Acute Pesticide Poisoning in Tobacco Farming, According to Different Criteria.

BACKGROUND: Brazil is one of the world's largest pesticide consumers, but information on pesticide poisoning among workers is scarce. OBJECTIVE: To evaluate acute pesticide poisoning among tobacco growers, according to different criteria. METHODS: This was a two-step cross-sectional study with 492 pesticide applicators. It used a 25 question pesticide-related symptoms (PRS) questionnaire and medical diagnosis for comparison with toxicological assessment. Associations were evaluated using Poisson regression. RESULTS: 10.6% reported two or more PRS, while 8.1% reported three or more. Furthermore, 12.2% received a medical diagnosis of poisoning. According to toxicologists, possible cases accounted for 14.2% and probable cases for 4.3%. PRS increased during the period of greater exposure. Those exposed to dithiocarbamates, sulfentrazone, pyrethroids, fipronil and iprodione exhibited more PRS. The number of exposure types, multi-chemical exposure, clothes wet with pesticides and spillage on the body/clothes were associated with acute poisonings. All criteria showed sensitivity greater than 79% for probable cases but only greater than 70% for medical diagnosis when compared to possible cases, presenting substantial Kappa agreement. CONCLUSION: The prevalence of acute pesticide poisoning is much higher than officially recorded. Trained physicians can screen for pesticide poisoning. It is necessary to improve workers' education to reduce pesticide use and exposure to them.

Child Labor in Family Tobacco Farms in Southern Brazil: Occupational Exposure and Related Health Problems.

Tobacco farming is considered Hazardous Child Labor in Brazil. This study examined the work of children and adolescents in tobacco farming, characterizing the level of urinary cotinine and the occurrence of Green Tobacco Sickness (GTS), pesticide poisoning, respiratory symptoms, and musculoskeletal disorders. A cross-sectional descriptive study was conducted with a random sample of tobacco growers under 18 years old in Southern Brazil. Ninety-nine young people were interviewed at 79 family farms. The majority began working in agriculture before they were 14 and worked harvesting and tying hands of tobacco; 60% were 16 or 17 years old, and 51.5% were male. During their lifetime, 24.5% reported GTS, and 3% reported pesticide poisoning. In the previous year, 29.3% reported low back pain, 6.1% wheezing, and 16.2% coughing without having a cold. Half of the 12 young people evaluated had over 100 ng/mL of urinary cotinine. The study indicates that child laborers do various activities and present a high prevalence of health problems. Health workers should be trained to identify child laborers and their impacts on health. Full-time farm schools could provide knowledge about sustainable agricultural production, reducing the rates of age-grade mismatch, without taking young people away from rural areas.

Suicidality among South Brazilian tobacco growers.

OBJECTIVE: To assess prevalence of suicidal ideation and suicide attempt among South Brazilian tobacco growers and to analyze the associated factors related to the suicidal ideation. METHODS: A cross-sectional study was conducted in 2011 with a random sample of 2469 tobacco growers in São Lourenço do Sul/RS. Suicidal ideation was characterized by the question "Has the thought of ending your life been on your mind?". Suicide attempt was assessed by the question "Have you ever tried to kill yourself?". Investigation of factors associated with suicidal ideation was done by means of Poisson regression. RESULTS: Prevalence of suicidal ideation and suicide attempt was 2.5 % and 1.2 % respectively. In the adjusted analysis, suicidal ideation was associated with being female, older age, moderate participation in religious activities and difficulty in paying debts. Those who worked in activities that required inadequate postures (hunched over or other forced positions), as well as farmers who performed 6-9 pesticide-related tasks demonstrated greater risk of suicidal ideation. Regarding health conditions, medical diagnosis of asthma, chronic low back pain, number of lifetime green tobacco sickness episodes and lifetime pesticide poisoning were positively associated with suicidal ideation. CONCLUSION: Suicidal thoughts and attempts are relevant mental health problems among tobacco growers. Reducing pesticide use, as well as exposure to nicotine and improving socio-economic conditions, can reduce suicidal ideation and improve the mental health of exposed workers.

[Neck pain among tobacco farm workers in Southern Brazil]. / Dolor cervical entre agricultores que producen tabaco en el sur de Brasil.

