SM Journal of Public Health & Epidemiology

Archive Articles

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Hierarchical Model of Factors Associated with Falls in Older Brazilian Community-Dwelling Women

Objective: To estimate the prevalence of falls in a group of older women and to measure the influence of risk factors associated with age.

Methods: Longitudinal study with a representative probability sample of the AGEQOL study (Aging, Gender and Quality of Life). This article is based on 1226 older Brazilian community-dwelling women. Participants were interviewed on falls in past 12 months, demographic and socioeconomic characteristics, health status, functional ability and access to and use of health services. Poisson regression was used to confirm the association of decline in women with possible determinants, separated by age (60-74 years and ≥75 years).

Results: Overall, 250 women (54.2%) had a single fall, and the prevalence of falls was significantly different between age groups (p<0.001). Women aged less than 75 years old who smoked, drank, and reported nausea and imbalance had a higher prevalence of falls. Among the oldest women, a dose-response relationship was present between falls and functional capacity of ADL.

Conclusions: The prevalence of falls differed in each age group of women. For older women aged 60-74 years, the prevalence of falls was associated with self-reported health status and the type of health services used. In addition to performing ADL, worse health conditions, surgeries, and higher education were risk factors associated with a higher prevalence of falls in older women.

Ana Cristina Viana Campos¹*, Andrea Maria Duarte Vargas², Marcella Guimarães Assis³, Denise Vieira Travassos² and Efigenia Ferreira e Ferreira²


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The Use of Neutral Electrolyzed Oxidizing Water for Disinfection of 3.0T MRI Scanner

Introduction: Devices for Magnetic Resonance Imaging (MRI) represent the specific conditions for disinfection. Among the relevant facts include the presence of electronic equipment in a single device that limits the possibility of selecting the appropriate biocide to disinfect the device. Disinfectants of choice are therefore expected to possess properties such as rapid, residue-free action without any damaging effect on the sensitive electronic equipment. The purpose of this study was to determine the reliability of Neutral Electrolyzed Oxidizing Water (NEOW) using two different methods of disinfection on 3.0 T MRI Scanner.

Materials and Methods: The MRI room disinfection was completed by using the sprayer and the method of cold fogging. The presence of micro-organisms before and after the aerosolization was recorded with the help of sedimentation andanalyse the total number of Colony-Forming Units CFU. The CFU was evaluated in absolute and log values.

Results: After disinfection we found reduction of microbial NEOW over 90% or more than 1log10 CFU/ cm2. With cold fogging disinfection, we found a reduction in the number of microorganisms by an average of 3.32 log10 CFU/cm2. Based on the results of the experiment we can conclude that with the model of NEOW Steriplant®N in practical terms we can see over 90% reduction of microorganisms (> 1log10 CFU/cm2) on MRI. The use of NEOW proved to be efficient and safe in all applied ways. Also, no eventual damage to exposed devices or staff was recorded.

Discussion: The use of the biocide aerosol Steriplant®N in practical terms in prepared space in which substantially reduces the burden of microorganisms. We believe that this helps to establish a bio-security between operational and diagnostic interventions. Considering the fact that the biocide aerosolization needs 6-8 ml of biocide solution / 1m3 can reach very small amounts of disinfectant effects on equipment.

Ana Cristina Viana Campos¹*, Andrea Maria Duarte Vargas², Marcella Guimarães Assis³, Denise Vieira Travassos² and Efigenia Ferreira e Ferreira²


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Heart Disease Mortality in Appalachian Coal Mining Counties

Background: Earlier examinations of mortality patterns in West Virginia found higher total mortality in coal mining compared to non-coal mining counties. The objective is to further explore these findings and determine whether heart disease mortality in West Virginia is associated with coal mining or other factors.

Methods: West Virginia county Specific Standardized Mortality Ratios (SMRs) were calculated and base (sex, age group and time period-adjusted) and covariate-adjusted (base + income, smoking, and obesity) SMR models were computed for cumulative total, surface, and underground coal production. Models were also stratified by dichotomous versions of income, smoking, and obesity.

Results: Median income, obesity, and smoking were all found to be statistically significant predictors of heart disease SMRs and were also found to have statistically significant interactions with coal production. Specifically, SMRs generally increased as median income decreased in mining counties, and SMRs generally increased as obesity increased in mining counties. The same relationships were not evident in non-mining counties. Additionally, SMRs were elevated in the highest two quartiles of coal production in counties with high smoking prevalence.

Conclusion: SMRs for heart disease were elevated in the highest levels of total, surface and underground coal production compared to the state population. Further research should examine the relationship between coal-mining and heart disease at the individual level.

Lauren C Balmert¹*, Ada O Youk¹, Shannon M Woolley¹, Evelyn O Talbott² and Jeanine M Buchanich¹ 


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Should-We-Ban-the-Use-of-Last-Observation-Carried-Forward-Analysis-in-Epidemiological-Studies

Whenever patients are involved in research, the occurrence of missing information is inevitable. Examples of missing data include missing data points, as in incomplete forms, or loss of entire follow-ups due to patient attrition

Shoop SJW*


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Could a Chronobiological Approach have a Role in Falls Prevention?

T he sentence “inadvertently coming to rest on the ground, floor or other lower level, excluding intentional change in position to rest in furniture, wall or other objects” defines accidental falls

López-Soto PJ¹, Rodríguez-Borrego MA¹, De Giorgi A² and Fabbian F²*