scholarly journals Prevalence and associated risk factors for childhood strabismus in Lhasa, Tibet, China: a cross-sectional, school-based study

2020 ◽  
Author(s):  
Hailong He ◽  
Jing Fu ◽  
Zhaojun Meng ◽  
Weiwei Chen ◽  
Lei Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Primary Schools ◽  
Clinical Trial Registry ◽  
Cross Sectional ◽  
School Based ◽  
Significant Difference ◽  
Associated Risk Factors ◽  
Grade One ◽  
Epidemiology Studies

Abstract Background To estimate the prevalence of strabismus and associated risk factors among grade one school children in Lhasa, Tibet, China. Methods The Lhasa Childhood Eye Study (LCES) was a cross-sectional, school-based childhood study conducted in Grade one students from primary schools in Lhasa, Tibet, China. Comprehensive ophthalmic examinations and basic systematic examinations were evaluated. A questionnaire survey contained information about children, as well as parents’ information was sent to the corresponding parents of eligible children. The prevalence of strabismus and its 95% confidence interval was estimated. Univariate and multivariate logistic regression analyses were conducted to determine the associated risk factors. Results A total of 1942 eligible grade one students were enrolled, of which 1856 participants completed all procedures. The average age was 6.83 ± 0.46 years, 53% of participants were boys and 1762 were the Tibetan Minority. Overall, the prevalence of strabismus was 68/1856(3.7%) (95%CI: 2.81,4.52), with no difference between the ages, genders, ethnics and BMI, while tilt one's head when writing was a risk factor for strabismus (P=0.004). Strabismus students had the mean best corrected visual acuity 0.16 ± 0.28(LogMAR), over 50% patients with esotropia are hyperopia, participants who has stereopsis impairments showed a significant difference between esotropia and exotropia (P = 0.026). Conclusions The prevalence of strabismus in LCES was 3.7%, higher than previous reports from Chinese childhood epidemiology studies. Strabismus is a common contributing factor to amblyopia. Tilt one's head when writing was a risk factor. Patients with esotropia are more likely to affect stereopsis and be the refractive state of hyperopia. Trial registration: The study has finished the clinical registration on Chinese Clinical Trial Registry. (http://www.chictr.org.cn, ChiCTR1900026693).

scholarly journals Prevalence and associated risk factors for childhood strabismus in Lhasa, Tibet, China: a cross-sectional, school-based study

2020 ◽  
Author(s):  
Hailong He ◽  
Jing Fu ◽  
Zhaojun Meng ◽  
Weiwei Chen ◽  
Lei Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Primary Schools ◽  
Clinical Trial Registry ◽  
Cross Sectional ◽  
School Based ◽  
Significant Difference ◽  
Associated Risk Factors ◽  
Grade One ◽  
Epidemiology Studies

Abstract Background: To estimate the prevalence of strabismus and associated risk factors among grade one school children in Lhasa, Tibet, China.Methods: The Lhasa Childhood Eye Study (LCES) was a cross-sectional, school-based childhood study conducted in Grade one students from primary schools in Lhasa, Tibet, China. Comprehensive ophthalmic examinations and basic systemic examinations were evaluated. A questionnaire survey containing information about children, as well as parents’ information, was sent to the corresponding parents of eligible children. The prevalence of strabismus and its 95% confidence interval was estimated. Univariate and multivariate logistic regression analyses were conducted to determine the associated risk factors.Results: A total of 1942 eligible grade one students were enrolled, of which 1856 participants completed all examinations. The average age was 6.83±0.46 years, 53% of participants were boys and 1762 were the Tibetan Minority. Over all, the prevalence of strabismus was 68/1856 (3.7%) (95%CI: 2.81,4.52), with no difference between the ages, genders, ethnicities and body mass index, while tilting one's head when writing may be a risk factor for strabismus (P=0.004). Strabismus students had mean best corrected visual acuity of 0.16±0.28(LogMAR), over 50% patients with esotropia were hyperopic, and participants who had stereopsis impairments showed a significant difference between esotropia and exotropia (P=0.026).Conclusions: The prevalence of strabismus in LCES was 3.7%, which is higher than previous reports from Chinese childhood epidemiology studies. Strabismus is a common contributing factor to amblyopia. Tilting one's head when writing may be a risk factor. Esotropia is more likely to affect stereopsis and be associated with the refractive state of hyperopia. Trial registration: The study has finished the clinical registration on Chinese Clinical Trial Registry. (http://www.chictr.org.cn , ChiCTR1900026693).

