scholarly journals Ergonomic Analysis of the Neck Posture in Computer Users and Identifying the Related Risk Factors

Author(s):  
Hamidreza Heidari ◽  
Shahram Arsang ◽  
Maryam Mahmoodi ◽  
Fatemeh Ramezani

Background:Neck disorder is a common complaint in computer users which affects the task performance and fatigue. Several studies confirmed the relation between neck discomfort and working with a computer. But focusing on the root risk factors inducing neck discomfort can be applied for taking preventive measures and improving workstation design. So, the main purpose of this study was the neck posture analysis in computer users and identifying the related risk factors. Methods:This descriptive-analytical study was performed in 2018 on 169 administrative staff in one of the governmental hospitals in Qom. A researcher-made questionnaire was used to investigate neck discomfort and related risk factors. To determine the angle of the neck, photographic analysis method was used. Finally, SPSS software version 22 and appropriate statistical tests including the logistic regression model, two independent t-test, and chi-square test in contingency tables were used to determine the relationship between individual parameters and workstation with neck angles and neck pain. Results:The results showed that two factors of the height (p= 0.023) and the gender (p= 0.012) had a direct statistically significant association with neck disorder statistically. In addition, the anthropometric dimensions, monitor height from desk level was positively correlated with neck discomfort but sitting elbow to eye height was negatively correlated with neck discomfort (p<0.05). Odds Ratio analysis showed that moderate and severe monitor angle compared to neutral posture (monitor angle less than 10 °) can increase neck discomfort as 1.925 and 3.137, respectively. Conclusion: Generally, it can be concluded that workstation design can affect taking a posture in computer users. So, establishing correct workstation criteria such as eye height, monitor height from desk level and sitting elbow to eye height dimensions are very important. However, determination of the proportion of each parameter effect is strongly recommended for other investigations. This can develop preventive measures for reducing neck awkward postures.

2020 ◽  
Author(s):  
Yaosen Chen ◽  
Mohamed AM ◽  
WANG Jinbo ◽  
ZHENG Ziwei ◽  
Maher Al-balaa ◽  
...  

Abstract Background The composite attachment loss during orthodontic clear aligner therapy is an adverse event that commonly happens in our daily practice. However, there is a lack of related statistical analysis, and studies analyzing the related risk factors. Therefore, the aim of this study is to assess the incidence of attachment loss during orthodontic clear aligner therapy and to identify rick factors that may predict such event.Methods The demographics and clinical variables of 94 patients undergoing clear aligner therapy (27 males and 67 females; average age: 27.60± 0.86 years) were recorded. Both patient-related and tooth-related attachment loss was recorded. The chi-square test and logistic regressive analysis were applied to identify the potential risk factors. SPSS for Mac (version 23.0, IBM, USA) was used for statistical analyses. P<0.05 was considered statistically significant. Results Our study suggested that the risk factors for attachment loss include: frequent aligner removal (>= 5 times a day) (losing rate=60.0%, P=0.005); aligner wear time less than 18 hours a day (losing rate=50.8%, P=0.014); eating without aligners inserted (losing rate=47.9%, P=0.034); utilizing aligner tray seaters (losing rate=48.2%, P=0.006) and unilateral mastication (losing rate=52.1%, P=0.002). The multivariable logistic regression analysis indicates that aligner wear time less than 18 hours a day (P=0.020, B=0.925), using aligner tray seaters (P=0.007, B=1.168) and unilateral mastication (P=0.034, B=-0.458) were considered independent factors that can predict the composite attachment loss in orthodontic clear aligner therapy.Conclusion Wearing aligner less than 18 hours a day, using aligner tray seaters and unilateral mastication may contribute to increased incidence of composite attachment loss during orthodontic clear aligner therapy.


