Internal consistency and confirmatory validity of the parenting practices inventory in a Mexican population sample / Consistencia interna y validez confirmatoria del inventario de prácticas de crianza en una muestra de población mexicana

Abstract Introduction Parenting practices refer to specific behaviours used by parents and caretakers of children to guide childhood development and socialization goals. These practices are associated with children's health, psychological, and physical development. Objective To determine the psychometric properties of the Parenting Practices Inventory (PPI) among a group of child caregivers in Mexico City. Method The PPI was applied to 443 caregivers of children and adolescents, who attended a general health care centre in Mexico City. For the psychometric evaluation of the instrument, the full distribution and discrimination of the items was analysed first. Then, the validity of the construct was tested through an exploratory factor analysis and a confirmatory analysis with structural equation modelling. Results The internal consistency of the PPI showed α = .867 and 41.25% of variance explained for all four dimensions of interest. The confirmatory factor analysis showed that the model had goodness of fit. It included twenty-four items with adequate consistency and validity indices. Discussion and conclusion The PPI is therefore a potentially useful psychometric measure for evaluating parenting practices among this type of population and could have major implications for the development of interventions and preventive programmes. It provides scientific bases for diagnostic decision-making and primary health care from the moment of initial contact to specialized medical care.

Resumen Introducción Las prácticas de crianza se refieren a comportamientos específicos utilizados por los padres y cuidadores de niños para guiar su desarrollo y metas de socialización infantil. Estas prácticas están asociadas con la salud, el desarrollo psicológico y físico de los niños. Objetivo Determinar las propiedades psicométricas del Inventario de Prácticas de Crianza (IPC) entre un grupo de cuidadores de niños en la Ciudad de México. Método El IPC se aplicó a 443 cuidadores de niños y adolescentes, que asistieron a consulta médica general en un Centro de salud en la Ciudad de México. Para la evaluación psicométrica del instrumento se analizó la distribución total y la discriminación de los reactivos. La validez de constructo se probó a través de análisis factorial exploratorio y análisis confirmatorio con modelos de ecuaciones estructurales. Resultados El IPC mostró α = .867 y 41.25% de la varianza explicada para las cuatro dimensiones de interés. El análisis factorial confirmatorio mostró que el modelo tuvo buena bondad de ajuste. Incluyó veinticuatro ítems con una consistencia e índices de validez adecuados. Discusión y conclusión El IPC es una medida psicométrica potencialmente útil para evaluar las prácticas de crianza en esta población y podría tener implicaciones importantes para el desarrollo de intervenciones y programas preventivos. Esto brinda bases científicas para la toma de decisiones en la atención primaria de la salud desde el momento del contacto inicial hasta la atención médica especializada en caso de ser requerida.

Relación entre el consumo de tabaco, salud mental y malestares físicos en hombres trabajadores de una empresa textil mexicana / Relationship among current tobacco use, mental health and physical distress in male workers of a Mexican textile industry

