scholarly journals Myopia in school children from high mountain region of Nepal

2013 ◽  
Vol 5 (2) ◽  
pp. 246-249 ◽  
Author(s):  
Sirjana Adhikari
Keyword(s):  
Large Population ◽  
Public Health Problem ◽  
Population Based ◽  
Mountain Region ◽  
Socioeconomic Background ◽  
High Mountain ◽  
Ophthalmological Examination ◽  
Vision Screening ◽  
Cross Sectional ◽  
Refractive Correction

Objective: Myopia is emerging as a public health problem in school going children. Prevalence of myopia differs in different geographical areas, race, ethnic groups and socioeconomic background. Purpose of this study was to find out myopia prevalence in schoolchildren from very high mountain region of Nepal. Materials and methods: It was a cross sectional descriptive study. Vision screening was conducted in Snowland School among the children who come from high mountain region. Vision screening was done by volunteers using standard Snellen’s chart. Those who failed screening test underwent a detailed ophthalmological examination by a pediatric ophthalmologist. Results: A total of 140 children had their vision assessed. Mean age was 13.9yrs (±2.8yrs SD). On screening, 28.5% children (n=40) had vision less than 6/9 in at least one eye. Seven children were already wearing myopic glasses, among which only 2 had vision 6/9 or better. Out of 40 children, 10% (n=4) had vision 6/9 or better and 90% (n=36) had refractive error. Out of these 36 children, myopia was present in all (100%).Hence prevalence of Myopia in total school population was 27% (n=38).All the children had simple Myopia from 0.5D-3.5D. After refractive correction, all the children had best corrected visual acuity of 6/9 or better. 86 % (n=120) children never had their eyes checked before. Conclusion The study showed high prevalence of myopia and was only ocular morbidity present in children. The result of this study can be a baseline in conducting large population based study in children from high mountains of Nepal. Nepal J Ophthalmol 2013; 5(10): 246-249 DOI: http://dx.doi.org/10.3126/nepjoph.v5i2.8737

scholarly journals Visual impairment and blindness: an overview of prevalence and causes in Brazil

2009 ◽  
Vol 81 (3) ◽  
pp. 539-549 ◽  
Author(s):  
Solange R. Salomão ◽  
Márcia R. K. H. Mitsuhiro ◽  
Rubens Belfort Jr
Keyword(s):  
Older Adults ◽  
Visual Impairment ◽  
School Children ◽  
Refractive Error ◽  
Public Health Problem ◽  
Population Based ◽  
Epidemiologic Studies ◽  
Important Public Health Problem ◽  
Cross Sectional ◽  
Refractive Correction

Our purpose is to provide a summary overview of blindness and visual impairment on the context of recent Brazilian ocular epidemiologic studies. Synthesis of data from two cross-sectional population-based studies - the São Paulo Eye Study and the Refractive Error in School Children Study is presented. 3678 older adults and 2441 school children were examined between July 2004 and December 2005. Prevalence of blindness in older adults using presenting visual acuity was 1.51% decreasing to 1. 07% with refractive correction. The most common causes of blindness in older adults were retinal disorders, followed by cataract and glaucoma. In school children, the prevalence of uncorrected visual impairment was 4.82% decreasing to 0.41% with refractive correction. The most common cause of visual impairment in school children was uncorrected refractive error. Visual impairment and blindness in Brazil is an important public health problem. It is a significant problem in older Brazilians, reinforcing the need to implement prevention of blindness programs for elderly people with emphasis on those without schooling. In school-children cost-effective strategies are needed to address a readily treatable cause of vision impairment - prescription and provision of glasses.

scholarly journals Socio-Economic Status and Prevalence of Self-Reported Osteoporosis in Tehran: Results from a Large Population-Based Cross-Sectional Study (Urban HEART-2)

2018 ◽  
Vol 95 (5) ◽  
pp. 682-690 ◽  
Author(s):  
M. Asadi-Lari ◽  
Y. Salimi ◽  
M. R. Vaez-Mahdavi ◽  
S. Faghihzadeh ◽  
A. A. Haeri Mehrizi ◽  
...  
Keyword(s):  
Economic Status ◽  
Large Population ◽  
Population Based ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Socio Economic Status

scholarly journals Multimorbidity as an important issue among women: results of a gender difference investigation in a large population-based cross-sectional study in West Asia

