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Introduction. This paper analyses the evolution of antisocial behavior within the context of representative cross-sectional studies in student population from Mexico City. Surveys with students have collected data about substance use and related factors. The latter is associated with antisocial behavior and delinquency, eating disorders, risk sexual behavior, and suicide attempt. Statistics on younger offenders show an increased number of subjects presented before law institutions, meaning that they have been prosecuted somehow (there were 2623 cases in 1999, and 3506 in 2003). At the same time, there is a decrease in the age for committing these faults which are becoming more serious; a larger number of homicides, raping, and carrying weapons have been reported. The objective of this paper is to present tendencies of antisocial behavior through data obtained from three different representative surveys in junior high school and high school students from Mexico City (1997, 2000, and 2003). Surveys were held by the Instituto Nacional de Psiquiatria Ramón de la Fuente and by the Secretaria de Educación Pública. [ABSTRACT FROM AUTHOR]

The study and analysis of different factors related to the academic performance of medical students remains a topic of interest, either for selection processes or for the establishment of strategies and interventions to support students who may need it. It is said that there are two groups of features associated with academic performance: the academic (high school grades, scores on entrance exams) and non-academic (personality traits, presence or absence of psychopathology, sociodemographic aspects) characteristics. The purpose of this study was to identify the influence that different features of a group of medical students from the High Academic Performance Program (HAPP) at Universidad Nacional Autonoma de Mexico (UNAM) had on their school performance. Materials and methods This paper presents the one year follow up of a cohort of students initially studied during the selection process to entry the HAPP of Medicine School at UNAM. We evaluated all first-year medical students of UNAM who, during 2009-2010, continued to be part of the HAPP and who agreed to participate in this research. At the end we studied 94 students (48 men, 46 women) with a mean age of 18.3 years. The analyzed variables were: academic performance, demographic factors, academic background, personality, abstract thinking, creative thinking, mental disorder. For the initial evaluation at the entrance to University we used the Minnesota Multiphasic Personality Inventory -2 (MMPI-2), the subscale of abstract reasoning from the Differential Aptitude Test (DAT), a semi-structured interview to investigate demographic and academic characteristics, and the figural test from the Torrance Test of Creative Thinking. In a second assessment (at the end of the first year), we applied the MMPI-2 (for a second time with the intention to avoid the pressure that students could have during the selection process to enter the HAPP) and Mini-International Neuropsychiatric Interview (MINI) to assess the presence of psychopathology. Also, final grades were collected from the academic file of each student. For statistical analysis we used ANOVA, multiple linear regression models, bivariate correlations and cluster analysis. Results The general knowledge test was presented as the only significant predictor for both the final average for all subjects separately, and for the final general average. Results: The general knowledge test was the only significant predictor for both the final average and the final grades for each subject. Characteristics of creative thinking (e.g fluency) or personality traits (such as MMPI-2 Mania scale) were significant predictors for the final average for most of the subjects, however they were not consistent at all. Anatomy (r= 859), developmental biology (r=852), biochemistry (r=.893) and cell biology and tissue (r=.889) were subjects whose average had a high correlation with the global final average, while public health (r=.696) and medical psychology (r=.670) showed a moderate correlation. The score of abstract thinking (r=.029) had not any correlation with the final average that these students got at the end of the year. A comparison between the two measurements (one at the entrance to Medicine School and the other one year later) of the MMPI-2 was made and we found that there was a pattern of consistency between measurements and all correlations among the different scales that shape the inventory were significant (p<.001). Hypochondriasis, Depression, Hysteria and Psychasthenia scales, tended to rise significantly. In order to evaluate the presence of psychopathology in these students at the end of the first year of Medicine School, the MINI it was used. Of the 96 students, it was found that 77 (80.20%) had no psychopathology, and that 19 (19.79%) had one or more mental disorders at the moment of the interview. The disorders that presented the participants were: major depressive disorder (n=15), generalized anxiety disorder (n=7), bipolar disorder (n=1) and anorexia nervosa (n=1). To determine the influence of the presence of psychopathology on the students final grades, we analyzed the differences between the group of students without any mental disorder and the group with psychopathology. There was no statistically significant difference in the general final average (U=678 500, Z0-.503, p=0.615), and it was a characteristic that only made a difference for the final grades of Anatomy (U=475, Z=-2.50, p=0.012) and Public Health (U=544, Z=-2.007, p=0.045). None of the socioeconomic aspects influenced the students' academic performance. Discussion For the group of the evaluated students, we only found that the general test scores of knowledge is a significant and consistent predictor for average subjects in the first year and the final general average. Conclusions The general knowledge test was a useful predictor for final grades because it seems to summarize many of the skills and habits related to student academic success. [ABSTRACT FROM AUTHOR]

