Prevalence of serious eye disease and visual impairment in a north London population: population based, cross sectional study

Abstract Background Refractive errors and visual impairment in southernmost China have not been reported previously. We aim to investigate and determine the age-specific prevalence of myopia, hyperopia, astigmatism, and visual impairment based on a large population cross-sectional study in Hainan area of southernmost tropical province in China. Methods A population-based sample of 31,524 children aged 6–15 years from Hainan was assessed. Non-cycloplegic autorefraction and visual acuity (VA) analyses were performed on all participants and a subgroup of participants undergoing cycloplegia. Results Of all participants, 23.0% presented uncorrected VA (UCVA) was worse than 20/40 in worse eye, 6.0% presented mild presenting visual acuity impairment (PVAI), 7.0% presented moderate PVAI, 0.2% presented severe PVAI in the better eye, and 46.9% presented abnormal UCVA [worse than 20/25 (≥ 6, < 8 years old) and worse than 20/20 (≥ 8 years and older)] at least in one eye. The overall prevalence of myopia [spherical equivalent (SE) ≤ − 0.50 D] and high myopia (SE ≤ − 6.00 D) were 46.0%, 1.0% respectively. Hyperopia [SE ≥ + 1.00 D (≥ 7 years old) and SE ≥ + 2.00 D (≥ 6, < 7 years old)] and significant hyperopia (SE ≥ + 3.00 D) were 4.2 and 0.6%, respectively. Astigmatism [cylinder ≥ 1.00 D (≥ 7 years old) and ≥ 1.75 D (≥ 6, < 7 years old)] was found in 31.9%. Conclusions Myopia was the most common refractive error in southernmost province in China (Hainan). Its prevalence increased with age, while hyperopia prevalence showed a decreasing trend. However, myopia, especially high myopia prevalence was much lower than in other urban regions across China.

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Ultraviolet-related ocular problems in children living on the coast of Southwest Sumba, Indonesia

Paediatrica Indonesiana ◽

10.14238/pi58.3.2018.128-32 ◽

2018 ◽

Vol 58 (3) ◽

pp. 128-32

Author(s):

Ratna Sitompul ◽

Rita Sitorus ◽

Julie Barliana ◽

Rossalyn Andrisa ◽

Budiman Prakoso ◽

...

Keyword(s):

Visual Acuity ◽

Ultraviolet Radiation ◽

Visual Impairment ◽

Population Based ◽

Cross Sectional Study ◽

Predisposing Factors ◽

Uv Exposure ◽

Sectional Study ◽

Cross Sectional ◽

Early Signs

Background A previous study has shown a high proportion of visual impairment and blindness in the adults of Southwest Sumba, Indonesia due to ultraviolet-radiation (UVR)- related ocular problems, such as cataract and pterygium. Currently, there is no data regarding the effect of ultraviolet (UV) exposure on children and its future implications. Objective To seek the predisposing factors of UVR ocular problems in the children of Southwest Sumba. Methods A population-based cross-sectional study was conducted in Perokonda Village, Southwest Sumba in May 2017. A total of 337 children <16 years old were examined for ocular problems by ophthalmologists. Subjects with ocular problems were then treated accordingly. Results Visual acuity was normal in 98.2% of subjects. Visual impairment and blindness were found in 1.2% and 0.3% of subjects, respectively. Ocular problems were found in 38%, consisting of conjunctival pigment deposits (60.2%), pinguecula (15.6%), and pterygium (13.3%). The UVR ocular problems constituted 33.8% of all ocular problems, comprising conjunctival pigment deposits (22.8%), pinguecula (6%), and pterygium (5%). Conclusion The proportion of UVR ocular problems in the children of Perokonda village is 34.5%, the most common of which being conjunctival pigment deposits. Such deposits may be early signs of UVR ocular problems. This study serves as a platform to highlight the possible relationship between pigment deposits and future UVR ocular problems, which warrants further study.

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Faculty Opinions recommendation of Body composition and basal metabolic rate in Hidradenitis Suppurativa: a Danish population-based and hospital-based cross-sectional study.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.726010578.793534526 ◽

2017 ◽

Author(s):

Iltefat Hamzavi

Keyword(s):

Body Composition ◽

Metabolic Rate ◽

Basal Metabolic Rate ◽

Hidradenitis Suppurativa ◽

Population Based ◽

Cross Sectional Study ◽

Sectional Study ◽

Danish Population ◽

Cross Sectional

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Prevalence of disabilities and non-communicable diseases in an elderly population in the Telangana state, India: a population-based cross-sectional study

BMJ Open ◽

10.1136/bmjopen-2020-041755 ◽

2021 ◽

Vol 11 (2) ◽

pp. e041755

Author(s):

Srinivas Marmamula ◽

Satya Brahmanandam Modepalli ◽

Thirupathi Reddy Kumbham ◽

Rajesh Challa ◽

Jill E Keeffe

Keyword(s):