BMJ Open ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. e013548 ◽  
Author(s):  
Masoomeh Alimohammadian ◽  
Azam Majidi ◽  
Mehdi Yaseri ◽  
Batoul Ahmadi ◽  
Farhad Islami ◽  
...  
Keyword(s):  
Gender Difference ◽  
Large Population ◽  
Population Based ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional

Fish Intake and MRI Burden of Cerebrovascular Disease in Older Adults

Neurology ◽  
2021 ◽  
pp. 10.1212/WNL.0000000000012916
Author(s):  
Aline Thomas ◽  
Fabrice Crivello ◽  
Bernard Mazoyer ◽  
Stephanie Debette ◽  
Christophe Tzourio ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Cerebrovascular Disease ◽  
Brain Mri ◽  
Large Population ◽  
Population Based ◽  
Fish Intake ◽  
Mixed Data ◽  
Perivascular Spaces ◽  
Intracranial Volume ◽  
Cross Sectional

Background and Objective:Fish intake may prevent cerebrovascular disease (CVD), yet the mechanisms are unclear, especially regarding its impact on subclinical damage. Assuming that fish may have pleiotropic effect on cerebrovascular health, we investigated the association of fish intake with global CVD burden based on brain MRI markers.Methods:This cross-sectional analysis included participants from the Three-City Dijon population-based cohort (aged ≥65 years) without dementia, stroke, or history of hospitalized cardiovascular disease, who underwent brain MRI with automated assessment of white matter hyperintensities, visual detection of covert infarcts, and grading of dilated perivascular spaces. Fish intake was assessed through a frequency questionnaire and the primary outcome measure was defined as the first component of a factor analysis of mixed data applied to MRI markers. The association of fish intake with the CVD burden indicator was studied using linear regressions.Results:In total, 1,623 participants (mean age, 72.3 years; 63% women) were included. The first component of factor analysis (32.4% of explained variance) was associated with higher levels of all three MRI markers. Higher fish intake was associated with lower CVD burden. In a model adjusted for total intracranial volume, compared to participants consuming fish <1 per week, those consuming fish 2-3 and ≥4 times per week had a β = -0.19 (95% CI, -0.37; -0.01) and β = -0.30 (-0.57; -0.03) lower indicator of CVD burden, respectively (P trend <0.001). We found evidence of effect modification by age, so that the association of fish to CVD was stronger in younger participants (65-69 years) and not significant in participants aged ≥75 years. For comparison, in the younger age group, consuming fish 2-3 times a week was roughly equivalent (in opposite direction) to the effect of hypertension.Discussion:In this large population-based study, higher frequency of fish intake was associated with lower CVD burden, especially among participants younger than 75 years, suggesting a beneficial effect on brain vascular health before manifestation of overt brain disease.Classification of Evidence:This study provides Class II evidence that in individuals without stroke or dementia, higher fish intake is associated with lower subclinical CVD at MRI.

scholarly journals Trends, Coverage and Influencing Determinants of Influenza Vaccination in the Elderly: A Population-Based National Survey in Spain (2006–2017)

Vaccines ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 327
Author(s):  
Silvia Portero de la Cruz ◽  
Jesús Cebrino
Keyword(s):  
Influenza Vaccination ◽  
Chronic Diseases ◽  
Vaccination Coverage ◽  
Public Health Problem ◽  
Risk Groups ◽  
The Elderly ◽  
Population Based ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Significant Public Health