scholarly journals Prevalence and associated risk factors for childhood strabismus in Lhasa, Tibet, China: a cross-sectional, school-based study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Hailong He ◽  
Jing Fu ◽  
Zhaojun Meng ◽  
Weiwei Chen ◽  
Lei Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Primary Schools ◽  
Clinical Trial Registry ◽  
Cross Sectional ◽  
Link Type ◽  
School Based ◽  
Significant Difference ◽  
Associated Risk Factors ◽  
Grade One

Abstract Background To estimate the prevalence of strabismus and associated risk factors among grade one school children in Lhasa, Tibet, China. Methods The Lhasa Childhood Eye Study (LCES) was a cross-sectional, school-based childhood study conducted in Grade one students from primary schools in Lhasa, Tibet, China. Comprehensive ophthalmic examinations and basic systemic examinations were evaluated. A questionnaire survey containing information about children, as well as parents’ information, was sent to the corresponding parents of eligible children. The prevalence of strabismus and its 95% confidence interval was estimated. Univariate and multivariate logistic regression analyses were conducted to determine the associated risk factors. Results A total of 1942 eligible grade one students were enrolled, of which 1856 participants completed all examinations. The average age was 6.83 ± 0.46 years, 53% of participants were boys and 1762 were the Tibetan Minority. Over all, the prevalence of strabismus was 68/1856 (3.7%) (95%CI: 2.81,4.52), with no difference between the ages, genders, ethnicities and body mass index, while tilting one’s head when writing may be a risk factor for strabismus (P = 0.004). Strabismus students had mean best corrected visual acuity of 0.16 ± 0.28(LogMAR), over 50% patients with esotropia were hyperopic, and participants who had stereopsis impairments showed a significant difference between esotropia and exotropia (P = 0.026). Conclusions The prevalence of strabismus in LCES was 3.7%, which is higher than previous reports from Chinese childhood epidemiology studies. Strabismus is a common contributing factor to amblyopia. Tilting one’s head when writing may be a risk factor. Esotropia is more likely to affect stereopsis and be associated with the refractive state of hyperopia. Trial registration The study has finished the clinical registration on Chinese Clinical Trial Registry. (http://www.chictr.org.cn, ChiCTR1900026693).

scholarly journals Prevalence and associated risk factors for childhood strabismus in Lhasa, Tibet, China: a cross-sectional, school-based study

2020 ◽  
Author(s):  
Hailong He ◽  
Jing Fu ◽  
Zhaojun Meng ◽  
Weiwei Chen ◽  
Lei Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Primary Schools ◽  
Cross Sectional ◽  
School Based ◽  
Significant Difference ◽  
The Mean ◽  
Associated Risk Factors ◽  
Grade One ◽  
Epidemiology Studies

