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

ABSTRACT

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.

RESUMEN

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.