Introduction Depression and its symptoms are becoming one of the most important health problems worldwide. The impact of depression on the productive life of people, and the burden it represents because of its co-morbidity, is growing. Some authors estimate that depression is the second cause for the global loss of years of healthy life and the first one in developed countries. An increasing proportion of teenage population has mental health issues. Depression and its symptoms are among the most common, but they are not an epidemic problem yet, although spread enough as to maintain interest in its current impact and in its negative consequences over individual health. Depression has a prominent place among mood disorders in Mexico (4.5%), and women are who mostly suffer it (5.8%), which has remained consistent over time. Different difficult situations occur during adolescence along with depression, depressive mood, and depressive symptoms. This situation may be related to changes and processes that occur during this period when individuals cope with situations they cannot handle, which in turn become stressful. Therefore, it is necessary to study and to work with adolescents in order to be able to differentiate affective, cognitive, somatic, and behavioral expressions, which are proper to this stage, from those possibly caused by an illness that could have negative consequences. Adolescent depression influences mood and the way individuals live unpleasant or annoying experiences, thus it affects almost every aspect of life and becomes a risk factor for psychiatric and behavioral problems. However, there are some areas that need more research, for example: the specific characteristics and expressions of the problem including gender comparisons and using designs with special groups. Data show that depression is growing in adolescents; therefore it is a priority to work on detection and prevention to reduce its impact on mental health and to develop cost-effective intervention strategies. One way to do this is using valid-reliable screening tools because they are cheap, and methodologically-logistically useful. The Center for Epidemiological Studies Depression Scale (CESD) has been used in different studies with Mexican adolescents, and has proven to have good psychometric characteristics. The CES-D has never been used with an entire population in a great scale study. The objective of this paper is to measure the validity and reliability of the scale (construct, concurrent, and external validity, as well as internal consistency) in a population of high school and college freshman students from Mexico City. Method Design. The study was a census made with high school and college freshman students during 2009. Data were collected in 22 schools. Population. A sample of 58568 students participated in the census. The mean age was 17 years old (±2.7). Most of the students lived in homes with one to four other persons at the moment of the study (55.4%); 86% said that only their father worked at that moment, and 59.4 said that only the mother; 79.7% of the students lived with both parents, and 17.9% only with their mother; 57403 students (98.0% of the population) completed the CES-D in the age range of 14-24 years: 27264 (47.5%) men, and 30139 (52.5%) women. Instrument. The Automated Medical Examination (Examen Médico Automatizado-EMA) is a diagnostic questionnaire designed by the General Directorate of Medical Services (Dirección General de Servicios Médicos) of the Universidad Nacional Autónoma de México (UNAM). It is a questionnaire with four self-report forms that collect information about the physical and mental health, the family, and the general context of every student. This information is used to create a diagnosis of vulnerability and a predictive profile for developing prevention programs, as well as research protocols that help in promoting a culture for health care. The CES-D was included for the measurement in 2009. Results Overall internal consistency was adequate (α=.83). Internal consistency was tested by sex; the coefficient was higher for women (α=.84). Factor analysis generated a four-factor solution (explained variance 54.1%); each factor had good internal consistency and theoretical agreement. The scale showed a significant discriminative power for opposite scores (z=-144.121, p<.001), and a positive significant correlation with the Okasha Suicidality Scale (rΦ=.325, p=.000). A cut-off point of 16 or higher was established to identify students with high depressive symptomatology. 14.7% of the participants in this study had high depressive symptomatology (11.1% men, 17.9% women). Conclusions The CES-D is a valid and reliable epidemiological instrument for different populations. Since depression is a complex and dynamic phenomenon, it is important to evaluate the psychometric properties of any instrument used to measure it. The results of this study showed that the CES-D maintains its internal consistency as well as good concurrent-external validity. Coefficients are higher for women and they increase with age; thus, it would be necessary to refine some aspects to measure younger subjects in a more consistent manner. The data proved that CES-D is a useful instrument for distinguishing different levels of depressive symptomatology; this is relevant because the scale is often used in collective contexts, allowing systematic monitoring of depression with good cost-effective results. Monitoring is also important to keep acceptable levels of emotional wellbeing in student population. Development and refinement of instruments such as the CES-D would potentially lead to opportune and reliable detection of adolescents who may be at risk for suffering mental health problems. This would facilitate implementing more stable and continuous prevention and attention programs to reduce the negative impact of depression in the short term. [ABSTRACT FROM AUTHOR]

In Mexico, addictions among the middle- and high-school student population have been widely studied, which has shed light on certain risks associated with alcohol abuse, including a higher probability of experiencing with other drugs particularly in the case of males-, engaging in risky sexual practices and attempting suicide, a situation that is twice as common among those who drink and drive. Nevertheless, research on alcohol abuse among the university population has been less explored, particularly as regards the identification of the variables that predict excessive alcohol consumption. A review of the international literature on factors associated with alcohol abuse in this type of population indicates that it is among university students that high or explosive consumption tends to be largest, even among young people who do not attend school, and that the period of higher consumption is between 17 and 21 years of age. Other factors that have been identified include exposure to negative life events, inappropriate coping styles, personality variables, resorting to alcohol to reduce tension, and environmental and socio—cognitive variables, foremost among which arc expectations of the positive effects of alcohol. These expectations not only predict alcohol consumption but also differentiate between problem and non-problem drinking. For example, while social drinkers tend to harbor more social expectations when drinking alcohol, excessive drinkers expect alcohol to increase their aggressive and social behavior, while reducing stress or tension. This paper seeks to evaluate the impact of expectations regarding alcohol, in predicting alcohol abuse among students at public and private universities in Mexico City. Indicators of alcohol abuse include consumption of five or more drinks on each occasion, drunkenness during the past month and year as well as associated problems. The study also seeks to determine the way in which sub-scales of expectations interact with each other. [ABSTRACT FROM AUTHOR]