Abstract Background: To estimate the prevalence of strabismus and associated risk factors among grade one school children in Lhasa, Tibet, China.Methods: The Lhasa Childhood Eye Study (LCES) was a cross-sectional, school-based childhood study conducted in Grade one students from primary schools in Lhasa, Tibet, China. Comprehensive ophthalmic examinations and basic systematic examinations were evaluated. A questionnaire survey contained information about children, as well as parents’ information was sent to the corresponding parents of eligible children. The prevalence of strabismus and its 95% confidence interval was estimated. Univariate and multivariate logistic regression analyses were conducted to determine the associated risk factors.Results: A total of 1942 eligible grade one students were enrolled, of which 1856 participants completed all procedures. The average age was 6.83±0.46 years, 53% of participants were boys and 1762 were the Tibetan Minority. Over all, the prevalence of strabismus was 68/1856(3.7%) (95%CI: 2.81,4.52), with no difference between the ages, genders, ethnics and BMI, while tilt one's head when writing may be a risk factor for strabismus (P=0.004). Strabismus students had the mean best corrected visual acuity 0.16±0.28(LogMAR), over 50% patients with esotropia are hyperopia, participants who have stereopsis impairments showed a significant difference between esotropia and exotropia (P=0.026).Conclusions: The prevalence of strabismus in LCES was 3.7%, higher than previous reports from Chinese childhood epidemiology studies. Strabismus is a common contributing factor to amblyopia. Tilt one's head when writing may be a risk factor. Patients with esotropia are more likely to affect stereopsis and be the refractive state of hyperopia.

scholarly journals Prevalence and associated risk factors for childhood strabismus in Lhasa, Tibet, China: a cross-sectional, school-based study

2020 ◽  
Author(s):  
Hailong He ◽  
Jing Fu ◽  
Zhaojun Meng ◽  
Weiwei Chen ◽  
Lei Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Primary Schools ◽  
Cross Sectional ◽  
School Based ◽  
Significant Difference ◽  
The Mean ◽  
Associated Risk Factors ◽  
Grade One ◽  
Epidemiology Studies

Abstract Background: To estimate the prevalence of strabismus and associated risk factors among grade one school children in Lhasa, Tibet, China. Methods: The Lhasa Childhood Eye Study (LCES) was a cross-sectional, school-based childhood study conducted in Grade one students from primary schools in Lhasa, Tibet, China. Comprehensive ophthalmic examinations and basic systematic examinations were evaluated. A questionnaire survey contained information about children, as well as parents’ information was sent to the corresponding parents of eligible children. The prevalence of strabismus and its 95% confidence interval was estimated. Univariate and multivariate logistic regression analyses were conducted to determine the associated risk factors. Results: A total of 1942 eligible grade one students were enrolled, of which 1856 participants completed all procedures. The average age was 6.83±0.46 years, 53% of participants were boys and 1762 were the Tibetan Minority. Over all, the prevalence of strabismus was 68/1856(3.7%) (95%CI: 2.81,4.52), with no difference between the ages, genders, ethnics and BMI, while tilt one's head when writing may be a risk factor for strabismus ( P =0.004). Strabismus students had the mean best corrected visual acuity 0.16±0.28(LogMAR), over 50% patients with esotropia are hyperopia, participants who have stereopsis impairments showed a significant difference between esotropia and exotropia ( P= 0.026). Conclusions: The prevalence of strabismus in LCES was 3.7%, higher than previous reports from Chinese childhood epidemiology studies. Strabismus is a common contributing factor to amblyopia. Tilt one's head when writing may be a risk factor. Patients with esotropia are more likely to affect stereopsis and be the refractive state of hyperopia.

scholarly journals Prevalence and Associated Risk Factors of Typhoid Fever in Children Attending “Deo Gratias” Hospital in Douala, Littoral Region

2020 ◽  
Author(s):  
Teh Exodus Akwa ◽  
Nguimbous Simone
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Typhoid Fever ◽  
Communicable Disease ◽  
Control Strategies ◽  
Salmonella Typhi ◽  
Health Concern ◽  
Cross Sectional ◽  
Significant Difference ◽  
Associated Risk Factors