Introduction Tobacco use is considered a worldwide public health problem because of the amount of death and disease it causes. The WHO reports that 30% of the adult population in the world are cigarette smokers, and that nearly five million of these will die within one year. Prospective studies performed by the WHO show that if current tobacco use continues, in 2020 there will be 8.4 million deaths due to tobacco-related diseases every year; seven out of 10 of these deaths will occur in emergent countries, like Mexico. More than 53000 tobacco users die every year in Mexico because of tobacco-related diseases, and at least 147 of these die daily. Data from the National Addictions Survey (NAS) 2002 showed that 26.4% of the people between 12 and 65 years old were active tobacco consumers; this amounted to nearly 14 million individuals. Of these, 7.1% were under 18 years old. The number of tobacco consumers in Mexico has increased from nine million in 1988 to 14 million in 2002. According to the NAS, 52% of the users smoke on a daily basis, and 61.4% of them began smoking when they were minors. To know the actual consumption levels, it is important to consider some factors: the number of cigarettes a person smokes, the different situations where a person smokes, and the social and physical consequences of smoking. Thus, it would be possible to develop a consumer classification (i. e. soft consumers, mild consumers, and hard consumers). There may be numerous causes for a person to be ill. When speaking about the harmful effects of tobacco use, the literature is clear in stating that these begin with the first cigarette smoked. However, it can take up to 30 years for a consumer to notice the damage on his health after his/her consumption began; but within the first ten years there are problems in lung function and in physical endurance. When a person starts smoking there are acute and unpleasant side effects that are rarely associated with smoked tobacco use. Consumption creates a tolerance which makes unpleasant effects to stop or fade away, giving place to pleasant sensations produced by nicotine; concentration improves and psychomotor skills, alert, and activation get better and there is a reduction in anxiety and stress. The relationship between tobacco use and mental health is evident at the level of the emotional outcomes of suffering a chronic illness, such as lung cancer. On the other hand, nicotine use has been related to a reduction in the severity of depression. Chemical alternatives for reducing consumption, based on the substance physical effects that promote addiction, have not proven to be effective so far. There is also evidence that consumers that fail in quitting smoking or people that have dependence problems with nicotine show a high prevalence of mayor depression when compared to non-dependent consumers. This association was direct with the severity of nicotine dependence. It also has been observed that smoking interferes often with psychological learning tools, mainly when consumption starts at very early ages. Emotional distress can produce low self-esteem and a lack of self-confidence. Therefore, the chances to begin tobacco consumption increase when it is used as a crutch to cope with social pressure and acceptance. Since tobacco use is a conduct that has shown to have serious repercussions on physical health and an important relationship with mental health in human beings, and is therefore a growing public health problem, the objective of this study is to explore a possible link among smoked tobacco consumption, mental health and physical problems in male workers from a textile factory. Method A non-probabilistic convenience sample was used in the study. Subjects voluntarily agreed to complete the questionnaire: 279 male workers were interviewed; 54% were between 18 and 27 years old and 23% were between 28 and 37. Most of them had studied junior high school or higher (74%) and 65% were in a serious relationship (married or living with a couple). Data about tobacco use were collected using a questionnaire with questions from the NAS 2002. To explore mental health the five-item Mental Health Inventory was used (MHI-5). As it is a self-answered screening test, it does not give a diagnosis, but it does allow establishing if subjects have symptoms of a probable mental health problem. Information about physical distress was collected through an 11-item somatization sub-scale from the Symptoms Check List-90 (SCL-90). The number of physical troubles that subjects reported during the last month was considered. All instruments have good levels of reliability and validity. Finally, several socio-demographic questions were included. The questionnaire was answered in groups inside a training room. Trained interviewers participated in the process of collecting information. Subjects' participation was voluntary and their verbal acceptation was obtained before answering the questionnaires. Anonymity and confidentiality were guaranteed. Workers were told that no information would be given to the union or business authorities, and those who asked for their results received them personally. Neither invasive procedures nor intervention techniques were used. The union authorities received a global report so they could acknowledge the importance of smoked tobacco and mental health-related problems among their workers. Statistical analyses were performed using SPSS 11.