Influenza is a significant public health problem and the elderly are at a greater risk of contracting the disease. The vaccination coverage of the elderly is below the Spanish target of 65% for each influenza season. The aims of this study were to report the coverage of influenza vaccination in Spain among the population aged ≥65 years and high-risk groups for suffering chronic diseases, to analyze the time trends from 2006 to 2017 and to identify the factors which affect vaccination coverage. A nationwide cross-sectional study was conducted including 20,753 non-institutionalized individuals aged ≥65 years who had participated in the Spanish National Health Surveys in 2006, 2011/2012, and 2017. Sociodemographic, health-related variables, and influenza vaccination data were used. A logistic regression analysis was performed to determine the variables associated with influenza vaccination. Influenza vaccination coverage was 60%. By chronic condition, older people with high cholesterol levels and cancer had the lowest vaccination coverage (62.41% and 60.73%, respectively). This coverage declined from 2006 to 2017 in both groups. Higher influenza vaccination was associated with males, Spanish nationality, normal social support perceived, polypharmacy, worse perceived health, participation in other preventive measures, and increasing age and the number of chronic diseases.

scholarly journals Early screening and diagnosis of autism spectrum disorders in Vietnam: A population-based cross-sectional survey

2021 ◽  
Author(s):  
Le Thi Vui ◽  
Duong Minh Duc ◽  
Nguyen Thuy Quynh ◽  
Nguyen Thi Huong Giang ◽  
Vu Thi Thanh Mai ◽  
...  
Keyword(s):  
Autism Spectrum Disorders ◽  
Early Detection ◽  
Public Health Problem ◽  
Population Based ◽  
Autism Spectrum ◽  
Urban Setting ◽  
Cross Sectional ◽  
Middle Income ◽  
Middle Income Countries ◽  
Spectrum Disorders

Background: Early detection of autism spectrum disorders (ASDs) is essential given the under-reported cases in low- and middle-income countries. This first national representative survey was conducted to explore the prevalence of ASDs amongst 18 and 30 months in seven provinces in Vietnam.Design and Method: During 2017- 2018, a national cross-sectional and population-based survey for autism spectrum disorder (ASD) amongst 40,243 children aged 18 to 30 months was conducted in 7 provinces representing the socio-economic regions of Vietnam. M-CHAT was used to screen children and then confirmed by diagnostic assessment using DSM-IV criteria.Results: The prevalence of ASDs amongst children aged 18 and 30 months in Vietnam was high (0.758% or 1 in 132 children). Urban setting, male gender, and hereditable genes were associated with ASD prevalence.Conclusion: ASDs amongst children aged 18 and 30 months in Vietnam tend to be increasing and are similar to this rate in other middle-income countries but lower than that in Western countries. This under-recognized public health problem amongst children should be addressed by early detection and intervention for families with affected children.

Daytime napping is associated with retinal microcirculation: a large population-based study in China

SLEEP ◽  
2021 ◽  
Author(s):  
Xin Liu ◽  
Guowei Wang ◽  
Xiaoyan Wang ◽  
Yueye Wang ◽  
Yan Min ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Large Population ◽  
Vascular Diseases ◽  
Population Based ◽  
Cross Sectional Study ◽  
Cubic Spline ◽  
Fundus Photography ◽  
Cross Sectional ◽  
Retinal Microcirculation ◽  
Cubic Spline Curve

Abstract Study Objectives To investigate the association between daytime napping and retinal microcirculation. Methods This is a cross-sectional study from a prospective population-based cohort. 2,662 participants were recruited after quota sampling. Information on napping was collected through face-to-face interviews. Retinal vascular calibers (RVCs), including central retinal arteriolar equivalent (CRAE), central retinal venular equivalent (CRVE), and arterio-to-venous ratio (AVR), were obtained from fundus photography. Multivariate regression and restricted cubic spline curve were performed to determine the association between RVCs and daytime napping duration. Results 56.4% participants reported daytime napping regularly. Compared to no nap, daytime nap was related to higher CRAE, with nap duration of 0.5–1 h showing the most significant association. 0.5–1 h daytime nappers displayed an average of 4.18 µm (95% confidence interval [CI] 2.45–5.91, p &lt; 0.001) wider CRAE than non-nappers after adjustment. No significant association was found between CRVE and daytime napping. Moreover, individuals with 0.5–1 h daytime napping had a lower risk for AVR reduction (odds ratio [OR] 0.70, 95% confidence interval [CI] 0.56–0.86, p = 0.001) than non-nappers. Similar association persisted in non-hypertensive population. Restricted cubic spline indicated a J-shaped relationship between AVR reduction and nap duration. Conclusion Retinal microcirculation was positively associated with self-reported 0.5–1 h daytime napping. Better indicators of retinal microcirculation were probably related to nap duration in a J-shaped manner. Also, the possibly beneficial role of 0.5–1 h daytime napping on retinal microcirculation might be independent of clinically diagnosed vascular diseases.