Author(s):  
Sang Park ◽  
Myunghwan Jung ◽  
Joo Sung

Though the overall incidence of occupational injuries and accidents has decreased, they continue to happen. Many associated factors are known and managing them with limited resources is difficult. This study evaluates related risk factors and prioritizes their management for reducing occupational injuries and accidents at the workplace. We used data from the 4th Korean Working Condition Survey conducted by the Korea Occupational Safety Health Research Institute from June to September 2014. A total of 14,381 persons (9776 men, 4605 women) were selected; t-test, chi-square test, and logistic regression analyses were performed to analyze data. The influence of physical (vibration, noise, abnormal temperature) and musculoskeletal (awkward posture, handling of heavy objects, repetitive tasks) factors was compared according to gender and company size. The risk of occupational injuries and accidents among men was related to musculoskeletal factors and vibration in companies with “under 50” employees and with awkward posture, vibration, and noise in companies with “50 or above” employees; however, among women in companies with “under 50” employees, it was associated with only vibration. Although we evaluated only a few risk factors, prioritizing them based on gender and company size has provided new valuable information.


Author(s):  
Yusuf Ridwan ◽  
Ardilasunu Wicaksono ◽  
Siti Vanessa Fransiska ◽  
Princesse Theresa

Hookworms infection remains as an important parasitic infections affecting animal and human health worldwide. However, information on the prevalence and the risk factors of hookworm infection on dogs in Indonesia is very limited. A cross sectional study to estimate the prevalence and to identify risk factors of hookworms infection on dogs was conducted in rural area with different topography, Sukabumi Regency, Indonesia. A Total of 204 dog stool specimens were examined for hookworm eggs using simple flotation methods. The data of related risk factors namely type of topography area (high and low land), purpose of having dog, dog demography, dog reared management and deworming were collected through dog owners interview’s with completed a questionnaire. Those data were analyzed using the chi-square test (χ2) and logistic regression. The prevalence of hookworm on dogs in Sukabumi was 24.5 % (95% Confidence Interval [CI]=19.1-30.8). This prevalence was associated with topography of the area, the age of dog, and type of dog keeping methods. The prevalence of hookworms was higher in the high land area than low land area (OR=5.935, 95% CI=2.764-12.744 ). Logistic regression identified pupies as a high risk group to hookworms infection (OR= 2.041, 95%CI=1.035-4.055). The dog which kept in the cage/tied had higher risk than free roaming dog (OR=3.66, 95%CI=1.479-9.091).Key words: Dog, hookworms, prevalence, risk factors, Sukabumi.


Author(s):  
Jesús Alberto Mendoza ◽  
Yanedt Vera ◽  
Luis Carlos Peña

Mastitis prevalence, associated microorganisms and related risk factors were determined in dairy operations from municipalities belonging to the province of Pamplona (Norte de Santander). California Mastitis Test (CMT) was performed in 1208 quarters from 302 animals located in 108 rural properties. Milk samples from positive quarters (trace up to 3+) were obtained and submitted for microbiological isolation. Analysis of a 64 variables survey related to the milking practices in the rural properties under study and its link with the presence of the disease was performed using contingency charts and chi-square test (χ2). Determined prevalence per individual was 54,6% (165/302)  (95% CI 48.8 to 60.3) CMT positive animals. In 67,6% (73/108) (95% CI 58.3 to 75.7) of the rural properties the presence of at least one animal testing positive was detected, whereas a total of 21,6% quarters (260/1208) (95% CI 19.3 to 23.9) showed CMT reactivity. From the samples subjected to isolation and microbiological characterization, a total of 74.4% were compatible with Staphylococcus aureus, 12.3% with Streptococcus agalactiae and 13.3% with coliforms. A total of 17 characteristics were associated with the presence of mastitis, all of which were related to poor milking practices. The presence of contagious mastitis associated microorganisms, shows the need for training and orientation to implement proper milking practices and enhance the competitiveness of this sector in the region, which will result in an increase in production.