Introducción El consumo de tabaco es considerado un problema de salud pública en todo el mundo debido a la cantidad de enfermedades y muertes relacionadas con su uso. La Organización Mundial de la Salud (OMS) reporta que 30% de los adultos son fumadores y, de éstos, aproximadamente cinco millones de personas morirán en un año. También se estima que para 2020 habrá 8.4 millones de muertes anuales por enfermedades relacionadas con el consumo de tabaco, de las cuales siete de cada 10 ocurrirán en países en vías de desarrollo, como México, donde más de 53 mil personas fumadoras mueren al año por enfermedades asociadas al tabaquismo y al menos 147 personas mueren diariamente. Por otro lado, en la bibliografía se ha encontrado que el daño en el organismo por fumar comienza desde el primer cigarro, que a los 10 años se presentan síntomas sutiles en la función pulmonar y disminución de la tolerancia al ejercicio, y que es entre 20 y 30 años después cuando los síntomas hacen a un fumador tomar conciencia del daño a su salud. En cuanto a la relación entre el uso de tabaco y la salud mental, ésta se evidencia por las consecuencias emocionales que conlleva padecer una enfermedad crónica. En este contexto, el objetivo del presente trabajo fue conocer la relación de problemas emocionales y malestares físicos con el consumo de tabaco en hombres trabajadores de una empresa textil mexicana. Método La muestra estuvo conformada por 279 sujetos que laboraban en una empresa textil, en su mayoría jóvenes entre 18 y 27 años (54.5%), con escolaridad de secundaria (59.3%) y casados o en unión libre (65.6%). El instrumento utilizado incluyó las escalas de salud mental (MHI-5), malestares físicos (SCL-90) y consumo de tabaco. La aplicación del instrumento se realizó de manera grupal dentro de la empresa textil en que laboraban los sujetos. Resultados No se encontraron diferencias significativas en cuanto a problemas de salud mental y síntomas físicos entre fumadores y no fumadores. Mediante un modelo de análisis de trayectorias, se analizó la relación existente entre síntomas físicos, problemas de salud mental e indicadores de consumo de tabaco. Se encontró así que el principal predictor de los síntomas físicos en fumadores es el tiempo que llevan consumiendo y que los síntomas físicos son un importante predictor de problemas de salud mental. Discusión Sin importar la cantidad de cigarrillos consumidos, la frecuencia de consumo ni otros indicadores de consumo elevado, el tiempo que se lleva consumiendo es un predictor importante del número de síntomas físicos que se manifiestan, lo que puede deberse a los efectos dañinos que tiene el consumo prolongado del tabaco. De este modo se confirma lo mencionado en otras investigaciones de que, después de los primeros 10 años de consumo, se presentan malestares físicos sutiles y que a lo largo de 20 o 30 años se presentaran malestares importantes. Si bien no se encontró una relación directa entre consumo de tabaco y salud mental, se puede sugerir una relación indirecta derivada de la influencia que tiene el consumo sobre el plano del bienestar físico. En este sentido es de esperarse que, a medida que se continúe consumiendo tabaco y los malestares físicos aumenten, también se incrementen los problemas de salud mental. Por otro lado, el modelo aquí presentado requiere ser completado incluyendo otras áreas que puedan influir sobre el bienestar físico y mental. Sin embargo, se logró evidenciar la importancia que tiene el consumo de tabaco sobre el malestar físico, a la vez que aumenta la probabilidad de que se presenten más problemas en la salud mental de la población consumidora.

Características organizacionales, estrés y consumo de alcohol en trabajadores de una empresa textil mexicana

