385 research outputs found

    The Association of Spatial Accessibility to Health Care Services with Health Utilization and Health Status Among People with Disabilities

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    The purpose of this cross-sectional analysis was to determine the importance of spatial accessibility to health care services utilization and to the health status of persons with disabilities. This study utilizes two datasets (Survey of Access to Outpatient Medical Service in the Rural Southeast and Ohio Family Health Survey) to analyze. ArcGIS 9.2 was use to measure spatial accessibility to health care services. Bivariate analysis for health services utilization and health status included t-tests, and Chi-square, as appropriate for the level of measurement. Logistic regression models identified for the three outcomes (health care visit, regular check up visit, and perceived poor health status). The multivariate analyses of Survey of Access to Outpatient Medical Service in the Rural Southeast dataset revealed that those residing within an area that had a higher primary physician to population ratio were less likely to have made a health care services visit in the past year. Perceived travel time was significantly associated with poor health status adults who had to drive longer to access health care services were more likely to perceive themselves to be in poor health compared to adults who were faced with a shorter drive. The analyses of the Ohio Family Health Survey dataset indicate that participants of the survey who resided within areas that had a higher primary care physician to population ratio were less likely to perceive themselves to be in poor health. Likewise, those residing in areas that had a hospital located within a 30-minute commute were also less likely to report being in poor health. Further analyses of the Ohio Family Health Survey dataset, which is comprised of data collected from urban and rural areas, revealed that those driving longer to access health care services were more likely to perceive themselves to be in poor health compared to adults who were faced with a shorter drive in urban area. The model of rural areas revealed that those residing within an area that had a higher prim

    The Association of Spatial Accessibility to Health Care Services with Health Utilization and Health Status Among People with Disabilities

    Get PDF
    The purpose of this cross-sectional analysis was to determine the importance of spatial accessibility to health care services utilization and to the health status of persons with disabilities. This study utilizes two datasets (Survey of Access to Outpatient Medical Service in the Rural Southeast and Ohio Family Health Survey) to analyze. ArcGIS 9.2 was use to measure spatial accessibility to health care services. Bivariate analysis for health services utilization and health status included t-tests, and Chi-square, as appropriate for the level of measurement. Logistic regression models identified for the three outcomes (health care visit, regular check up visit, and perceived poor health status). The multivariate analyses of Survey of Access to Outpatient Medical Service in the Rural Southeast dataset revealed that those residing within an area that had a higher primary physician to population ratio were less likely to have made a health care services visit in the past year. Perceived travel time was significantly associated with poor health status adults who had to drive longer to access health care services were more likely to perceive themselves to be in poor health compared to adults who were faced with a shorter drive. The analyses of the Ohio Family Health Survey dataset indicate that participants of the survey who resided within areas that had a higher primary care physician to population ratio were less likely to perceive themselves to be in poor health. Likewise, those residing in areas that had a hospital located within a 30-minute commute were also less likely to report being in poor health. Further analyses of the Ohio Family Health Survey dataset, which is comprised of data collected from urban and rural areas, revealed that those driving longer to access health care services were more likely to perceive themselves to be in poor health compared to adults who were faced with a shorter drive in urban area. The model of rural areas revealed that those residing within an area that had a higher prim

    The Association of Spatial Accessibility to Health Care Services with Health Utilization and Health Status Among People with Disabilities

    Get PDF
    The purpose of this cross-sectional analysis was to determine the importance of spatial accessibility to health care services utilization and to the health status of persons with disabilities. This study utilizes two datasets (Survey of Access to Outpatient Medical Service in the Rural Southeast and Ohio Family Health Survey) to analyze. ArcGIS 9.2 was use to measure spatial accessibility to health care services. Bivariate analysis for health services utilization and health status included t-tests, and Chi-square, as appropriate for the level of measurement. Logistic regression models identified for the three outcomes (health care visit, regular check up visit, and perceived poor health status). The multivariate analyses of Survey of Access to Outpatient Medical Service in the Rural Southeast dataset revealed that those residing within an area that had a higher primary physician to population ratio were less likely to have made a health care services visit in the past year. Perceived travel time was significantly associated with poor health status adults who had to drive longer to access health care services were more likely to perceive themselves to be in poor health compared to adults who were faced with a shorter drive. The analyses of the Ohio Family Health Survey dataset indicate that participants of the survey who resided within areas that had a higher primary care physician to population ratio were less likely to perceive themselves to be in poor health. Likewise, those residing in areas that had a hospital located within a 30-minute commute were also less likely to report being in poor health. Further analyses of the Ohio Family Health Survey dataset, which is comprised of data collected from urban and rural areas, revealed that those driving longer to access health care services were more likely to perceive themselves to be in poor health compared to adults who were faced with a shorter drive in urban area. The model of rural areas revealed that those residing within an area that had a higher prim