This study aims to assess neck pain prevalence and associated factors among tobacco farm workers. This is a cross-sectional study of 2,469 tobacco farm workers in southern Brazil. An adapted version of the Nordic Questionnaire of Musculoskeletal Symptoms was used to characterize neck pain. Multivariate analysis was performed using Poisson regression, following a hierarchical theoretical model. Neck pain prevalence in the last year among the population studied was 7.4%. Worker age, tobacco smoking, tobacco bundling, use of heavy chainsaws, working at an intense or accelerated pace and green tobacco sickness were variables associated with neck pain in females. Among males, age, use of heavy chainsaws, working in a sitting position on the ground, pesticide poisoning, and green tobacco sickness were associated with the outcome. The study reinforces the importance of ergonomic and physiological workloads in the determination of neck pain. Future studies are needed to understand the role of pesticides and nicotine exposures on musculoskeletal problems. The mechanization of tobacco harvesting could reduce ergonomic and chemical exposure, thereby improving farmers' health.

Este estudio tiene como objetivo evaluar la prevalencia del dolor cervical y los factores asociados entre agricultores que producen tabaco. Se realizó un estudio transversal en el que participaron 2.469 agricultores que producen tabaco en el sur de Brasil. Para la caracterización del dolor cervical se utilizó una adaptación del cuestionario nórdico para síntomas musculoesqueléticos. El análisis multivariante se realizó mediante la regresión de Poisson, siguiendo un modelo teórico jerárquico. La prevalencia del dolor cervical en el año previo entre la población estudiada fue del 7,4%. Las variables que se asociaron con el dolor cervical entre las mujeres trabajadoras fueron la edad, el consumo de tabaco, el enfardado del tabaco, el uso de motosierras pesadas, trabajar en un ritmo intenso o acelerado y la enfermedad del tabaco verde, mientras que, entre los varones, fueron la edad, el uso de motosierras pesadas, el trabajo sentado en el suelo, la intoxicación por plaguicidas y la enfermedad del tabaco verde. El estudio refuerza la importancia de las cargas de trabajo ergonómicas y fisiológicas en la determinación del dolor cervical. Se necesitan estudios futuros para comprender el papel de la exposición a los plaguicidas y a la nicotina en los problemas musculoesqueléticos. La mecanización de la cosecha del tabaco podría reducir la exposición ergonómica y química, mejorando así la salud de los agricultores.

Dolor cervical entre agricultores que producen tabaco en el sur de Brasil / Neck pain among tobacco farm workers in Southern Brazil

RESUMEN Este estudio tiene como objetivo evaluar la prevalencia del dolor cervical y los factores asociados entre agricultores que producen tabaco. Se realizó un estudio transversal en el que participaron 2.469 agricultores que producen tabaco en el sur de Brasil. Para la caracterización del dolor cervical se utilizó una adaptación del cuestionario nórdico para síntomas musculoesqueléticos. El análisis multivariante se realizó mediante la regresión de Poisson, siguiendo un modelo teórico jerárquico. La prevalencia del dolor cervical en el año previo entre la población estudiada fue del 7,4%. Las variables que se asociaron con el dolor cervical entre las mujeres trabajadoras fueron la edad, el consumo de tabaco, el enfardado del tabaco, el uso de motosierras pesadas, trabajar en un ritmo intenso o acelerado y la enfermedad del tabaco verde, mientras que, entre los varones, fueron la edad, el uso de motosierras pesadas, el trabajo sentado en el suelo, la intoxicación por plaguicidas y la enfermedad del tabaco verde. El estudio refuerza la importancia de las cargas de trabajo ergonómicas y fisiológicas en la determinación del dolor cervical. Se necesitan estudios futuros para comprender el papel de la exposición a los plaguicidas y a la nicotina en los problemas musculoesqueléticos. La mecanización de la cosecha del tabaco podría reducir la exposición ergonómica y química, mejorando así la salud de los agricultores.

ABSTRACT This study aims to assess neck pain prevalence and associated factors among tobacco farm workers. This is a cross-sectional study of 2,469 tobacco farm workers in southern Brazil. An adapted version of the Nordic Questionnaire of Musculoskeletal Symptoms was used to characterize neck pain. Multivariate analysis was performed using Poisson regression, following a hierarchical theoretical model. Neck pain prevalence in the last year among the population studied was 7.4%. Worker age, tobacco smoking, tobacco bundling, use of heavy chainsaws, working at an intense or accelerated pace and green tobacco sickness were variables associated with neck pain in females. Among males, age, use of heavy chainsaws, working in a sitting position on the ground, pesticide poisoning, and green tobacco sickness were associated with the outcome. The study reinforces the importance of ergonomic and physiological workloads in the determination of neck pain. Future studies are needed to understand the role of pesticides and nicotine exposures on musculoskeletal problems. The mechanization of tobacco harvesting could reduce ergonomic and chemical exposure, thereby improving farmers' health.