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Abstract: There are different factors within work environment that could créate both wellbeing and distress in workers. The climate perception employees have, as well as their evaluation of some, could have positive and negative consequences at personal and organizational levels. Work stress is another element that has meaningful repercussions on the health of people and on the quality of their performance; it has been related to alcohol and psychoactive substances abuse, besides of an increase in different social and work problems. The main objective of this paper is to determine the relationship between organizational factors (such as work stress, organization climate, and work satisfaction) and alcohol use, and the occurrence of industrial problems and accidents in Mexican workers in a textile organization. Method In order to interfere as less as possible with the production process, this study was carried out at the facilities of the organization, during work hours and during weekends. Thus, only employees who attended to work these days were interviewed. The sample included 277 workers who basically performed as operative staff. No more organization characteristics are described on behalf of an agreement, and of the anonymity of the answers given by the subjects. All the interviewees were men, their ages fluctuated between 16 and 65 years, 85% of them had attained junior high school, and 72% were married or living with a partner. A self rated questionnaire was used, along with the AUDIT (alcohol use disorder identification test) alcohol test, a work stress scale, another scale for organization climate, one more for work satisfaction, and some general questions. All the scales had good internal consistency. The procedure consisted in gathering 20 workers in a well-ventilated and illuminated room. The interviewer, who was previously trained, read the instructions aloud, emphasizing anonymity and confidentiality of any information the workers give, and stating that no one from the company would have access to the data. Analyses were performed with statistical software SPSS 11.5. EQS 6.0 was used to test the structural equation model with the relationship between organizational factors, alcohol use and negative consequences at work. Results Organizational climate. Most of the workers (92%) perceived a good level of communication with the work group, 87.2% mentioned to receive help from the boss when they have to do an activity they are not familiar with, 78% said they have enough support to solve the problems related to work. There were differences between the workers according to education level; the ones with the higher level perceived a more adverse climate. There were differences also between shifts (morning, evening, and mixed); the workers from the first one perceived a less favorable climate. Work satisfaction. Most of the workers think of their job as something useful (95%), 93% said they liked it, and 88.3% mentioned their families are satisfied. There are statistical differences be-tween satisfaction and education levels; subjects who had only basic education were more satisfied than those with a higher level. The stress sources are related to the effort implied in the struggle to move forward (87.6%), to have too much work to do (60.5%), and to the possibility of an accident when subjects are careless (51.6%). The total scale scores indicated that 14.2% of the workers had high levels of work stress. Alcohol use: 61.7% of the workers consumed alcohol during the previous year. According to the AUDIT (using eight or more as a cutoff score) 25.8% were classified as cases for alcohol related problems; 26.5% of the subjects had risk consumption, and 5.3% were consuming in a dangerous way because of the frequency and the amount they drink. Work problems: 24.1% of the subjects mentioned they have invested more time than usual in some activity related to work, 21% have been told off because of their performance, 18% felt they could not achieve quality outcomes. The incidents that workers mentioned were: hand injuries (17.5%), finger injuries (15.7%), being close to suffer an accident (13.5%), and suffering damage or injuries when working (10%). A structural equation model allowed to observe that organizational factors, climate, satisfaction, and work stress are meaningful predictors of work accidents and problems. Of all the variables included in this analysis, work stress also was the one that best predicted alcohol use at the work place. A direct effect of the individual level of alcohol use and of the use at the work place on problems and accidents, was observed. This effect was not initially considered in the model of individual consumption, neither were the frequency, the amount consumed, nor the excessive use; it was necessary to add this direct path to adjust the model so they were observed as important elements. Discussion Interviewees perceived communication as an important climate issue, mainly when established with the work group. Another element mentioned as important was perceived, that is support from the boss or supervisor to solve problems. Education level has a relevant role in the way workers live their work climate; those with a lower level experience it as more favorable. This could be the consequence of higher work expectations related to a higher education level. There are differences among shifts; workers from the first shift experienced a more favorable climate. The model included climate as a meaningful element for the presence of consequences at work place; this had a direct effect over the existence of problems and the occurrence of accidents, it was opposite to the results observed in other studios were there was not a direct relationship. Work satisfaction has to do with job usefulness, the joy for the task done, and family satisfaction with the position. The education at level affects perception of work climate. This evaluation of the worker climate has been identified as a significant factor for the reduction of negative effects at work. It is necessary to mention that employees with a higher stress level are the married ones, which may be caused by the responsibilities implied in being a family supplier. This concurs with the result of a study on burnout, which found that being married is a risk factor to develop high stress. Work stress was the most predictive component of accidents and problems at the work place, which had a direct relation (0.50). It also directly predicted alcohol use at the work place (0.22), and had a negative statistical difference with climate (-.29). Thus, it is important to consider that when workers perceive a better climate, stress level goes down, and it is necessary to consider this organizational factor to improve work conditions besides employees' physical and mental health. According to the model tested in this study, alcohol use has a direct and meaningful effect on performance and on the frequency of problems and accidents, inside and outside the organization. It is important to consider that prevention in work places must be done globally, taking into account organizational factors such as climate, stress, and worker satisfaction. It also should include educative and practical elements that allow reducing excessive alcohol use and its negative consequences (poor performance, bad interpersonal relationships, and bad outcome quality) at work, besides reducing also industrial accidents. The most frequent work problems were as follows: to invest more time than necessary in an activity, to be told-off because of mistakes, and to have problems with the boss or supervisor. These events have an impact on productivity and represent money loss for the company. The most frequent accidents were as follows: hand injuries, which are related to heavy machinery operation, basic in the production process of this industry. This reflects the need to consider the physical aspects of the place where activities are performed, as well as the psychosocial factors affecting individuals, all of which will result in benefit of any organization.