    KINETIC PROPERTIES AND EMG ACTIVITY OF NORMAL AND OVER-SPEED PEDALING IN TRACK SPRINT CYCLISTS: A CASE STUDY

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    Track sprint cycling requires unique skills. We investigate the pedaling kinetics and muscle coordination of a male track sprinter (170cm, 65kg, peak power 1513W) to see if they differ from that of a non-sprinter, and if the subject’s own technique vary from normal riding to an under-load maximal cadence sprint. Two trials were collected using 3D motion capture technology. EMG signals of 8 leg muscles were recorded. Joint torque and power of each trial were calculated using a subject specific musculoskeletal model, with realistic pedal forces as input to our dynamic simulation. Flexion torque appears at the knee during its extension, different from the non-sprinters. Joint torque and power appears similar for both trials, but 6 of the 8 muscles showed differences in EMG patterns. These findings could potentially benefit the evolvement of training methods

    The Clinical Investigation of Disparity of Utility Values Associated with Gallstone Disease: A Pilot Study

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    Purpose. The utility evaluation was an effective method to incorporate all of the contributing variables for multiple diseases into one outcome measure. A cross-sectional study was conducted to assess the utility values associated with varying states of gallstone disease among outpatient clinics participants at a teaching hospital in Taipei, Taiwan. Methods. The utility values were measured by using time trade-off method. A total of 120 outpatient clinics participants (30 subjects with no gallstone disease, 30 subjects with single stone, 30 subjects with multiple stones, and 30 subjects with cholecystectomy) evaluated utility values from January 1, 2006 to December 31, 2006. The diagnosis of gallstone disease was performed by a panel of specialists using ultrasound sonography. Results. The overall mean utility value was 0.89±0.13 (95% CI: 0.87–0.91) indicating that study participants were willing to trade about 11% (95% CI: 9–13%) of their remaining life in return for being free of gallstone disease perpetually. The significant associated factors of utility values based on the multiple linear regression analysis were older age and different degrees of gallstone disease. Conclusion. Our results found that in addition to older age, multiple stones and cholecystectomy could influence utility values from the patient’s preference-based viewpoint

    Clinical Study The Clinical Investigation of Disparity of Utility Values Associated with Gallstone Disease: A Pilot Study

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    . Purpose. The utility evaluation was an effective method to incorporate all of the contributing variables for multiple diseases into one outcome measure. A cross-sectional study was conducted to assess the utility values associated with varying states of gallstone disease among outpatient clinics participants at a teaching hospital in Taipei, Taiwan. Methods. The utility values were measured by using time trade-off method. A total of 120 outpatient clinics participants (30 subjects with no gallstone disease, 30 subjects with single stone, 30 subjects with multiple stones, and 30 subjects with cholecystectomy) evaluated utility values from January 1, 2006 to December 31, 2006. The diagnosis of gallstone disease was performed by a panel of specialists using ultrasound sonography. Results. The overall mean utility value was 0.89 ± 0.13 (95% CI: 0.87-0.91) indicating that study participants were willing to trade about 11% (95% CI: 9-13%) of their remaining life in return for being free of gallstone disease perpetually. The significant associated factors of utility values based on the multiple linear regression analysis were older age and different degrees of gallstone disease. Conclusion. Our results found that in addition to older age, multiple stones and cholecystectomy could influence utility values from the patient's preference-based viewpoint