Typhoid fever is a communicable disease transmitted by the bacteria Salmonella typhi, related to serotype paratyphi A, B and C. The disease is of a significant health concern in most developing countries especially Cameroon. Objectives: The study aimed at determining the prevalence and associated risk factors of typhoid fever in children ( 0-18 years) attending the “Deo Gratias” hospital in Douala. Method: A hospital base cross sectional study from August to September 2018 was carried out in patients’ age 0-18 years suffering from typhoid fever at the Deo gratias Catholic hospital. Widal slide agglutination test was the diagnostic test used. Positive tested patients were administered questionnaires to evaluate the level of knowledge, attitude and practice toward the disease, as well as their self-management abilities. Data obtained from respondents was analysed by descriptive statistics. One-way ANOVA and means comparison using Tukey’s test (α = 0.05) was performed to check whether the population of respondents differed significantly across risk factor practices. Results were finally presented on bar charts, tables and pie chart. Results: Typhoid fever was more prevalent in females (52.3%) than in males (47.7%), with a high proportion in the ages 5-9 years (38.6%). A significant difference was observed in population of respondents across risk factor practices. Conclusion: Water quality have a great impact on the burden of typhoid fever among children. The identification of risk factors associated to the disease is of great importance in the development of rational control strategies of the disease.

scholarly journals Prevalence of dysmenorrhoea, associated risk factors and its relationship with academic performance among graduating female university students in Ethiopia: a cross-sectional study

BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e043814
Author(s):  
Mesfin Tadese ◽  
Andargachew Kassa ◽  
Abebaw Abeje Muluneh ◽  
Girma Altaye
Keyword(s):  
Risk Factors ◽  
Academic Performance ◽  
University Students ◽  
Cross Sectional Study ◽  
Secondary Outcome ◽  
Sectional Study ◽  
Cross Sectional ◽  
Grade Point ◽  
Significant Difference ◽  
Associated Risk Factors

ObjectivesThe study aimed to provide an association between dysmenorrhoea and academic performance among university students in Ethiopia. Further, the study attempts to determine the prevalence and associated risk factors of dysmenorrhoea.Design and methodInstitution-based cross-sectional study was conducted from 1 April to 28 April 2019. A semistructured and pretested self-administered questionnaire was used to collect data. Binary logistic regression analysis and one-way analysis of variance were performed to model dysmenorrhoea and academic performance, respectively.Setting and participantsEthiopia (2019: n=647 female university students).OutcomesThe primary outcome is dysmenorrhoea, which has been defined as painful menses that prevents normal activity and requires medication. The self-reported cumulative grade point average of students was used as a proxy measure of academic performance, which is the secondary outcome.ResultsThe prevalence of dysmenorrhoea was 317 (51.5%). The educational status of father (adjusted OR (AOR) (95% CI) 2.64 (1.04 to 6.66)), chocolate consumption (AOR (95% CI) 3.39 (95% 1.28 to 8.93)), daily breakfast intake (<5 days/week) (AOR (95% CI) 0.63 (0.42 to 0.95)), irregular menstrual cycle AOR (95% CI) 2.34 (1.55 to 3.54)) and positive family history of dysmenorrhoea AOR (95% CI) 3.29 (2.25 to 4.81)) had statistically significant association with dysmenorrhoea. There was no statistically significant difference in academic performance among students with and without dysmenorrhoea (F (3611)=1.276, p=0.28)).ConclusionsDysmenorrhoea was a common health problem among graduating University students. However, it has no statistically significant impact on academic performance. Reproductive health officers should educate and undermine the negative academic consequences of dysmenorrhoea to reduce the physical and psychological stress that happens to females and their families.

scholarly journals PREVALENCE OF BOVINE FACIOLOSIS IN HALABA MUNICIPAL ABATTOR SOUTHERN ETHIOPIA

2016 ◽  
Vol 4 (11) ◽  
pp. 82-91
Author(s):  
Muna Abdella ◽  
WubitTafese Mhatebu
Keyword(s):  
Risk Factors ◽  
Body Condition ◽  
Cross Sectional Study ◽  
Control Measures ◽  
Southern Ethiopia ◽  
Multivariable Logistic Regression Analysis ◽  
Cross Sectional ◽  
Significant Difference ◽  
Prevention And Control Measures ◽  
Associated Risk Factors