Validación del Eating Disorder Inventory en una muestra de mujeres mexicanas con trastorno de la conducta alimentaria

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Abstract: The Eating Disorder Inventory (EDI) is a psychometric instrument developed by Garner et al. for the evaluation of psychological traits in patients with eating disorders. The questionnaire offers an integral evaluative approach that includes other psychological characteristics besides those of fear of fatness. It consists of 64 items in 8 subscales: 1) Drive for Thinness, 2) Bulimia, 3) Body Dissatisfaction, 4) Ineffectiveness, 5) Perfectionism, 6) Interpersonal Distrust, 7) Interoceptive Awareness, 8) Maturity Fears. The EDI is an instrument widely used for the exploration of eating disorders (ED). Nevertheless, the use of psychometric scales in a population other than the one in which they were originally developed, requires careful adaptation. Items should be phrased in a culturally significant way, and even after that, constructs still could have different meanings in different contexts. The factorial grouping of the EDI in open populations has been reported as different from the results in clinical samples. Also, Lee and cols. reported a low correlation of the EDI subscales that measure weight preoccupation and the General Health Questionnaire - 12, concluding that fear of fatness is not related with emotional distress in their sample. In Mexico City, Alvarez and Franco conducted a validation study, finding good reliability and discriminative power, and a factorial grouping close to the original. On the other hand, in a sample of teenage girls from a semi-rural area, the factorial grouping was very different. Although we already have data about the EDI's specificity and sensitivity in Mexican ED patients, there are no studies of the validity and reliability of the test in this population. Therefore, our main objective in this work was to validate the EDI in a sample of Mexican ED patients. Also, the score information provided could be used for comparison purposes with other clinical samples. A non-probabilistic sample was obtained of all subsequent patients attending the ED Clinic at the National Institute of Psychiatry Ramón de la Fuente (INPRF) in the period 1997 2002 (n=523). Patients were diagnosed according to DSM-IV criteria in a clinical interview. They also completed other questionnaires, such as the Symptom Check List (SCL90) and the Coopersmith's Self-esteem Inventory. According to diagnosis, the sample was composed of compulsive/purging type anorexia nervosa, 5.7%; restrictive anorexia nervosa, 8%; purging type bulimia nervosa 45.1% and eating disorders not otherwise specified 41.3%. Mean age was 19.9 years (s.d.=3.9), within a rank of 13 to 39 years. Mean age at the beginning of ED was 16 years (s.d.=3.1). Mean educational level was 12 years (s.d.=3), i.e. high-school level. The sample included single women 93.9%, married 4.8% and divorcees, 1.4%. Mean Body Mass Index was 21 (s.d. = 5.5). Participants completed the EDI, SCL90, and Coopersmith's self-esteem inventory during their first visit to the Clinic. They were assured of the voluntary nature and confidentiality of their participation. Completing the tests took them about 60 minutes. An internal reliability analysis was conducted, followed by a factorial analysis of main components with Varimax rotation. Pearson correlations were made to assess the concurrent validity of EDI and other instruments. Analysis of variance was