Urinary cotinine in tobacco farmers in Southern Brazil.

OBJECTIVE: To describe urinary cotinine levels in tobacco farmers. METHODS: A cross-sectional study was conducted in 2,570 tobacco farmers. All participants that reported green tobacco sickness in the week prior to the interview plus a subsample of 492 pesticide applicators were included. We collected urinary samples and information about sociodemographic, behavioral, dietary, occupational characteristics, and pesticide poisoning during their lifetime. Stratification by sex and smoking was performed and the Wilcoxon and Kruskal-Wallis non-parametrical tests were used to analyze cotinine means. RESULTS: This study included 582 individuals. There was no difference in urinary cotinine means between green tobacco sickness symptomatic and asymptomatic individuals. Among non-smokers, having picked tobacco in the previous week was associated with higher cotinine means in both genders. Cotinine levels were higher on the first day of symptoms and reduced exponentially with each day in female non-smokers. Male non-smokers had higher levels on the second day and a more gradual reduction. The cotinine level rose up to 15 cigarettes/day of consumption. CONCLUSIONS: The urinary cotinine measures exposure to nicotine up to its saturation point; while green tobacco sickness, affected by tolerance, indicates nicotine poisoning. Strategies to reduce nicotine exposure in tobacco production are needed. Mechanization could be an alternative, as long as it overcame the challenge of irregular terrain and did not affect the quality of the leaf. More studies are needed to evaluate the chronic effect of nicotine exposure.

Workplace Accident Prevalence and Associated Factors among Tobacco Farm in São Lourenço do Sul-RS, Brazil.

Agriculture has the highest risk of accidents. In Brazil the reality of this situation is unknown owing to scarcity of studies and underreporting of workplace accidents in rural areas. This article aims to evaluate workplace accident prevalence and associated factors among tobacco farm in Sao Lourenco do Sul-RS, Brazil. Cross-sectional study with 488 tobacco farmers, assessing sociodemographic, behavioural, labour characteristics and association with workplace accidents occurring in their lifetime. The injury prevalence was 24%. Being male (PR 1.62; 95%CI 1.04-2.52), and tenant farmer (PR 1.87; 95%CI 1.29-2.72), bundling tobacco leaves (PR 2.00; 95%CI 1.14-3.52) and having minor psychiatric disorders (PR 1.58; 95%CI 1.06-2.35) were positively associated with accidents. 46% of serious injuries caused superficial lesions and 26% caused fractures. Rural workplace accident prevention policies need to be established, particularly for tobacco farming. Larger studies are needed to understand work process-related aspects that increase the risk of accidents.

Workplace Accident Prevalence and Associated Factors among Tobacco Farm in São Lourenço do Sul-RS, Brazil / Prevalência e Fatores Associados à Acidente de Trabalho em Fumicultores do Município de São Lourenço do Sul, RS, Brasil

Abstract Agriculture has the highest risk of accidents. In Brazil the reality of this situation is unknown owing to scarcity of studies and underreporting of workplace accidents in rural areas. This article aims to evaluate workplace accident prevalence and associated factors among tobacco farm in Sao Lourenco do Sul-RS, Brazil. Cross-sectional study with 488 tobacco farmers, assessing sociodemographic, behavioural, labour characteristics and association with workplace accidents occurring in their lifetime. The injury prevalence was 24%. Being male (PR 1.62; 95%CI 1.04-2.52), and tenant farmer (PR 1.87; 95%CI 1.29-2.72), bundling tobacco leaves (PR 2.00; 95%CI 1.14-3.52) and having minor psychiatric disorders (PR 1.58; 95%CI 1.06-2.35) were positively associated with accidents. 46% of serious injuries caused superficial lesions and 26% caused fractures. Rural workplace accident prevention policies need to be established, particularly for tobacco farming. Larger studies are needed to understand work process-related aspects that increase the risk of accidents.

