic groups, as well as trends in depression treatment between 2005 and 2014. Data were drawn from the National Surveys on Drug Use and Health for 2005 to 2014, which are annual cross-sectional surveys of the US general population. Participants included 172 495 adolescents aged 12 to 17 and 178 755 adults aged 18 to 25. Time trends in 12-month prevalence of MDEs were examined overall and in different subgroups, as were time trends in the use of treatment services. The 12-month prevalence of MDEs increased from 8.7% in 2005 to 11.3% in 2014 in adolescents and from 8.8% to 9.6% in young adults (both P < .001). The increase was larger and statistically significant only in the age range of 12 to 20 years. The trends remained significant after adjustment for substance use disorders and sociodemographic factors. Mental health care contacts overall did not change over time; however, the use of specialty mental health providers increased in adolescents and young adults, and the use of prescription medications and inpatient hospitalizations increased in adolescents. The prevalence of depression in adolescents and young adults has increased in recent years. In the context of little change in mental health treatments, trends in prevalence translate into a growing number of young people with untreated depression. The findings call for renewed efforts to expand service capacity to best meet the mental health care needs of this age group.

National trends in burn and inhalation injury in burn patients: results of analysis of the nationwide inpatient sample database.

The aim of this study was describe national trends in prevalence, demographics, hospital length of stay (LOS), hospital charges, and mortality for burn patients with and without inhalational injury and to compare to the National Burn Repository. Burns and inhalation injury cause considerable mortality and morbidity in the United States. There remains insufficient reporting of the demographics and outcomes surrounding such injuries. The National Inpatient Sample database, the nation's largest all-payer inpatient care data repository, was utilized to select 506,628 admissions for burns from 1988 to 2008 based on ICD-9-CM recording. The data were stratified based on the extent of injury (%TBSA) and presence or absence of inhalational injury. Inhalation injury was observed in only 2.2% of burns with <20% TBSA but 14% of burns with 80 to 99% TBSA. Burn patients with inhalation injury were more likely to expire in-hospital compared to those without (odds ratio, 3.6; 95% confidence interval, 2.7-5.0; P < .001). Other factors associated with higher mortality were African-American race, female sex, and urban practice setting. Patients treated at rural facilities and patients with hyperglycemia had lower mortality rates. Each increase in percent of TBSA of burns increased LOS by 2.5%. Patients with burns covering 50 to 59% of TBSA had the longest hospital stay at a median of 24 days (range, 17-55). The median in-hospital charge for a burn patient with inhalation injury was US$32,070, compared to US$17,600 for those without. Overall, patients who expired from burn injury accrued higher in-hospital charges (median, US$50,690 vs US$17,510). Geographically, California and New Jersey were the states with the highest charges, whereas Vermont and Maryland were states with the lowest charges. The study analysis provides a broad sampling of nationwide demographics, LOS, and in-hospital charges for patients with burns and inhalation injury.