employed to compare between diagnostic groups. Data were captured and analysed in the SPSS software, versión 10.0. The first step of the analysis was the item-total correlation, considering as valid correlations equal or over 0.28. This step eliminated 12 items that were not included in further analyses. Cronbach's alpha was 0.93. Most of the items in the Perfectionism subscale disappeared in this step. Second step was factorial analysis. We found 6 factors with a minimum of 3 items included with factorial charges equal or over .40. Then a second analysis was conducted with only the 40 items that had been grouped in the 6 factors. Factor 1 included items from Bulimia and Interoceptive Awareness; factor 2, from Drive for Thinness and Body Dissatisfaction; factor 3, from Interoceptive Awareness; factor 4, from Ineffectiveness; factor 5, from Maturity Fears; and factor 6, from Body Dissatisfaction. The resulting factorial structure explained 56% of total variance. Cronbach's alpha of the final version was 0.92. Correlation analysis showed a positive and significant correlation of EDI with SCL-90, and a negative and significant correlation of EDI with Coopersmith's self-esteem inventory. Comparisons between diagnostic groups showed that bulimia nervosa patients had the highest scores in the EDI. Patients with restrictive AN had the lowest scores in all sub-scales except for Maturity Fears. Bulimia nervosa and compulsive/purging type AN patients were different from restrictive AN and EDNOS patients in the total score of Interoceptive Awareness and Ineffectiveness subscales. Bulimia nervosa was different from the other groups in Bulimia and Drive for Thinness subscales. The results show that, in this sample, many of the EDI items have a poor correlation with the scale, and factorial grouping is different from the original. However, once non-correlated items are eliminated, a version of the EDI remains that is valid and reliable. Items from the Perfectionism subscale were eliminated because of low correlation with the rest of the EDI. This supports the findings in Bulgaria, rural Mexico, and Mexico City. Maturity Fears, which also had dubious results in other studies, grouped correctly in this sample, although it did not distinguish among diagnostic groups. Analysis of variance showed that subscales were able to differentiate the Bulimia nervosa patients. Also, most of the variance explained corresponded to the Bulimia subscale, suggesting that EDI can detect bulimic attitudes, and so is a useful complement to instruments that are more capable of detecting anorexia nervosa, such as the Eating Attitudes Test. However, this could also be an effect of the sample's composition, with more than half of it being bulimic patients. Another important segment of variance was explained by Interoceptive Awareness, Ineffectiveness and Maturity Fears subscales, psychological traits that are not necessarily related to ED. In this sample, psychological subscales correlated with eating and weight attitude subscales, showed that Mexican patients do present ED according to the way they are conceptualized in the DSM-IV. Our results show that the EDI is adequate for the evaluation of psychological traits of ED patients in Mexico. Perfectionism and Interpersonal Distrust subscales are an exception, that requires further investigation.

Relación entre nivel de consumo de alcohol, salud mental y síntomas somáticos en un grupo de trabajadores de la industria gastronómica y hotelera de la Ciudad de México