scholarly journals Inhibitory control of positive and negative information and adolescent depressive symptoms: a population-based cohort study

2020 ◽  
pp. 1-11
Author(s):  
Gemma Lewis ◽  
Katherine S. Button ◽  
Rebecca M. Pearson ◽  
Marcus R. Munafò ◽  
Glyn Lewis
Keyword(s):  
Cohort Study ◽  
Depressive Symptoms ◽  
Inhibitory Control ◽  
Adolescent Depression ◽  
Large Population ◽  
Population Based ◽  
Negative Information ◽  
Convincing Evidence ◽  
Cross Sectional ◽  
Adolescent Depressive Symptoms

Abstract Background Large population-based cohort studies of neuropsychological factors that characterise or precede depressive symptoms are rare. Most studies use small case-control or cross-sectional designs, which may cause selection bias and cannot test temporality. In a large UK population-based cohort, we investigated cross-sectional and longitudinal associations between inhibitory control of positive and negative information and adolescent depressive symptoms. Methods Cohort study of 2328 UK adolescents who completed an affective go/no-go task at age 18. Depressive symptoms were assessed with the Clinical Interview Schedule Revised (CIS-R) and short Mood and Feeling Questionnaire (sMFQ) at age 18, and with the sMFQ 1 year later (age 19). Analyses were multilevel and traditional linear regressions, before and after adjusting for confounders. Results Cross-sectionally, we found little evidence that adolescents with more depressive symptoms made more inhibitory control errors [after adjustments, errors increased by 0.04% per 1 s.d. increase in sMFQ score (95% confidence interval 0.02–0.06)], but this association was not observed for the CIS-R. There was no evidence for an influence of valence. Longitudinally, there was no evidence that reduced inhibitory control was associated with future depressive symptoms. Conclusions Inhibitory control of positive and negative information does not appear to be a marker of current or future depressive symptoms in adolescents and would not be a useful target in interventions to prevent adolescent depression. Our lack of convincing evidence for associations with depressive symptoms suggests that the affective go/no-go task is not a promising candidate for future neuroimaging studies of adolescent depression.

scholarly journals Clinical and epidemiological profile of hypertensive patients at the primary health care level in the state of Alagoas

2018 ◽  
Vol 50 (6) ◽  
pp. 349-357
Author(s):  
Raphaela Costa Ferreira ◽  
Bruna Merten Padilha ◽  
Yasmin Eugênia Santos e Silva Pedrosa ◽  
Rosielle Batista Ferreira ◽  
Poliana Coelho Cabral ◽  
...  
Keyword(s):  
Health Care ◽  
Primary Health Care ◽  
Public Health Problem ◽  
Population Based ◽  
Important Public Health Problem ◽  
Cross Sectional ◽  
Study Objective ◽  
Hypertensive Patients ◽  
Primary Health ◽  
Epidemiological Profile

Study design: This was a cross-sectional, population-based and descriptive study. Study objective: To describe the clinical and epidemiological profile of hypertensive patients at the primary health care of Alagoas state. Methods: This study was carried out in the Basic Health Units of 12 cities of Alagoas, between 2014 and 2015, with hypertensive individuals between 20 and 60 years, of both gender. Socioeconomic, demographic, clinical, lifestyle, anthropometric and biochemical data were collected. Data were analyzed using descriptive statistics by Epi-Info version 7. Results: We evaluated 645 individuals. Of these, 86.2% were women, 62.3% had uncontrolled blood pressure, 41.9% had low educational level, 11.1% were smokers, 26.3% were alcohol users, 64.7% were sedentary, 48.4% were obese, 73.6% had high cardiovascular risk, according to waist circumference; 54.4% and 47.2% had elevated total cholesterol and triglycerides, respectively. Conclusion: Since hypertension is an important public health problem that has serious consequences, the knowledge of the hypertensive population profile of Alagoas will facilitate the treatment for the health of patients with this condition.

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