Resumo A Agricultura concentra maior risco de acidentes ocupacionais, entretanto sua dimensão é desconhecida pela escassez de estudos brasileiros e subnotificação na área rural. O objetivo deste artigo é avaliar a prevalência e os fatores associados aos acidentes de trabalho em fumicultores em São Lourenço Sul-RS. Estudo transversal com amostra representativa de 488 fumicultores, avaliando características sociodemográficas, comportamentais, atividades laborais e associação com acidentes de trabalho na vida. Prevalência de acidentes na vida foi de 24%, encontrada associação positiva com sexo masculino (RP1,62IC-95%1,04-2,52), ser arrendatário (RP1,87IC-95%1,29-2,72), realização manocas (RP2,00IC-95%1,14-3,52) e problemas psiquiátricos menores (RP 1,58 IC-95%1,06-2,35). Dentre os acidentes graves, 46% foram superficiais e 26%, fraturas. Necessário implementar políticas preventivas de acidentes laborais na área rural e, em particular, na fumicultura brasileira; avançar na busca da compreensão dos aspectos relacionados ao processo de trabalho impactantes ao risco de acidentes.

Alcohol consumption among tobacco farmers: prevalence and associated factors. / Consumo de bebida alcoólica entre fumicultores: prevalência e fatores associados.

RESULTS: This study aims to describe the prevalence of heavy drinking, high-risk alcohol consumption and associated factors among tobacco farmers. A cross-sectional study was carried out with 2,469 tobacco farmers over 18 years old in 2011. High-risk alcohol consumption was considered the intake of three or more standard doses per day for men or two or more for women. Heavy drinking was considered the intake of four or more standard doses per day for men and three or more for women. Hierarchical multivariate analysis was performed to investigate the association with socioeconomic, behavioral, and occupational variables. : The prevalence of high-risk and heavy drinking was of 4.7% and 1.09% among women and 30.8% and 4.8% among men, respectively. The factors associated with high-risk drinking for men and women were the percentage of income tobacco accounted for (PR 1.3 and 0.4), being an employee (PR 1.3 and 3.1), and use of pesticides (PR 1.5 and 2.1), respectively. Heavy drinking among men was associated with losing the crop (PR 1.6), attending religious activities (PR 0.3), and hours working in agriculture (PR 0.6). Occupational factors were associated wit high-risk alcohol consumption among men. The associated factors vary according to the pattern of consumption assessed.

RESULTADOS: Este trabalho tem por objetivo descrever a prevalência do beber pesado e o consumo de risco de bebida alcoólica e fatores associados em agricultores que cultivam fumo. Foi realizado estudo transversal em 2469 fumicultores, maiores de 18 anos, no ano de 2011. Foi considerado consumo de risco de bebida alcoólica a ingestão de 3 ou mais doses padrão por dia em homens e 2 ou mais em mulheres. O beber pesado foi a ingestão de 15 ou mais doses padrão por semana em homens e 8 ou mais em mulheres. Foi realizada análise multivariada hierarquizada, que examinou a associação com variáveis socioeconômicas, comportamentais e ocupacionais. : A prevalência do consumo de risco e beber pesado foi 4,7% e 1,09% em mulheres e 30,8% e 4,8% em homens, respectivamente. Foram associados com consumo de risco em homens e mulheres: o percentual da renda representado pelo fumo (RP 1,3 e 0,4), ser empregado (RP 1,3 e 3,1) e uso de agrotóxico (RP 1,5 e 2,1), respectivamente. Foi associado a beber pesado em homens: perda da lavoura (RP 1,6), participação em atividades religiosas (RP 0,3) e horas de trabalho agrícola (RP 0,6). Existe associação de fatores ocupacionais com o consumo de risco de bebidas alcoólicas em homens. Os fatores associados variam conforme o padrão de consumo avaliado.

Consumo de bebida alcoólica entre fumicultores: prevalência e fatores associados / Alcohol consumption among tobacco farmers: prevalence and associated factors

Resumo Resultados Este trabalho tem por objetivo descrever a prevalência do beber pesado e o consumo de risco de bebida alcoólica e fatores associados em agricultores que cultivam fumo. Foi realizado estudo transversal em 2469 fumicultores, maiores de 18 anos, no ano de 2011. Foi considerado consumo de risco de bebida alcoólica a ingestão de 3 ou mais doses padrão por dia em homens e 2 ou mais em mulheres. O beber pesado foi a ingestão de 15 ou mais doses padrão por semana em homens e 8 ou mais em mulheres. Foi realizada análise multivariada hierarquizada, que examinou a associação com variáveis socioeconômicas, comportamentais e ocupacionais. : A prevalência do consumo de risco e beber pesado foi 4,7% e 1,09% em mulheres e 30,8% e 4,8% em homens, respectivamente. Foram associados com consumo de risco em homens e mulheres: o percentual da renda representado pelo fumo (RP 1,3 e 0,4), ser empregado (RP 1,3 e 3,1) e uso de agrotóxico (RP 1,5 e 2,1), respectivamente. Foi associado a beber pesado em homens: perda da lavoura (RP 1,6), participação em atividades religiosas (RP 0,3) e horas de trabalho agrícola (RP 0,6). Existe associação de fatores ocupacionais com o consumo de risco de bebidas alcoólicas em homens. Os fatores associados variam conforme o padrão de consumo avaliado.