2018 ◽  
Vol 1 (1) ◽  
pp. 34
Author(s):  
Ni Nyoman Novita ◽  
Gusman Arsyad

Implementation of IMD in hospitals has decreased from the previous year and has not reached the target set by the government. Some IMD implementation processes have not been carried out according to applicable standards. So that babies do not get an IMD in accordance with existing SOPs. The purpose of this study was to determine the determinant factors associated with the implementation of the IMD by midwives in the Midwifery and Maternity Room Emergency Room (IGD) at the Anutapura General Hospital in Palu. This research method is analytical with cross sectional approach. The population of this study was that all midwives in the obstetrics emergency room and maternity room at Anutapura Palu Hospital were 37 respondents. The sample in this study is total sampling. The analysis used was univariate, and bivariate analysis using the chi square test with a confidence level of 95% (α = 0.05). The results of statistical tests on variable knowledge of midwives with the implementation of IMD p value: 0.018 (p value <0.05). APN training with the implementation of IMD p value: 0.697 (p value> 0.05). length of work with the implementation of IMD p value: 0.029 (p value <0.05). and peer support with the implementation of IMD p value: 0.007 (p value <0.05). Conclusions there is a relationship between knowledge, length of work, peer support with the implementation of the IMD, and training factors that have nothing to do with IMD implementation. The strongest factor in the relationship is peer support. It is recommended that the Anutarapura Palu Hospital be able to motivate midwives so that they can further enhance their role in the implementation and provide support to their colleagues so that the implementation of the IMD can be carried out in accordance with applicable standards.Keywords: Knowledge, APN Training, Duration of work, Implementation of IMD


Author(s):  
Hongzheng Lu ◽  
Fereydoun Aghazadeh

This study examined important risk factors and their interactions associated with physical symptoms reported by VDT users. A research model was developed. A survey was designed and conducted among 88 computer users. The results show that risk factors associated with various physical symptoms are different. Screen glare, awkward working posture, and fatigue are important factors related to physical symptoms. Psychosocial factors significantly interact with other variables, such as demographics variables, and contribute to awkward work posture and psychological stress. Workstation design variables significantly affect working postures.


2008 ◽  
Vol 19 (1) ◽  
pp. 34-39 ◽  
Author(s):  
Carlos Estrela ◽  
Cláudio Rodrigues Leles ◽  
Augusto César Braz Hollanda ◽  
Marcelo Sampaio Moura ◽  
Jesus Djalma Pécora

The aim of this study was to assess the prevalence and risk factors of apical periodontitis in endodontically treated teeth in a selected population of Brazilian adults. A total of 1,372 periapical radiographs of endodontically treated teeth were analyzed based on the quality of root filling, status of coronal restoration and presence of posts associated with apical periodontitis (AP). Data were analyzed statistically using odds ratio, confidence intervals and chi-square test. The prevalence of AP with adequate endodontic treatment was low (16.5%). This percentage dropped to 12.1% in cases with adequate root filling and adequate coronal restoration. Teeth with adequate endodontic treatment and poor coronal restoration had an AP prevalence of 27.9%. AP increased to 71.7% in teeth with poor endodontic treatment associated with poor coronal restoration. When poor endodontic treatment was combined with adequate coronal restoration, AP prevalence was 61.8%. The prevalence of AP was low when associated with high technical quality of root canal treatment. Poor coronal restoration increased the risk of AP even when endodontic treatment was adequate (OR=2.80; 95%CI=1.87-4.22). The presence of intracanal posts had no influence on AP prevalence.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Hailegebriel Wondimu ◽  
Zelalem Addis ◽  
Feleke Moges ◽  
Yitayal Shiferaw

Background. Transfusion associated bacterial infection has remained more frequent with a sever risk of morbidity and mortality. This study assessed the bacteriological safety of blood collected for transfusion. Method. A cross-sectional study was conducted at University of Gondar hospital blood bank from December 2011 to June 2012. Bacterial isolation, identification, and antimicrobial susceptibility tests were done as per the standard procedure. Chi-square test and P value were used to assess associations between risk factors and the bacterial isolation rate. Results. Twenty-one (15.33%) blood units were found contaminated with bacteria, and 95.24% contamination was due to external sources. The commonly isolated bacteria were Staphylococcus aureus, Coagulase negative Staphylococci, Escherichia coli, Klebsiella species, Streptococci species, Enterobacter species, and Citrobacter species. All of the bacteria isolated were 100% sensitive to Gentamicin, Chloramphenicol, Amoxicillin, and Doxycycline. Multiple antimicrobial resistances were observed in 66.7% of the isolates. Not using glove by phlebotomist, touching disinfected phlebotomy site and double puncture at the same hand or both hands of a donor were found to be risk factors for bacterial contamination. Conclusion. Bacterial contamination of blood to be transfused is a common problem in the hospital. So attention should be given to activities performed at the blood bank for safe transfusion practices.