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Abstract: In facilitating the presence of risk behaviors for health, some conditions inherent to the gastronomical and hotel industry may significantly affect the people working in this market. Among them are non-regular working days, temporary employment, law salaries, problems at work, low professional prestige, minimum development opportunities, bad relationships with managers, and unsafe conditions in the job environment. In comparison with other work areas, this is one of the sectors with higher risk of problems related to alcohol use, mainly due to the availability of the substance in the work place, to the social pressure, to the working schedules, and to the way people cope with stress at work. Due to movements, rhythm, and techniques used in the activities performed in this kind of job, it is possible to develop bones and muscles alterations, and because of constant changes in labor shifts circadian cycles suffer disruptions that lead to different somatic symptomatologies. Studies in workers have shown that problematic alcohol consumption is present in 33-44% of this population. Other studies have found prevalences up to 24% of mental disorders in workers. The Department of Labor has reported that, as part of work diseases, mental and behavioral disorders increased its prevalence of 0.3% in 1999 to 1.9% in 2003. On the other hand, some studies report an association between mental disorders, somatization, and alcohol use in general population. People spend a considerable portion of their lives at their work places and working in gastronomic and hotel industry implies high risk for health. The objective of this paper is to know the association among alcohol use, the number of symptoms regarding mental health problems, and the level of discomfort caused by somatic symptoms in a sample of gastronomic and hotel industry workers from Mexico City. Material and method Population and sample Sampling was non-random, on convenience, and by quota. The sample included 194 men, over 18 years old, who were working at companies from the gastronomic and hotel industry in Mexico City. Most of the subjects were under 45 years old, over half of them studied until junior high school. The most frequent position among the subjects was waiter. Working days vary, depending on the day and time banquets and receptions are programmed. Over two thirds of the subjects mentioned having three or less years working in this kind of job. Questionnaire The short version of the AUDIT (first three questions) was used to establish the level of alcohol use. This version allows to rate subjects in three levels, according to the amount and frequency of consumption: low risk use, risk use, and dangerous use. The five-item Mental Health Inventory (MHI-5) was used to determine the presence of mental health problems. The MHI-5 is a screening test that measures non-psychotic affective disorders, according to DSM-IV criteria, with no reference to specific disorders. The Symptoms Check List-90 (SCL-90) was used to identify psychological stress derived from somatic symptoms. The three scales have good levels of reliability and validity. The field team talked to the managers of the training department at the union, because all the subjects in the sample were affiliated, to get permission to collect the information. No invasive techniques were used nor any other type of intervention. Subjects responded to the questionnaire gathered in groups inside a training room. The fieldwork involved trained interviewers, whose training was voluntary. All the workers accepted to participate and to respond the questionnaire through a verbal agreement. Participation was anonymous and neither the union representatives nor the managers had access to individual questionnaires, which granted confidentiality. The union representatives acknowledged a global report that intended to make them aware of the magnitude of the alcohol use and mental health problems among their affiliates. SPSS 10 software was used to analyze data. Results A total of 44.2% of the subjects reported drinking four or more drinks per occasion; 60.9% of them mentioned they had drunk six or more drinks per occasion during the last year; 55.5% of the workers were located in a low risk consumption level; 43.1% had a risky consumption level, and 10.4% consumed at a dangerous level. Results regarding mental health showed that a quarter of the subjects «have felt uneasy¼ (26.1%), 16.7% «have felt happy¼, 9.7% «have felt sad and melancholic¼, 8.4% «have felt down or as if nothing could cheer them up¼, and 4.3% «have been very nervous¼. A cut-off score of 16 or higher allowed identifying 11% of cases with symptoms of a possible mental health problem. Most of the subjects (69.6%) mentioned having experienced at least one somatic symptom during the last month. The ones that caused more discomfort were muscular pain (17.6%), backaches (12%), headaches (9.7%), weakness in some part of the body (7.1%), and nausea (6.7%). A cut-off score of eight or higher allowed to identify 14.7% of cases with somatic symptomatology that caused psychological distress. A Pearson correlation analysis was performed and the results showed a significant association between the level of alcohol consumption and the discomfort due to somatic symptoms (pr=.404^><.01). Significant associations were also found between the mental health state and the discomfort due to somatic symptoms (pr=.339 ^><.01), and between the level of alcohol consumption and the mental health state (pr=.260 ^><.01). Discussion and conclusions The percentage of alcohol consumers, the amount of alcohol consumed, the frequency of consumption, and the prevalence of problematic consumption were higher in this group of workers when compared to employees from other occupations. This can be the result of a mayor substance availability within gastronomic and hotel work environments. The association between alcohol use and the number of symptoms of mental health problems may be an indicator of co-morbidity between both conditions. It is also possible that the association is related to excessive alcohol use as a way to cope with emotional problems. The somatic symptoms with the highest prevalence were part of the somatization scale, but there is a possibility that they are indicators of an illness or disease derived from the labor activity instead of indicators of somatic symptoms. On the other hand, whether alcohol use increases frequency of mental and physical troubles or that consumption is present as a reaction to these troubles, more research is necessary to know more about these variables co-morbidity because these relate to the presence of accidents, problems at work, social and family problems, as well as economic burden. The use of screening scales in working settings is important because it reduces costs and helps to identify related problems. In addition, they are easy to use at factories and businesses without interfering with the manufacturing processes. Nevertheless, it is important to use more specific instruments with identified cases. This would permit a more precise diagnosis and, if necessary, to refer subjects to institutions that provide specialized health care. To have such a structure would reinforce protective factors for subjects to cope with the risks inherent to their professional activity. Limitations and suggestions Conclusions are valid only for the workers in this sample because of the sampling method and they cannot be applied to all the workers of the gastronomic and hotel industry. So far, studies about substance use in working settings have focused on men population; however, women are an important segment that researchers should consider investigating to collect information that can sustain proper and necessary actions.