Smoking Prevalence and Cigarette Consumption in 187 Countries, 1980-2012

Tobacco is a leading global disease risk factor. Understanding national trends in prevalence and consumption is critical for prioritizing action and evaluating tobacco control progress. To estimate the prevalence of daily smoking by age and sex and the number of cigarettes per smoker per day for 187 countries from 1980 to 2012. Nationally representative sources that measured tobacco use (n = 2102 country-years of data) were systematically identified. Survey data that did not report daily tobacco smoking were adjusted using the average relationship between different definitions. Age-sex-country-year observations (n = 38,315) were synthesized using spatial-temporal gaussian process regression to model prevalence estimates by age, sex, country, and year. Data on consumption of cigarettes were used to generate estimates of cigarettes per smoker per day. Modeled age-standardized prevalence of daily tobacco smoking by age, sex, country, and year; cigarettes per smoker per day by country and year. Global modeled age-standardized prevalence of daily tobacco smoking in the population older than 15 years decreased from 41.2% (95% uncertainty interval [UI], 40.0%-42.6%) in 1980 to 31.1% (95% UI, 30.2%-32.0%; P < .001) in 2012 for men and from 10.6% (95% UI, 10.2%-11.1%) to 6.2% (95% UI, 6.0%-6.4%; P < .001) for women. Global modeled prevalence declined at a faster rate from 1996 to 2006 (mean annualized rate of decline, 1.7%; 95% UI, 1.5%-1.9%) compared with the subsequent period (mean annualized rate of decline, 0.9%; 95% UI, 0.5%-1.3%; P = .003). Despite the decline in modeled prevalence, the number of daily smokers increased from 721 million (95% UI, 700 million-742 million) in 1980 to 967 million (95% UI, 944 million-989 million; P < .001) in 2012. Modeled prevalence rates exhibited substantial variation across age, sex, and countries, with rates below 5% for women in some African countries to more than 55% for men in Timor-Leste and Indonesia. The number of cigarettes per smoker per day also varied widely across countries and was not correlated with modeled prevalence. Since 1980, large reductions in the estimated prevalence of daily smoking were observed at the global level for both men and women, but because of population growth, the number of smokers increased significantly. As tobacco remains a threat to the health of the world's population, intensified efforts to control its use are needed.

AIDS‐related Kaposi's sarcoma in Brazil: trends and geopolitical distribution

AIDS-related Kaposi's sarcoma (KS) is a unique model of the relationship between viral infection, immunity, environmental, and genetic factors in viral cancers. The goal was to determine the distribution of KS cases among Brazilian geopolitical regions, looking at the ecological relationship with median CD4 cell count. Ecological study using Brazilian National Diseases Reporting Databases: 1982-2009. Subjects ≥ 13 years of age who have KS cited in their AIDS reporting form were selected, and demographic and HIV exposure data were collected. We found 11,731 KS cases in the period, with a prevalence of 2.4% among AIDS cases; 88% were male, and 68% lived in the Southeast region, which accounted for 59% of AIDS cases. The regional and national prevalence trends were similar, although the highest proportion among women was found in the North region, which has the lowest number of both AIDS and KS cases. Heterosexual transmission accounted for 87% of HIV among women compared to 18% among men. Fifty-seven percent of all KS cases were diagnosed before antiretroviral therapy (ART). Injection drug use accounted for 11% of KS cases. Median survival was 472 days before the ART era and 1482 after it (P < 0.001). Median CD4 counts increased in all regions in the period as ART coverage expanded, and a resulting correlating decline in KS cases was observed. Prevalence of KS declined after the introduction of ART in all regions of Brazil, suggesting individual protection conveyed by ART.

Acute respiratory distress syndrome and acute lung injury in patients with vertebral column fracture(s) and spinal cord injury: a nationwide inpatient sample study

Retrospective Nationwide Inpatient Sample (NIS) study. To determine national trends in prevalence, risk factors and mortality for vertebral column fracture (VCF) and spinal cord injury (SCI) patients with and without acute respiratory distress syndrome/acute lung injury (ARDS/ALI). United States of America, 1988 to 2008. The NIS was utilized to select 284 612 admissions for VCF with and without acute SCI from 1988 to 2008 based on ICD-9-CM. The data were stratified for in-hospital complications of ARDS/ALI. Patients with SCI were more likely to develop ARDS/ALI compared with those without (odds ratio (OR): 4.9, 95% confidence interval (CI) 4.7-5.2, P<0.001). Compared with patients with lumbar fractures, those with cervical, thoracic and sacral fractures were more likely to develop ARDS/ALI (P<0.001). ARDS/ALI was statistically more prevalent (P<0.01) in VCF/SCI patients with epilepsy, sepsis, cardiac arrest, congestive heart failure (CHF), hypertension, chronic obstructive pulmonary disease and metabolic disorders. Patients with female gender, surgery at rural practice setting, and coronary artery disease and diabetes were less likely to develop ARDS/ALI (P<0.001). VCF/SCI patients who developed ARDS/ALI were more likely to die in-hospital than those without ARDS/ALI (OR 6.5, 95% CI 6.0-7.1, P<0.001). Predictors of in-hospital mortality after VCF/SCI include: older age, male sex, epilepsy, sepsis, hypertension, CHF, chronic obstructive pulmonary disease and liver disease. Patients who developed ARDS/ALI stayed a mean of 25 hospital days (30-440 days) while patients without ARDS/ALI stayed a mean of 6 days (7-868 days, P<0.001). Our analysis demonstrates that SCI patients are more at risk for ARDS/ALI, which carries a significantly higher risk of mortality.