Author(s):  
T. G. Svetlichnaya ◽  
A. S. Mityagina ◽  
T. M. Burkova ◽  
N. M. Ogorelkova

Relevance. The high prevalence of tooth decay requires investigation of its risk factors. The aim was to study tooth decay risk factors among six-year-old children according to the level of dental health (based on parents’ assessment).Materials and methods. The research evaluated the dental health of six-year-olds and factors defining their oral health; The study surveyed 515 parents of six-year-old children from 7 kindergartens in Arkhangelsk. Pearson chi-square test assessed the differences in the frequency of tooth decay factors among six-year-old children according to the level of dental health. The accepted significance level was 0.05.Results. The Arkhangelsk parents evaluated the dental health of their six-year-olds as relatively favourable: good (41.2%) and satisfactory (46.6%). Only 9.5% of children had poor health. Children generally had good oral hygiene skills: 86.8% liked brushing their teeth; 60.2% squeezed the optimal amount of toothpaste on the toothbrush; 56.7% brushed their teeth twice a day. The dental literacy of parents was satisfactory: 67.0% purchased toothpaste for children; 90.8% considered necessary to treat primary teeth; 69.2% replaced toothbrush every three months; 59.7% visited a pediatric dentist twice a year. The children with poor dental health had insufficient oral hygiene skills: 46.9% did not like teeth cleaning; 51.1% brushed their teeth once a day. Their diet was not healthy: 100.0% did not eat hard food; 65.3% frequently consumed sweets. The parents  of children with poor dental health had low medical literacy and poor oral hygiene: 46.9% did not know that treatment of primary teeth was necessary; 42.9% considered the treatment of primary teeth as unnecessary; 32.6% purchased whatever toothpaste. The general negative trend is to use toothpaste without fluoride (68.1%).Conclusions. The results of the study demonstrated a significantly higher frequency of cariogenic factors in children with poor dental health.


2021 ◽  
Vol 23 (11) ◽  
pp. 381-401
Author(s):  
Umar Abdullahi Tawfiq ◽  
◽  
Shohaimi Shamarina ◽  
Syafinaz Amin Nordin ◽  
Mohd Noor Hisham Mohd Nadzir ◽  
...  

Typhoid is a life-threatening disease that has remained endemic in parts of Africa and Asia where its burden is elevated by the inefficiency of control efforts which have been hampered by lack of epidemiological data, among others. In Nigeria, such data is absent in most of the States like Gombe where the disease has been rife for a long time, hence, to bridge that knowledge gap, this study was set up to determine the host-associated risk factors for typhoid occurrence and recurrence in Gombe. A questionnaire that was designed and validated for this location was used to obtain data from 663 respondents using simple random sampling and analyzed using the Chi-square test for association and binomial logistic regression to obtain risk factors for typhoid occurrence and recurrence, respectively. The study revealed that occurrences were statistically significantly associated with the variables for vaccination (χ2 = 39.729, p < 0.01), having houseboy/girl (χ2 = 16.909, p < 0.01), typhoid patient at home (χ2 = 13.393, p < 0.01), hand washing before handling food (χ2 = 22.856, p < 0.01), consuming iced/frozen items (χ2 = 16.805, p < 0.01), boiling drinking water (χ2 = 49.633, p < 0.01), and eating commercially available foods/drinks (χ2 = 27.864, p < 0.01), while recurrences were statistically significantly predicted by „not sure of been vaccinated‟ (OR = 2.962, CI = 1.290 to 6.802, p < 0.01), „not having another typhoid patient at home‟ (OR = 1.799, CI = 0.998 to 3.244, p < 0.01), and „drinking unboiled water sometimes‟ (OR = 2.130, CI = 1.023 to 4.434, p < 0.01). It is believed that these findings will guide efforts by the Government for health interventions against typhoid in the study area, thus improving the quality of life for the population.


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