Abstract Results This study aims to describe the prevalence of heavy drinking, high-risk alcohol consumption and associated factors among tobacco farmers. A cross-sectional study was carried out with 2,469 tobacco farmers over 18 years old in 2011. High-risk alcohol consumption was considered the intake of three or more standard doses per day for men or two or more for women. Heavy drinking was considered the intake of four or more standard doses per day for men and three or more for women. Hierarchical multivariate analysis was performed to investigate the association with socioeconomic, behavioral, and occupational variables. : The prevalence of high-risk and heavy drinking was of 4.7% and 1.09% among women and 30.8% and 4.8% among men, respectively. The factors associated with high-risk drinking for men and women were the percentage of income tobacco accounted for (PR 1.3 and 0.4), being an employee (PR 1.3 and 3.1), and use of pesticides (PR 1.5 and 2.1), respectively. Heavy drinking among men was associated with losing the crop (PR 1.6), attending religious activities (PR 0.3), and hours working in agriculture (PR 0.6). Occupational factors were associated wit high-risk alcohol consumption among men. The associated factors vary according to the pattern of consumption assessed.

Urinary cotinine in tobacco farmers in Southern Brazil

ABSTRACT OBJECTIVE To describe urinary cotinine levels in tobacco farmers. METHODS A cross-sectional study was conducted in 2,570 tobacco farmers. All participants that reported green tobacco sickness in the week prior to the interview plus a subsample of 492 pesticide applicators were included. We collected urinary samples and information about sociodemographic, behavioral, dietary, occupational characteristics, and pesticide poisoning during their lifetime. Stratification by sex and smoking was performed and the Wilcoxon and Kruskal-Wallis non-parametrical tests were used to analyze cotinine means. RESULTS This study included 582 individuals. There was no difference in urinary cotinine means between green tobacco sickness symptomatic and asymptomatic individuals. Among non-smokers, having picked tobacco in the previous week was associated with higher cotinine means in both genders. Cotinine levels were higher on the first day of symptoms and reduced exponentially with each day in female non-smokers. Male non-smokers had higher levels on the second day and a more gradual reduction. The cotinine level rose up to 15 cigarettes/day of consumption. CONCLUSIONS The urinary cotinine measures exposure to nicotine up to its saturation point; while green tobacco sickness, affected by tolerance, indicates nicotine poisoning. Strategies to reduce nicotine exposure in tobacco production are needed. Mechanization could be an alternative, as long as it overcame the challenge of irregular terrain and did not affect the quality of the leaf. More studies are needed to evaluate the chronic effect of nicotine exposure.

[Smoking prevalence and associated factors among tobacco farmers in southern Brazil]. / Prevalência e fatores associados ao tabagismo em fumicultores do Sul do Brasil.

This study aimed to describe the prevalence of smoking and associated factors in a cross-sectional population-based sample of 2,464 tobacco farmers in 2011. Multivariate analysis in men assessed the association between smoking and socioeconomic, behavioral, and occupational variables. Some 31.2% of men and 3.1% of women were current smokers. In men, smoking was directly associated with age, schooling, income, heavy drinking, time at work in tobacco farming, and time of exposure to pesticides. Employment relationship was a risk factor for smoking, and participation in religious activities was a protective factor. Male tobacco farmers showed multiple risk behaviors and higher smoking prevalence than other farmers. Ignoring the risk and cultural legacy may be common factors for these behaviors and suggest combined approaches.

