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Search Results: 1 - 10 of 321027 matches for " Herrán F "
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Validez interna y reproducibilidad de la prueba CAGE en Bucaramanga, Colombia
Herrán,Oscar F; Ardila,María F;
Biomédica , 2005,
Abstract: objective. the internal validity and the reliability of the cage test (cutting down, annoyance by criticism, guilty feeling, and eye-openers) was examined for residents of bucaramanga (northeastern colombia). methods. one hundred nine subjects between 18 and 60 years were given the cage test on two occasions. each subject was surveyed for a suite of biological, socioeconomic and dietary variables. the internal consistency of the test was evaluated with cronbach's alpha, and the reliability with spearman's correlation coefficient, r, and cohen′s kappa. a binomial regression produced association measures among the risk of alcoholism and the biological, socioeconomic and dietary variables. results. the risk of alcoholism in the subjects was of 15.6% (ci 9.0 - 22.5%). the men presented a risk of alcoholism three times that of women (p=0.02). cronbach's alpha was low for all test questions (min=0.08; max=0.28). in the first application of cage, the average for cronbach's alpha was 0.20, in the second application 0.27. the overall spearman's r was of 0.65 (ci 0.53 - 0.75), but with significant sexual difference: 0.58 (ci 0.36 - 0.73) for men and 0.80 (ci 0.68 -0.88) for women. cohen's kappas ranged from moderate to good. any biological, socioeconomic and dietary variables was associated positively with the risk of alcoholism. conclusion. the low internal consistency of cage is due to the multiple aspects of the test; however, because of the high reliability and stability of the association measures, the test was recommended for continued use in epidemiological investigations.
Tipología de los consumidores de alcohol y sus factores determinantes en Bucaramanga, Colombia
Herrán,Oscar F; Ardila,María F;
Biomédica , 2009,
Abstract: introduction. the consequences of alcohol intake can be public health problems. a well-constructed classification system of alcohol consumers will assist in designing strategies for mitigation and control of alcohol-induced behaviors. objective. a categorization of alcohol consumers was developed based on a set of consumer-associated variables. material and methods. a set of 1,199 subjects between 18 and 60 years old was selected and each subject classified in three categories of alcohol intake: type a, intake desirable; type b, excessive consumption without related problems; and type c, problematic consumption or dependence. using multinomial logistic regression model, the decisive variables of each category were fixed. results. subject with positive expectations associated with consumption such as ?increase in expressivity and the sexuality? have 1.6 (95% ci; 1.0 - 2.5) times greater probability to be placed in the c category that those without those expectations. for relationships associated with ?inhibition and feelings of power?, this risk even greater- 2.2 (95%ci; 1.1- 4.3). age is in an inverse relationship and a protective factor to be classified type b or c. men have a greater probability than women to be classes in b or c; this probability is the same as subjects who indicate having moderate pleasure or a rise in pleasure induced by the alcoholic drinks. discussion. the results can be translated into programs for interventions at the population level directed to groups of higher risk, such as scholars and preteens, and with a gender focus. the personality element on which to focus the intervention is that of self-esteem. this is an element built from a behavioral-cognitive perspective within the context of the social and cultural learning process.
Expectancies toward the intake of alcohol in young adults of Bucaramanga, Colombia, 2005
Herrán,Oscar F.; Ardila,María F.;
Colombia Médica , 2009,
Abstract: objective: to settle down in young adults of bucaramanga if the statistical and conceptual performance of the test aeq-iii is similar to the one reached in young adults from mexico, and to describe the relationship of these expectancies with some variables of the context. methods: study of factorial validation and internal consistency. in bucaramanga, colombia, 156 young adults, answered 51 items of the alcohol expectancy questionnaire. a model of structural equation was developed to evaluate the goodness of fit of the factorial solution through the reason of verisimilitude chi-square (x2) and the half quadratic approach error (rmsea). the global internal consistency and intra expectancies were carried out with the alpha of cronbach. the scores for the expectancies were calculated with base in additives scales. results: the value reached for the x2 was 6921, with 1196 grades of freedom, p=0.000. the rmsea was 0.18. the global internal consistency and for the factors, it was bigger in this sample with regard to the mexican. equally, all the scores means was bigger in each factor and the smallest variability (p<0.001). conclusion: in young adults of bucaramanga, the internal consistency in the eight expectancies is good. however, the statistical coherence is poor. it is necessary to adapt the questionnaire to bucaramanga culture and in other age groups, before applying their results.
