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Articles 181 - 194 of 194

Full-Text Articles in Medicine and Health Sciences

Sunshine And Suicide At The Tropic Of Capricorn, São Paulo, Brazil, 1996–2004, Paulo A. Lotufo Dec 2006

Sunshine And Suicide At The Tropic Of Capricorn, São Paulo, Brazil, 1996–2004, Paulo A. Lotufo

Paulo A Lotufo

Several studies have confi rmed seasonal variation in suicide rates according to hours of sunshine. The suicide pattern was assessed in São Paulo, southeastern Brazil, at the tropic of Capricorn from 1996 to 2004. Poisson regression was employed to estimate parameters of seasonality, as well as to verify associations for each day between daylight duration and suicide. During the nine-year study period, there were 3,984 suicides (76.9% in men; median age=38.7 years old). Seasonal averages of suicides were similar, as were monthly averages. Poisson regression did not reveal any association between suicide rates and hours of sunshine (p=0.45) for both …

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Weekends: A Dangerous Time For Having A Stroke?, Gustavo Saposnik Dec 2006

Weekends: A Dangerous Time For Having A Stroke?, Gustavo Saposnik

Gustavo Saposnik

No abstract provided.

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Hospital Volume And Stroke Outcome: Does It Matter?, Gustavo Saposnik Dec 2006

Hospital Volume And Stroke Outcome: Does It Matter?, Gustavo Saposnik

Gustavo Saposnik

No abstract provided.

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Additional Cardiovascular Risk Factors Associated With Excess Weigth In Children And Adolescents. The Belo Horizonte Heart Study, Paulo A. Lotufo Dec 2005

Additional Cardiovascular Risk Factors Associated With Excess Weigth In Children And Adolescents. The Belo Horizonte Heart Study, Paulo A. Lotufo

Paulo A Lotufo

OBJECTIVE: To examine the association of overweight and obesity with physical activity, blood pressure (BP) and serum lipid profiles. METHODS Epidemiologic investigation of 1,450 students, between the ages of 6 and 18, in the city of Belo Horizonte, MG. Data: weight, height, BP, skinfold thickness, waist circumference, physical activity, total cholesterol (TC), LDL-c, HDL-c, and dietary habits. RESULTS The prevalence rates for overweight and obesity were 8.4% and 3.1%, respectively. In relation to the students in the lower quartile (Q1) of the distribution of subscapular skinfold, the students in the upper quartile (Q4) presented a 3.7 times higher risk (odds …

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Brain Nerve Conduction Velocity Is A Valid And Useful Construct For Studying Human Cognitive Abilities: A Reply To Saint-Amour Et Al, Andrew Johnson, T. Reed, Philip Vernon Dec 2004

Brain Nerve Conduction Velocity Is A Valid And Useful Construct For Studying Human Cognitive Abilities: A Reply To Saint-Amour Et Al, Andrew Johnson, T. Reed, Philip Vernon

Andrew M. Johnson

No abstract provided.

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A Wintertime Study Of Pahs In Fine And Coarse Aerosols In Sa˜O Paulo City, Brazil, Paulo A. Lotufo Dec 2004

A Wintertime Study Of Pahs In Fine And Coarse Aerosols In Sa˜O Paulo City, Brazil, Paulo A. Lotufo

Paulo A Lotufo

The Polycyclic aromatic hydrocarbons PAHs (naphthalene, acenaphthylene, acenaphthene, phenanthrene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno(1,2,3-cd)pyrene and benzo(ghi)perylene) concentrations in fine (PM2.5) and coarse (PM2.5–10) atmospheric particulate matter were measured at Sa˜o Paulo city, Brazil. The dominant PAHcompounds were indeno(1,2,3-cd)pyrene, benzo(ghi)perylene and benzo(b)fluoranthene for both the fractions. The calculated ratios of some specific PAHs were in close agreement with those attributed to direct emissions of car exhaust. The factor analysis for PM2.5 produced four factors: Factor 1 was attributed to diesel emissions, Factor 2 was attributed to stationary combustion source, Factor 3 was attributed to vehicular emissions and Factor …

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Visual Inspection Time In Parkinson's Disease: Deficits In Early Stages Of Cognitive Processing, Andrew Johnson, Quincy Almeida, Con Stough, James Thompson, Rene Singarayer, Mandar Jog Dec 2003