Prevalência e fatores associados ao tabagismo em fumicultores do Sul do Brasil / Smoking prevalence and associated factors among tobacco farmers in southern Brazil / Prevalencia y factores asociados al tabaquismo en cultivadores de tabaco del sur de Brasil

Resumo: O objetivo foi descrever a prevalência de tabagismo e fatores associados em fumicultores. Estudo transversal de base populacional, em 2.464 fumicultores, em 2011. Amostra obtida por randomização das notas fiscais emitidas pelos trabalhadores. A análise multivariada em homens avaliou a associação entre tabagismo e variáveis socioeconômicas, comportamentais e ocupacionais; 31,2% dos homens e 3,1% das mulheres eram tabagistas atuais. Entre homens, tabagismo associou-se diretamente à idade, escolaridade, renda, ser bebedor pesado, tempo de trabalho na fumicultura e tempo de exposição a pesticidas. Relação de trabalho foi um fator de risco para tabagismo e participar de atividades religiosas um fator de proteção. Fumicultores homens apresentaram múltiplos comportamentos de risco e uma prevalência de tabagismo maior do que outros agricultores. A naturalização do risco e a herança cultural podem ser fatores comuns a tais comportamentos e sugerem abordagens conjuntas.

Abstract: This study aimed to describe the prevalence of smoking and associated factors in a cross-sectional population-based sample of 2,464 tobacco farmers in 2011. Multivariate analysis in men assessed the association between smoking and socioeconomic, behavioral, and occupational variables. Some 31.2% of men and 3.1% of women were current smokers. In men, smoking was directly associated with age, schooling, income, heavy drinking, time at work in tobacco farming, and time of exposure to pesticides. Employment relationship was a risk factor for smoking, and participation in religious activities was a protective factor. Male tobacco farmers showed multiple risk behaviors and higher smoking prevalence than other farmers. Ignoring the risk and cultural legacy may be common factors for these behaviors and suggest combined approaches.

Resumen: El objetivo fue describir la prevalencia de tabaquismo y factores asociados en cultivadores de tabaco. Estudio transversal de base poblacional, con 2.464 cultivadores de tabaco, en 2011. Muestra obtenida por aleatorización de las facturas emitidas por los trabajadores. El análisis multivariado en hombres evaluó la asociación entre tabaquismo y variables socioeconómicas, comportamentales y ocupacionales. Un 31,2% de los hombres y 3,1% de las mujeres eran tabaquistas actuales. Entre hombres, el tabaquismo se asoció directamente con la edad, escolaridad, renta, ser bebedor habitual, tiempo de trabajo en el cultivo de tabaco y tiempo de exposición a pesticidas. Las relaciones de trabajo fueron un factor de riesgo para el tabaquismo y participar en actividades religiosas un factor de protección. Los cultivadores de tabaco hombres presentaron múltiples comportamientos de riesgo y una prevalencia de tabaquismo mayor que otros agricultores. La naturalización del riesgo y la herencia cultural pueden ser factores comunes a estos comportamientos y sugieren enfoques conjuntos.

Wheezing in tobacco farm workers in southern Brazil.

BACKGROUND: Tobacco workers are exposed to several respiratory occupational sensitizers. METHODS: A representative cross-sectional study was carried out on 2469 tobacco family farming growers. Gender-stratified multivariate analyses evaluated the association between wheezing and socio-demographic, behavioral, and occupational variables. RESULTS: Wheezing prevalence was 11.0% with no difference between genders. Among men, age, smoking, strenuous work, pesticide use, contact with vegetable dust and dried tobacco dust, lifting sticks with tobacco leaves to the curing barns, and green tobacco sickness (GTS) were risk factors for wheezing. Among women, family history of asthma, tying hands of tobacco, strenuous work, contact with chemical disinfectants, and GTS were positively associated with wheezing. Harvesting lower tobacco leaves was a protective factor for the outcome in both genders. CONCLUSIONS: Pesticides, dusts exposure, and GTS were risk factors for wheezing. The synergic effect of these factors needs to be better evaluated to improve prevention.

Chronic low back pain among tobacco farmers in southern Brazil.

BACKGROUND: Despite tobacco farming involving intensive manual labor, chronic low back pain (CLBP) prevalence and associated factors are unknown among this occupational group. METHODS: This was a cross-sectional study conducted in southern Brazil. A random sample of tobacco farmers was interviewed. Socioeconomic and individual characteristics, occupational tasks, workloads, and comorbidities were investigated. Chronic low back pain prevalence was described in relation to independent variables, and associations were examined with Poisson regression. RESULTS: Chronic low back pain prevalence was 8·4%. Increasing age, rearing two or more species of livestock (PR 1·65), exposure to tasks that require heavy physical exertion (PR 2·00), working in awkward postures (PR 1·36), green tobacco sickness (GTS) (PR 1·63), pesticide poisoning (PR 2·37), and minor psychiatric disorders (PR 2·55) were associated with CLBP. CONCLUSIONS: This study found that CLBP is a relevant health problem among tobacco farmers and highlights understudied risk factors such as pesticide poisoning and GTS. Policies to minimize exposure to physiological and chemical workloads in tobacco planting to prevent CLBP are needed. Health professionals should be trained to diagnose and prevent acute low back pain episodes and thus prevent/minimize limitations and disabilities due to CLBP.