Análisis confirmatorio para la prueba AEQ-III en Bucaramanga, Colombia
HERRáN,OSCAR F; ARDILA,MARíA F;
Revista médica de Chile , 2010, DOI: 10.4067/S0034-98872010000100013
Abstract: background: the alcohol expectancy questionnaire-iii (aeq-iii) test evaluates positive expectations towards alcohol consumption. aim: to perform a confirmatory factorial analysis of the aeq-iii test. material and methods: during 2006-2008, 1199 adults between 18 and 60years old (588 males) answered a survey that included socio-economic variables and the aeq-iii test to determine alcohol consumption and its consequences. a factorial analysis was performed and the goodness off it of the final model was assessed. results: "increase in expressivity and sexuality", "decrease in physical tension", "lack of inhibition and feelings of power" and "decrease in psychological tension" were the four confirmed dimensions. this model differs of others applied in the region, has 22 variables and adjusts well. values for median quadratic approximation error, tucker- lewis index, normal adjustment index and goodness off it were 0.07, 0.93 and 0.92, respectively. the variance explained by the model increased from 62% in the exploratory to 76% in the confirmatory analysis. infernal consistency in the exploratory and confirmatory models was 0.85 and 0.87. conclusions: two confirmed dimensions correspond to group behaviors and the others, to individual behaviors. all indices of relevance of grouping variables, goodness off it and parsimony were maintained and even improved and are generally optimal.
Expectativas en el consumo de alcohol en Bucaramanga, Colombia
Ardila,María F; Herrán,óscar F;
Revista médica de Chile , 2008, DOI: 10.4067/S0034-98872008000100009
Abstract: background: expectancies such as memories, motivations and emotions towards alcohol are an important predictor of alcohol consumption in the population. the alcohol expectancy questionnaire (aeq-iii) can measure objectively these expectancies. aim: to study which expectancies are associated to alcohol consumption in adults living in bucaramanga, colombia. material and methods: the aeq-iii was applied to 601 adults (334 males) aged 18 to 60 years. a binomial regression was used to determine the expectancies that were associated with alcohol consumption after adjusting for social and demographic variables. results: eighty nine percent of the population consumes alcohol, without differences by age, gender, body mass index, educational or socioeconomic level. positive expectancies related to disinhibition and feelings of power with a prevalence ratio (pr) of 1.33 (95% confidence intervals of1.06-1.67) and an age of ?ess than 16 years when alcohol consumption started, with a pr of 1.15 (95% confidence intervals of 1.08-1.23), were the only two explanatory variables for alcohol consumption. conclusions: alcohol comsuption is more associated to social context and group integration than with individual behaviors (rev méd chile 2008; 136: 73-82)
Validez factorial del cuestionario de expectativas hacia el consumo de alcohol (AEQ-III), en adultos de Bucaramanga, Colombia
Herrán,Oscar F; Ardila,María F;
Revista médica de Chile , 2007, DOI: 10.4067/S0034-98872007000400011
Abstract: background: alcohol consumption is associated to expectancies of global positive behavioral changes, improvement in sexual performance and a higher level assertiveness. these issues are evaluated by the alcohol expectancy questionnaire (aeq-iii). aim: to perform a factorial validation of the alcohol expectancy questionnaire (aeq-iii). materials and methods: the questionnaire was applied to a representative sample of 601 subjects aged 18 to 60 years (334 males). these subjects also answered a socioeconomic questionnaire. the significant variables of the questionnaire were selected using an exploratory factorial analysis. based on the selected variables, the verification was performed using multiple models of structural equations. four factors, namely ?decrease in physical tension?, ?decrease in psychological tension?, ?increase in expressivity and sexuality? and ?inhibition and feelings of power?, were identified as significant. results: the factorial solution explains 59% of the variance. all the factors are conceptually and statistically consistent, with a cronbach alpha ranging between 0.75 and 0.83. the global internal consistency was of 0.85. pearson correlation coefficient among factors ranged between 0.45 and 0.74. there was a significant difference among socioeconomic levels for the factors ?lack of inhibition and feelings of power? and ?decrease of psychological tension?. goodness of fit statistics and parsimony were high, ranging from 0.80 to 0.93. conclusions: the expectancy ?decrease of physical tension? and ?decrease of psychological tension? are a part of individual behavior and could predict problem drinking. the factors ?increase of expressiveness and sexuality? and ?lack of inhibition and feelings of power?, are more associated to group behaviors
Expectativas en el consumo de alcohol en Bucaramanga, Colombia Expectancies towards alcohol consumption in Bucaramanga, Colombia
María F Ardila,óscar F Herrán
Revista médica de Chile , 2008,
Abstract: Background: Expectancies such as memories, motivations and emotions towards alcohol are an important predictor of alcohol consumption in the population. The Alcohol Expectancy Questionnaire (AEQ-III) can measure objectively these expectancies. Aim: To study which expectancies are associated to alcohol consumption in adults living in Bucaramanga, Colombia. Material and methods: The AEQ-III was applied to 601 adults (334 males) aged 18 to 60 years. A binomial regression was used to determine the expectancies that were associated with alcohol consumption after adjusting for social and demographic variables. Results: Eighty nine percent of the population consumes alcohol, without differences by age, gender, body mass index, educational or socioeconomic level. Positive expectancies related to disinhibition and feelings of power with a prevalence ratio (PR) of 1.33 (95% confidence intervals of1.06-1.67) and an age of ess than 16 years when alcohol consumption started, with a PR of 1.15 (95% confidence intervals of 1.08-1.23), were the only two explanatory variables for alcohol consumption. Conclusions: Alcohol comsuption is more associated to social context and group integration than with individual behaviors (Rev Méd Chile 2008; 136: 73-82)