Visual Inspection Time In Parkinson's Disease: Deficits In Early Stages Of Cognitive Processing, Andrew Johnson, Quincy Almeida, Con Stough, James Thompson, Rene Singarayer, Mandar Jog

Andrew M. Johnson

Inspection time (IT) is a simple information processing paradigm dependent on a participant's ability to identify physical properties of a stimulus presented for a specified time interval. In contrast with reaction time (RT) studies, the dependent variable of interest in IT is not related to the motoric speed with which the individual is able to respond, but rather the minimum presentation time necessary for participants to reliably identify physical properties of the stimulus. It is well documented that individuals with Parkinson's disease (PD) experience significant impairment on tests of simple RT, but it is unclear whether such deficits can be …

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A Role Of The Basal Ganglia In Movement: The Effect Of Precues On Discrete Bi-Directional Movements In Parkinson's Disease, Andrew Johnson, Philip Vernon, Quincy Almeida, Linda Grantier, Mandar Jog Dec 2002

A Role Of The Basal Ganglia In Movement: The Effect Of Precues On Discrete Bi-Directional Movements In Parkinson's Disease, Andrew Johnson, Philip Vernon, Quincy Almeida, Linda Grantier, Mandar Jog

Andrew M. Johnson

The effect of a precue on improving movement initiation (i.e., reaction time; RT) is well understood, whereas its influence on movement execution (i.e., movement time; MT) has rarely been examined. The current study investigated the influence of a directional precue (i.e., left vs. right) on the RT and MT of simple and discrete bi-directional movements in a large sample of Parkinson's disease patients and healthy control participants. Both patients and controls were tested twice, with testing sessions separated by 2 hours. Patients were tested first following an overnight levodopa withdrawal and again after they had taken their medication. Both patients …

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Age And Neuropsychological Status Following Exposure To Violent Nonimpact Acceleration Forces In Mvas, James Sweeney, Andrew Johnson Dec 2000

Age And Neuropsychological Status Following Exposure To Violent Nonimpact Acceleration Forces In Mvas, James Sweeney, Andrew Johnson

Andrew M. Johnson

Performance on the Halstead-ReitanNeuropsychological Test Battery (HRB) was analyzed for 33 ind viduals, aged 20 to 69, who had been subjected to violent aceeleration forces in motor vehicle accidents . Age was considered as a continuous variable and correlated with single and compos ite HRB measures. With the one exception of the Left Neuropsychological Deficit Scale (NDS) score, agere lated de cline was consistently demonstrated by com positeHRB scores (i.e., Gen eralNDS, Right NDS, Level of Performance NDS, Pathognomonic SignNDS, Pattern NDS, Right-Left Differ enceNDS, and Halstead Impairment Index). In contrast, most single non-composite HRB measures did not refleet a …

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Alcohol Consumption And Risk Of Coronary Heart Disease By Diabetes Status, Paulo A. Lotufo Dec 1999

Alcohol Consumption And Risk Of Coronary Heart Disease By Diabetes Status, Paulo A. Lotufo

Paulo A Lotufo

Background—An inverse association between moderate alcohol consumption and coronary heart disease (CHD) has been observed in several epidemiological studies. To assess whether a similar association exists among diabetics, we examined the relation between light to moderate alcohol consumption and CHD in men with and without diabetes mellitus in a prospective cohort study. Methods and Results—A total of 87 938 US physicians (2790 with diagnosed diabetes mellitus) who were invited to participate in the Physicians’ Health Study and were free of myocardial infarction, stroke, cancer, or liver disease at baseline were followed for an average of 5.5 years for death with …

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Depression In Pd, Kevin J. Black Aug 1998

Depression In Pd, Kevin J. Black

Kevin J. Black, MD

No abstract provided.

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O Estado Atual Do Controle Do Diabetes, Da Dislipidemia E Da Hipertensão [Portuguese], Paulo A. Lotufo Dec 1997

O Estado Atual Do Controle Do Diabetes, Da Dislipidemia E Da Hipertensão [Portuguese], Paulo A. Lotufo

Paulo A Lotufo

No abstract provided.

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Epilepsy, Michael Rogawski Dec 1995

Epilepsy, Michael Rogawski

Michael A. Rogawski

No abstract provided.

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Mortality From Asthma In State Of Sao Paulo (1970-92), Paulo A. Lotufo Dec 1994

Mortality From Asthma In State Of Sao Paulo (1970-92), Paulo A. Lotufo

Paulo A Lotufo

No abstract provided.

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