A cross-sectional study was carried out from November 2015 to march 2016 on bovine fasciolosis, to assess the abattoir based prevalence, predominant species of bovine fasciolosis and associated risk factors of the disease in cattle slaughtered in Halaba municipal abattoir. A total of 384 cattle were examined using post mortem examination. Infection rates were (3.64%), 2.34%, 2.08%, and 1.82 % F. gigantic, F. hepatica, mixed and immature respectively with the overall prevalence of 9.88 % (38). F. gigantic was found to be the most prevalent species in cattle of the study area. Multivariable logistic regression analysis showed that the risk of fasciola infection was significantly higher in poor body condition animals than in medium and good body condition animals (p < 0.05). However, in terms of age, sex and breed, no statistically significant difference was found between infected animals (p > 0.05).The present study showed that bovine fasciolosis is one of the important pathogens in cattle in the study area and warrants appropriate disease prevention and control measures and further epidemiological investigations to determine the different agro ecological risk factors on the occurrence of the disease.

scholarly journals Schistosomiasis and Associated Risk Factors Among School-Aged Children in Northern Nigeria

2020 ◽  
Vol 4 (2) ◽  
pp. 103-111
Author(s):  
Musa M. Dogara ◽  
Saadatu Ahmad ◽  
Babalola J. Balogun ◽  
Salwa S. Dawaki ◽  
Muzammil B. Mustapha ◽  
...  
Keyword(s):  
Risk Factors ◽  
Primary Schools ◽  
Cross Sectional Study ◽  
Northern Nigeria ◽  
Preventive Chemotherapy ◽  
Cross Sectional ◽  
Creative Commons ◽  
School Aged Children ◽  
Intestinal Schistosomiasis ◽  
Associated Risk Factors

Background: The Jigawa State Ministry of Health in Northern Nigeria undertook a pilot intervention without a follow-up to control schistosomiasis through preventive chemotherapy by ensuring that each child swallows praziquantel from 2009 to 2013 in five primary schools in Dutse metropolis. Previously, the overall prevalence for urinary and intestinal schistosomiasis determined using Sedimentation and Kato Katz methods was 22.9%. Methods: A cross sectional study involving 150 randomly selected pupils, aged 6 - 15 years old was conducted using sedimentation and Kato-Katz methods to determine the prevalence of urinary and intestinal schistosomiasis respectively in three schools in July, 2018. Information on demographic and associated risk factors was collected using a structured questionnaire and the data generated was analyzed using SPSS statistics version 18.0. Results: The overall prevalence was 10% with S. haematobium 8%, S. mansoni 2.67% and co-infection 0.67%. Males had higher prevalence, 15.10% than females 1.75%. The 11 - 15 years age group had higher prevalence, 10.10% than 6 - 10 years, 9.68%. Nearly all the infections occurred among class 4-6 pupils with 12.10% and 2.94% in 1-3. Based on parental occupations, children of unskilled laborer had the highest prevalence of 16.67% followed by children of civil servants 12.50%, and children of butchers 0%. Kachi School had the highest prevalence of 14.00% while Sir Muhammadu Sunusi had the lowest 4.00%. Schistosomiasis prevalence was found only to be significantly associated with gender; higher among males than females (15.1% vs 1.75%, P = 0.011). Conclusion and Implications for Translation: Schistosomiasis is still endemic among school-aged children in Dutse metropolis, but with a drop in overall prevalence from 22.9% to 10.00%. Chemotherapy and health education should be sustained on both in and out of school-aged children in order to control the transmission. Key words: • Schistosomiasis • Tropical diseases • Northern Nigeria • Chemotherapy• School-aged Children • Kato - Katz • Sedimentation   Copyright © 2020 Dogara et al. Published by Global Health and Education Projects, Inc. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in this journal, is properly cited.

scholarly journals Seroprevalence of Trypanosoma evansi infections among dromedary camels (Camelus dromedaries) in North Al-Sharqiya governorate, Sultanate of Oman