Validez factorial del cuestionario de expectativas hacia el consumo de alcohol (AEQ-III), en adultos de Bucaramanga, Colombia Factorial validation of the alcohol expectancy questionnaire (AEQ-III), in adults living in Bucaramanga, Colombia
Oscar F Herrán,María F Ardila
Revista médica de Chile , 2007,
Abstract: Background: Alcohol consumption is associated to expectancies of global positive behavioral changes, improvement in sexual performance and a higher level assertiveness. These issues are evaluated by the Alcohol Expectancy Questionnaire (AEQ-III). Aim: To perform a factorial validation of the Alcohol Expectancy Questionnaire (AEQ-III). Materials and methods: The questionnaire was applied to a representative sample of 601 subjects aged 18 to 60 years (334 males). These subjects also answered a socioeconomic questionnaire. The significant variables of the questionnaire were selected using an exploratory factorial analysis. Based on the selected variables, the verification was performed using multiple models of structural equations. Four factors, namely “decrease in physical tension”, “decrease in psychological tension”, “increase in expressivity and sexuality” and “inhibition and feelings of power”, were identified as significant. Results: The factorial solution explains 59% of the variance. All the factors are conceptually and statistically consistent, with a Cronbach alpha ranging between 0.75 and 0.83. The global internal consistency was of 0.85. Pearson correlation coefficient among factors ranged between 0.45 and 0.74. There was a significant difference among socioeconomic levels for the factors “lack of inhibition and feelings of power” and “decrease of psychological tension”. Goodness of fit statistics and parsimony were high, ranging from 0.80 to 0.93. Conclusions: The expectancy “decrease of physical tension” and “decrease of psychological tension” are a part of individual behavior and could predict problem drinking. The factors “increase of expressiveness and sexuality” and “lack of inhibition and feelings of power”, are more associated to group behaviors
Análisis confirmatorio para la prueba AEQ-III en Bucaramanga, Colombia Confirmatory analysis for the test AEQ-III in Bucaramanga, Colombia
OSCAR F HERRáN,MARíA F ARDILA
Revista médica de Chile , 2010,
Abstract: Background: The Alcohol Expectancy Questionnaire-III (AEQ-III) test evaluates positive expectations towards alcohol consumption. Aim: To perform a confirmatory factorial analysis of the AEQ-III test. Material and Methods: During 2006-2008, 1199 adults between 18 and 60years old (588 males) answered a survey that included socio-economic variables and the AEQ-III test to determine alcohol consumption and its consequences. A factorial analysis was performed and the goodness off it of the final model was assessed. Results: "Increase in expressivity and sexuality", "decrease in physical tension", "lack of inhibition and feelings of power" and "decrease in psychological tension" were the four confirmed dimensions. This model differs of others applied in the region, has 22 variables and adjusts well. Values for median quadratic approximation error, Tucker- Lewis Index, normal adjustment index and goodness off it were 0.07, 0.93 and 0.92, respectively. The variance explained by the model increased from 62% in the exploratory to 76% in the confirmatory analysis. Infernal consistency in the exploratory and confirmatory models was 0.85 and 0.87. Conclusions: Two confirmed dimensions correspond to group behaviors and the others, to individual behaviors. All indices of relevance of grouping variables, goodness off it and parsimony were maintained and even improved and are generally optimal.
Expectancies toward the intake of alcohol in young adults of Bucaramanga, Colombia, 2005
Oscar F. Herrán,María F. Ardila
Colombia Médica , 2009,
Abstract: Objective: To settle down in young adults of Bucaramanga if the statistical and conceptual performance of the test AEQ-III is similar to the one reached in young adults from Mexico, and to describe the relationship of these expectancies with some variables of the context.Methods: Study of factorial validation and internal consistency. In Bucaramanga, Colombia, 156 young adults, answered 51 items of the alcohol expectancy questionnaire. A model of structural equation was developed to evaluate the goodness of fit of the factorial solution through the reason of verisimilitude Chi-square (X2) and the half quadratic approach error (RMSEA). The global internal consistency and intra expectancies were carried out with the alpha of Cronbach. The scores for the expectancies were calculated with base in additives scales.Results: The value reached for the X2 was 6921, with 1196 grades of freedom, p=0.000. The RMSEA was 0.18. The global internal consistency and for the factors, it was bigger in this sample with regard to the Mexican. Equally, all the scores means was bigger in each factor and the smallest variability (p<0.001).Conclusion: In young adults of Bucaramanga, the internal consistency in the eight expectancies is good. However, the statistical coherence is poor. It is necessary to adapt the questionnaire to Bucaramanga culture and in other age groups, before applying their results.
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