Limitação no trabalho por dor lombar em fumicultores do sul do Brasil / Work limitation due to low back pain among tobacco farmers in Southern Brazil

Introdução: o trabalho agrícola exige esforço físico e posturas inadequadas que são de risco para dor lombar e limitação no trabalho. A dor lombar, em especial a crônica, é responsável por grande número de afastamentos do trabalho. Objetivo: avaliou-se a prevalência de limitação no trabalho por dor lombar crônica (DLC), dor lombar no último mês (DLM) e dor lombar aguda (DLAguda), bem como as tarefas que os fumicultores deixaram de fazer devido a essas patologias. Métodos: estudo transversal realizado no ano de 2011 com uma amostra aleatória de 2469 fumicultores de São Lourenço do Sul/RS. A investigação de fatores associados à limitação por DLM foi realizada através da regressão de Poisson. Resultados: as prevalências de limitação no trabalho por DLC, DLM e DLAguda foram respectivamente, de 37,6%, 14,4,% e 7,8%. Carregar folhas, empilhar lenha e colher baixeiro foram as tarefas que os fumicultores mais deixaram de fazer. Na análise ajustada, foram associadas à limitação por DLM: idade, gastos com imposto sobre a propriedade de veículos automotores (IPVA), dificuldades para pagar dívidas e problemas psiquiátricos menores. Indivíduos com DLAguda deixam de fazer as mesmas tarefas daqueles com DLC, mas estes têm muito mais limitação no trabalho. .

Background: farming requires high physical effort and awkward postures, which are low back pain risk factors and restrain work. Low back pain, particularly chronic pain, causes a high number of sick leaves. Objective: to assess prevalence of work limitations due to chronic low back pain (CLBP), of low back pain in the last month (LBPLM) and of acute low back pain (ALBP), as well as the tasks farmers, owing to these injuries, are not able to cope with. Methods: cross-sectional study carried out in 2011 in a random sample of Brazilian tobacco farmers (2469) from São Lourenço do Sul/RS. Factors associated to limitation originated from LBPLM were evaluated via Poisson regression. Results: prevalence of work limitation due to CLBP, LBPLM and ALBP were respectively 37.6%, 14.4% and 7.8%. The tasks tobacco farmers most frequently had to give up were: carrying leaves, stacking firewood and harvesting bottom leaves. In the adjusted analysis, age, road tax expenses, difficulty in paying debts and minor psychiatric disorders were associated to work limitation due to LBPLM. ALBP individuals give up performing the same tasks as CLBP individuals, but CLBP individuals have higher work limitations. .

Occupational exposure to pesticides, nicotine and minor psychiatric disorders among tobacco farmers in southern Brazil.

INTRODUCTION: Exposure to pesticides has been associated with psychiatric problems among farm workers, although there is still controversy as to chemical types, intensity and forms of exposure that represent risk factors for neuropsychological problems. Furthermore, tobacco workers are exposed to dermal absorption of nicotine, although its effect on mental health has not yet been studied. OBJECTIVES: To identify the prevalence of minor psychiatric disorders (MPD) among tobacco farmers and associated factors, paying special attention to pesticide and nicotine exposure. METHODS: This is a cross-sectional study with a representative sample of tobacco growers, characterizing economic indicators of the farms, socio-demographic factors, lifestyle habits and occupational exposures. Multivariate analysis was performed using a hierarchical Poisson regression model. RESULTS: A total of 2400 tobacco farmers were assessed and MPD prevalence was 12%. MPD was higher among women (PR 1.4), workers aged 40 or over, tenants/employees (PR 1.8) and those who reported having difficulty in paying debts (PR 2.0). Low socioeconomic status was inversely associated with MPD prevalence. Tasks involving dermal exposure to pesticides showed risk varying between 35% and 71%, whereas tobacco growers on farms using organophosphates had 50% more risk of MPD than those not exposed to this kind of pesticide. The number of pesticide poisoning and green tobacco sickness episodes showed linear association with MPD. CONCLUSIONS: The study reinforces the evidence of the association between pesticide poisoning and mental health disorders. It also points to increased risk of MPD from low socioeconomic status, dermal pesticide exposure as well as from exposure to organophosphates. Furthermore, the study reveals intense nicotine exposure as a risk for tobacco farmers' mental health.