2021 ◽  
Vol 26 (2) ◽  
pp. 51-55
Author(s):  
A.H. Al-Kharusi ◽  
E. I. Elshafie ◽  
K.E. M. Ali ◽  
R. AL-Sinadi ◽  
Baniuraba N. ◽  
...  
Keyword(s):  
Risk Factors ◽  
Binary Logistic Regression ◽  
Trypanosoma Evansi ◽  
Sultanate Of Oman ◽  
Dromedary Camels ◽  
Serum Samples ◽  
Cross Sectional ◽  
Significant Difference ◽  
Circulating Antibodies ◽  
Associated Risk Factors

Trypanosoma evansi is a well-known hemoprotozoa that infects diverse domestic and wild animals worldwide and caused devastating disease called surra. This research aimed to investigate the seroprevalence of Trypanosoma evansi and its associated risk factors in dromedary camels in North Al-Sharqiya governorate in the Sultanate of Oman.  A total of 4364 serum samples was collected from three willayat in north governorates of Sultanate of Oman; Ibra (926, 21.2%), Qabil (1119, 25.6%) and Bidiyah (2319, 53.1%). Samples were examined for the presence of antibodies against T. evansi using card agglutination test (CATT/T. evansi). Binary logistic regression was used to study the association of T. evansi seroprevalence and risk factors such as location, gender, purpose and age of camels. The overall seroprevalence of T. evansi detected by CATT/T. evansi test was 38% (1659/4364, CI: 36.6-39.5%). There was a significant difference (p=0.001) between location and T. evansi seroprevalence, whereas highest seroprevalence was found in Ibra (49.9%, CI: 46.7-53.1%) followed by Bidiyah (35%, CI: 33-36.9%) and Qabil (34.5%, CI: 31.8-37%). Camels from Ibra were almost two times more likely to have circulating antibodies of T. evansi than camels from Bidiyah (OR=1.89, CI: 1.591-2.168). Also, the results showed a significant difference between seroprevalence and sex (p=0.023), whereas the age of camels was not (p>0.05). To our knowledge, this is the first research that indicated that T. evansi antibodies were circulating among camels in Oman, and further research needs to be tackled to study the molecular characterization of T. evansi and its prevalence in other animal species. Furthermore, cross-sectional studies of T. evansi from different regions in Oman warrant further investigation.

scholarly journals Prevalence, infection intensity and associated risk factors of Intestinal Schistosomiasis among primary school Children in Lira District, Northern Uganda

2019 ◽  
Author(s):  
John Paul Byagamy ◽  
Geoffrey Maxwell Malinga ◽  
Harriet Angwech ◽  
Robert Opiro ◽  
Richard Echodu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Primary School ◽  
School Children ◽  
Primary Schools ◽  
Infection Intensity ◽  
Public Health Education ◽  
Primary School Children ◽  
Cross Sectional ◽  
Intestinal Schistosomiasis ◽  
Associated Risk Factors

Abstract Objective: The aim of this cross-sectional study was to determine the prevalence, infection intensity and associated risk factors of intestinal schistosomiasis among primary school children in Lira district, Uganda. The study was conducted among 532 primary school pupils aged 6-16 years from eight randomly selected primary schools (March-May 2017). Stool samples were collected and examined for schistosomiasis using Odongo-Aginya method. Data on socio-demographic characteristics and risk factors were obtained using questionnaires. Results: The overall prevalence of Schistosoma mansoni was 35.7% indicating a moderate infection. Both males and females were equally affected with S. mansoni . Ogur sub county had highest prevalence (42.1%) than others. Akangi and Akano primary schools both had highest (21.1%) prevalence compared to the others. Individuals aged 14-16 and 10-14 years had heavy infections (mean epg) of 600 and 565 eggs, respectively than those aged 6-9 years. With regard to risk factors, source of drinking water, sub-county location and primary school were associated with infection. Participants who fetch water from spring (85,44.7%) had higher infection than those who fetch from other sources. The study recommends provision of safe water, periodic treatment of school-aged children with praziquantel and public health education to reduce prevalence of S. mansoni .

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