Validación de un cuestionario breve para medir conductas alimentarias de riesgo / Validation of a brief questionnaire to measure the risk of abnormal eating behaviors

OBJETIVO: Mostrar los resultados de confiabilidad y validez de un cuestionario para identificar conductas alimentarias de riesgo. MATERIAL Y MÉTODOS: El cuestionario se aplicó a una muestra de mujeres con diagnóstico de trastorno alimentario, en tratamiento en la Clínica de Trastornos de la Conducta Alimentaria, del Instituto Nacional de Psiquiatría, en el periodo septiembre-diciembre de 2002, y a una muestra de mujeres estudiantes de nivel medio y medio superior en la Ciudad de México, en octubre del mismo año. Se hizo análisis de consistencia interna (alfa de Cronbach) y análisis factorial de componentes principales con rotación oblicua; mediante tablas de 2 x 2 se determinaron el punto de corte, la sensibilidad, la especificidad y los valores predictivos del cuestionario. RESULTADOS: El instrumento tiene una alta confiabilidad (alfa=0.83) y una estructura interna de tres factores con una varianza explicada de 64.7 por ciento. El análisis discriminante mostró que casi 90 por ciento de los casos fueron correctamente agrupados. CONCLUSIONES: El instrumento presentado es una opción confiable y válida para la evaluación de conductas alimentarias de riesgo en la población de las muestras estudiadas.

OBJETIVE: To assess the validity and reliability of a questionnaire for the screening of risk eating behaviors. MATERIAL AND METHODS: The questionnaire was applied to female high school students in Mexico City in October2002, as well as to a sample of eating disorder patients seen at the Eating Disorders Unit of the National Institute of Psychiatry between September and December 2002. Statistical methods included internal consistency analysis (Cronbach's alpha) and factor and principal component analysis with oblique rotation. The cutoff point, sensitivity, specificity, and predictive values of the questionnaire were determined using 2 x 2 tables. RESULTS: The questionnaire showed a high reliability (·=0.83) and a three-factor structure with 64.7 percent of the total explained variance. A discriminant analysis showed that almost 90 percent of cases were correctly classified. CONCLUSIONS: This questionnaire is reliable and valid for assessing risk eating behaviors in the study population.

Factores asociados con la experimentación y con el uso problemático de drogas / Associated factors with the experimentation and with the problematic use of drugs

En este trabajo se hace una breve revisión analítica de los principales factores de riesgo que se asocian al empleo de drogas. Se describen aquellos factores que, en los jóvenes, aumentan el riesgo o los protegen de la drogadicción. Los factores de riesgo se clasifican en dos grupos: a) socioculturales y b) ambientales intraindividuales e interpersonales