Green tobacco sickness among tobacco farmers in southern Brazil.

BACKGROUND: Despite being the second largest tobacco producer in the world, Brazil does not have prevalence studies about green tobacco sickness (GTS). METHODS: A cross-sectional study was carried out on a sample of Brazilian tobacco workers. The sample was described according to socio-demographic, behavioral, and occupational variables. Gender-stratified multivariate analyses examined variables associated with GTS. RESULTS: GTS prevalence among men in the previous month was 6.6%, while among women it was 11.9%. Among men, age, being a non-smoker, hanging tobacco sticks in the barn, harvesting wet leaves, and exposure to physical exertion were risk factors for GTS. Among women, tying hands of tobacco, transporting bales, harvesting wet leaves, having had contact with pesticides, and exposure to physical exertion were positively associated with GTS. CONCLUSION: Research is required to improve methods for GTS screening, as well as the ability to distinguish GTS from pesticide poisoning. Health professionals should be trained to diagnose and treat GTS.

Perfil de trabalho urbano de adolescentes de 14-15 anos: um estudo populacional no Sul do Brasil / Urban work profile among adolescents aged 14-15 years: a population-based study in Southern Brazil

The scope of this article was to describe the urban work patterns among 14 to 15-year-old youths from Southern Brazil. Child labor was characterized as any activity that resulted in retribution in the form of goods, services or money. The analyses were stratified by sex and economic level. Of the 4325 adolescents interviewed, the proportion of labor in the last year was 22.2%, namely 27.7% for the male sex, and 17% for the female sex. This proportion was also higher among the poorer strata of the population (30.0%) than the more affluent (14.3%). The majority of adolescents worked away from home and approximately half of them began working before 14 years of age, and around 80.0% reported that they worked by choice. Only 1.0% had a labor contract or work booklet, 30.0% worked more than six hours per day, and the average income was less than US$85/month. Domestic work predominated among the poorest teenagers. There is a need for greater surveillance of child labor and of interventions seeking to enforce prevailing legislation.

O objetivo deste artigo foi descrever os padrões de trabalho urbano em jovens de 14-15 anos do Sul do Brasil. O trabalho infantil foi caracterizado como qualquer atividade que resultasse em retribuição na forma de bens, serviços ou dinheiro. As análises foram estratificadas por sexo e nível econômico. Dos 4325 adolescentes entrevistados, a proporção de trabalho no último ano foi de 22,2%, sendo 27,7% para o sexo masculino e 17,0% para o sexo feminino. Essa proporção também foi maior para as classes D/E (30,0%) do que para as classes A/B (14,3%). A maioria dos adolescentes trabalhava fora de casa, aproximadamente metade começou a trabalhar antes dos 14 anos e cerca de 80,0% referiram trabalhar por interesse próprio. Apenas 1,0% tinha contrato ou carteira de trabalho, 30,0% trabalhavam mais de seis horas por dia, e a renda média foi menor do que R$ 150/mês. Os serviços domésticos predominaram entre os mais pobres. Existe a necessidade de maior monitoramento do trabalho infantil e de intervenções que busquem o cumprimento da legislação vigente.

Ten-year trends in prevalence of asthma in adults in southern Brazil: comparison of two population-based studies.

There are discrepancies in the literature regarding time trends in the occurrence of asthma in adults. This study compared asthma prevalence in two cross-sectional studies with a ten-year interval in Pelotas, Rio Grande do Sul State, Brazil. The first, in 2000, included 1,968 individuals, and the second, in 2010, 2,466 adults (20-69 years). Prevalence of wheezing and shortness of breath in the prior 12 months remained the same after ten years (6% and 6.1%, respectively). In both studies, asthma was more frequent among females and people with low family income. Physician-diagnosed asthma increased by 35.6%, and lifetime incidence of asthma, by 32.2%. There was no percentage change in current asthma symptoms or current asthma. Local socioeconomic improvement between the two studies was consistent with the increase in medical diagnosis, but did not reflect better management of asthma symptoms, underlining the need for investment regarding other determinants of the disease.