    Ample Pairs

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    We show that the ample degree of a stable theory with trivial forking is preserved when we consider the corresponding theory of belles paires, if it exists. This result also applies to the theory of HH-structures of a trivial theory of rank 11.Comment: Research partially supported by the program MTM2014-59178-P. The second author conducted research with support of the programme ANR-13-BS01-0006 Valcomo. The third author would like to thank the European Research Council grant 33882

    Arrhythmia and other modifiable risk factors in incident dementia and MCI among elderly individuals with low educational levels in Taiwan

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    IntroductionThere is increasing evidence that arrhythmia is a risk factor for dementia; however, it appears that arrhythmia affects the cognitive function of individuals differentially across age groups, races, and educational levels. Demographic differences including educational level have also been found to moderate the effects of modifiable risk factors for cognitive decline.MethodsThis study recruited 1,361 individuals including a group of cognitively unimpaired (CU) individuals, a group of patients with mild cognitive impairment (MCI), and a group of patients with dementia with low education levels. The participants were evaluated in terms of modifiable risk factors for dementia, including arrhythmia and neuropsychiatric symptoms.ResultsCox proportional hazard regression models revealed that among older MCI patients (>75 years), those with arrhythmia faced an elevated risk of dementia. Among younger MCI patients, those taking anti-hypertensive drugs faced a relatively low risk of dementia. Among younger MCI patients, male sex and higher educational level were associated with an elevated risk of dementia. Among CU individuals, those with coronary heart disease and taking anti-lipid compounds faced an elevated risk of MCI and those with symptoms of depression faced an elevated risk of dementia.DiscussionThe risk and protective factors mentioned above could potentially be used as markers in predicting the onset of dementia in clinical settings, especially for individuals with low educational levels

    Mutations in the Salmonella enterica serovar Choleraesuis cAMP-receptor protein gene lead to functional defects in the SPI-1 Type III secretion system

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    Salmonella enterica serovar Choleraesuis (Salmonella Choleraesuis) causes a lethal systemic infection (salmonellosis) in swine. Live attenuated Salmonella Choleraesuis vaccines are effective in preventing the disease, and isolates of Salmonella Choleraesuis with mutations in the cAMP-receptor protein (CRP) gene (Salmonella Choleraesuis ∆crp) are the most widely used, although the basis of the attenuation remains unclear. The objective of this study was to determine if the attenuated phenotype of Salmonella Choleraesuis ∆crp was due to alterations in susceptibility to gastrointestinal factors such as pH and bile salts, ability to colonize or invade the intestine, or cytotoxicity for macrophages. Compared with the parental strain, the survival rate of Salmonella Choleraesuis ∆crp at low pH or in the presence of bile salts was higher, while the ability of the mutant to invade intestinal epithelia was significantly decreased. In examining the role of CRP on the secretory function of the Salmonella pathogenicity island 1 (SPI-1) encoded type III secretion system (T3SS), it was shown that Salmonella Choleraesuis ∆crp was unable to secrete the SPI-1 T3SS effector proteins, SopB and SipB, which play a role in Salmonella intestinal invasiveness and macrophage cytotoxicity, respectively. In addition, caspase-1 dependent cytotoxicity for macrophages was significantly reduced in Salmonella Choleraesuis ∆crp. Collectively, this study demonstrates that the CRP affects the secretory function of SPI-1 T3SS and the resulting ability to invade the host intestinal epithelium, which is a critical element in the pathogenesis of Salmonella Choleraesuis

    Identification of ankle sprain motion from common sporting activities by dorsal foot kinematics data

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    This study presented a method to identify ankle sprain motion from common sporting activities by dorsal foot kinematics data. Six male subjects performed 300 simulated supination sprain trials and 300 non-sprain trials in a laboratory. Eight motion sensors were attached to the right dorsal foot to collect three-dimensional linear acceleration and angular velocity kinematics data, which were used to train up a support vector machine (SVM) model for the identification purpose. Results suggested that the best identification method required only one motion sensor located at the medial calcaneus, and the method was verified on another group of six subjects performing 300 simulated supination sprain trials and 300 non-sprain trials. The accuracy of this method was 91.3%, and the method could help developing a mobile motion sensor system for ankle sprain detection
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