National trend in prevalence, cost, and discharge disposition after subdural hematoma from 1998–2007*

Subdural hematoma is a common type of intracranial hemorrhage, particularly among the elderly, yet, despite the aging U.S. population, little has been published in the last 10 yrs. This study aimed to determine national trends in prevalence, discharge disposition, length of stay, and cost of subdural hematoma over time. Retrospective cohort study. Adult patients hospitalized in the United States between 1998 and 2007 identified in the Nationwide Inpatient Sample. Seven hundred twenty thousand, two hundred ninety-seven adult patients hospitalized in subdural hematoma. None. Discharge disposition, hospital length of stay, and national cost (adjusted to 2007 dollars) were examined. Hospitalizations for subdural hematoma increased from 59,373 (30 per 100,000 hospitalizations) in 1998 to 91,935 (42 per 100,000) in 2007, constituting a 39% per-capita increase. The prevalence of subdural hematoma increased with age (p < .001), particularly among those >80 yrs of age (36% of subdural hematoma cohort), in lower income patients, in patients with acquired abnormalities of the coagulation cascade, and in patients with trauma. Inhospital mortality decreased from 15% to 12% (p = .001), but unsatisfactory discharge disposition increased from 17% to 20% (p < .001). National cost increased from $1.0 to $1.6 billion (p < .001). Unsatisfactory discharge disposition and cost were both independently predicted by higher comorbidity index, alcohol abuse, history of trauma, and acquired abnormal coagulation or platelet factors (p < .05). Neurosurgical intervention for subdural hematoma decreased from 41% in 1998 to 31% in 2007 (p < .001). Subdural hematoma evacuation was associated with decreased mortality but did not significantly protect against poor discharge disposition and was associated with significantly higher cost. The prevalence and total cost for subdural hematoma has increased significantly in the last decade nationwide. Health resource consumption for subdural hematoma is increasing without clear evidence that management practices are leading to improved outcomes.

General and abdominal obesity in South Korea, 1998–2007: Gender and socioeconomic differences

Objective To examine national trends in prevalence and socioeconomic inequalities in both general (measured by body mass index) and abdominal obesity (measured by waist circumference) by gender and socioeconomic position (SEP) indicators. Methods Data were from four rounds of nationally representative cross-sectional surveys for Korean men and women aged 25-64 (6,286 in 1998, 4,839 in 2001, 4,181 in 2005, and 2,006 in 2007). We calculated age-adjusted prevalence rates of overweight and abdominal obesity by gender and SEP indicators (education, occupational class, employment status and income) and examined trends of prevalence and its inequalities. Results Overweight and abdominal obesity has significantly increased in Korean men (P for linear trend < 0.01), not in women. For men, high SEP was associated with overweight and abdominal obesity, but the magnitude of socioeconomic differences in obesity measures generally remained unchanged during the study period. Among women, low SEP was associated with overweight. Interestingly, increasing inequalities in abdominal obesity according to education and income were found in women. Conclusions Clear gender differences were noted in (1) time trends of overweight and abdominal obesity, (2) relationships between the obesity measures and various SEP indicators, and (3) linear time trends of socioeconomic differentials in obesity.