Elderly Population ◽

Self Care ◽

The Elderly ◽

Population Based ◽

Cross Sectional Study ◽

Communicable Diseases ◽

Self Report ◽

Sectional Study ◽

Cross Sectional ◽

Non Communicable Diseases

ObjectivesTo assess the prevalence of disabilities (vision, hearing, mobility, cognitive, self-care and communication) and non-communicable diseases (NCDs) among the elderly population in two districts in Telangana, India.DesignPopulation-based cross-sectional study using a cluster random sampling method to select the study clusters.SettingElderly population in Khammam and Warangal districts were recruited. Detailed interviews were conducted by trained community health workers. Personal and demographic information such as age, gender, level of education and a self-report of NCDs was collected. The Washington Disability Questionnaire was administered to assess the presence of disabilities.Participants1821 participants aged ≥60 years, 54.5% were women, and 73.3% had no education.Primary outcome measurePrevalence of disabilities and NCDs.ResultsOverall, the prevalence of at least disability was 20.3% (95% CI 16.3 to 24.9). The prevalence of self- reported disabilities were: seeing (5.9%; 95% CI 4.4 to 7.8), mobility (12.8%; 95% CI 9.7 to 16.8), hearing (3.6%; 95% CI 2.7 to 4.8), cognition (4.8%; 95% CI 3.5 to 6.7), self-care (3.3%; 95% CI 2.3 to 4.7) and communication (1.8%; 95% CI 1.2 to 2.6). Overall, the prevalence of at least one NCD was 34.2% (95% CI 30.9 to 37.7). Hypertension was the most common systemic condition (25.4%; 95% CI 22.4 to 28.7), followed by diabetes (9.0%; 95% CI 7.3 to 11.0), and body pains (muscle-skeletal) (9.9%; 95% CI 8.1 to 12.2).ConclusionEvery fifth elderly person in the districts of Khammam and Warangal in Telangana had at least one self-reported disability. Besides, a third of the elderly had at least one NCD. There is a definite need to develop comprehensive public health strategies to address disabilities and NCDs in Telangana.

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Association between pyrethroid exposure and cardiovascular disease: A national population-based cross-sectional study in the US

Environment International ◽

10.1016/j.envint.2021.106545 ◽

2021 ◽

Vol 153 ◽

pp. 106545

Author(s):

Qingping Xue ◽

An Pan ◽

Ying Wen ◽

Yichao Huang ◽

Da Chen ◽

...

Keyword(s):

Cardiovascular Disease ◽

Population Based ◽

Cross Sectional Study ◽

Sectional Study ◽

Cross Sectional ◽

National Population ◽

The Us

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Prevalence and risk factors of Helicobacter pylori infection in Wuwei, a high‐risk area for gastric cancer in northwest China: An all‐ages population‐based cross‐sectional study

Helicobacter ◽

10.1111/hel.12810 ◽

2021 ◽

Author(s):

Xiaofeng Wang ◽

Xiaochuang Shu ◽

Qiang Li ◽

Youpeng Li ◽

Zhaofeng Chen ◽

...

Keyword(s):

Risk Factors ◽

Gastric Cancer ◽

Helicobacter Pylori ◽

Northwest China ◽

Population Based ◽

Cross Sectional Study ◽

Sectional Study ◽

Risk Area ◽

Cross Sectional ◽

High Risk Area

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Myopia, corneal endothelial cell density and morphology in a Japanese population-based cross-sectional study: the JPHC-NEXT Eye Study

Scientific Reports ◽

10.1038/s41598-021-85617-4 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Naohiko Aketa ◽

Miki Uchino ◽

Motoko Kawashima ◽

Yuichi Uchino ◽

Kenya Yuki ◽

...

Keyword(s):

Endothelial Cell ◽

Cell Density ◽

Contact Lenses ◽

Population Based ◽

Cross Sectional Study ◽

Corneal Endothelial Cell ◽

Endothelial Cell Density ◽

Sectional Study ◽

Cross Sectional ◽

Corneal Endothelial Cell Density

AbstractThis population-based cross-sectional study was performed to determine the mean corneal endothelial cell density (ECD), coefficient of variation (CV), and hexagonality (HEX), and their associations with myopia in Japanese adults living in Chikusei city. Of 7109 participants with available data, 5713 (2331 male and 3382 female) participants were eligible for analysis. After assessing the relationship between participant characteristics and spherical equivalent refraction (SER), the association of SER with the abnormal value of ECD (< 2000 cells/mm), CV (≥ 0.40), and HEX (≤ 50%) were determined using the logistic regression models adjusting for potential confounders (age, intraocular pressure, keratometric power, height, and antihypertensive drug use). In male participants, there was no statistically significant relationships between SER and endothelial parameters. In female participants, compared to emmetropia, SER ≤ − 6 D had significantly higher odds ratio (OR) of having the abnormal value of CV (OR = 2.07, 95% confidence interval [CI] 1.39–3.10) and HEX (OR = 2.04, 95% CI 1.29–3.23), adjusted for potential confounders, indicating that the high myopia was associated with the abnormal values of CV and HEX. Further adjustment for contact lenses wear partly attenuated these associations. Association between the SER and ECD was not detected.

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