Investigation and analysis of late reporting and under-reporting of occupational diseases from 2018 to 2020 in China / 中华劳动卫生职业病杂志

Objective: To understand the late reporting and the under-reporting of occupational disease from 2018 to 2020 in China and analyze the causes, so as to provide scientific evidence for improving the quality of occupational disease reports in China, timely acquiring the incidence of occupational disease, and assessing the occupational hazards. Methods: From May to December 2021, A total of 320 occupational disease diagnostic institutions were selected for investigation. The original documents of occupational disease diagnosis cases from 2018 to 2020 were compared with the online reported cases, and late reported and under-reported cases of occupational disease were analyzed. Results: A total of 32207 diagnosed cases from 2018 to 2020 were investigated, including 28934 confirmed cases and 3273 cases without occupational disease. The overall late reported rate and under-reported rate of confirmed cases were 20.2% and 2.1%, respectively. There were significant differences in the rate of late reporting and under-reporting of occupational diseases in different regions and different types of diagnostic institutions (P<0.001). The southwest region had the highest rates of late reporting and under-reporting, 61.6% and 7.9% respectively. The late reported rate of all kinds of occupational diseases was about 15.0%, and the under-reported rate was from 1.5.0% to 5.0%. Conclusion: At present, the phenomenon of late reporting and under-reporting occupational diseases is still obvious. It is necessary to strengthen the inspection of occupational disease reporting, improve the quality of occupational disease reporting, and provide scientific basis for the formulation of occupational disease prevention and control policies.

Under-reporting of mortality surveillance in Hainan, 2018-2020 / 中国热带医学

@#Objective　To understand the overall under-reporting of cause of death monitoring in Hainan Province, and to provide a scientific basis for evaluating the data from death registration report and health planning in Hainan. Methods　Multi-stage cluster random sampling was used, all towns/streets in cities and counties of the province were ranked from highest to lowest in terms of crude death rate, divided into high, medium and low levels (the number of each level was basically the same), and one was randomly selected from each level. A total of three towns/streets were used as survey areas, and all households in the area were survey households. Death information of resident population during 2018-2020 was collected and compared with routine surveillance data for the same period. The under-reporting rate was calculated, and comparison between groups was performed by chi-square. Results　A total of 12 583 death cases were investigated from 2018 to 2020, and the average mortality was 621.48/105. 4 809 cases were missed with the total under-reporting rate of 38.22%. The under-reporting rate from 2018 to 2020 were 39.75%, 39.99% and 34.77% (χ2=30.404, P<0.01) respectively. The under-reporting rate in eastern and central and western areas were 30.33%, 30.10% and 60.15% (χ2=931.901, P<0.01) respectively. The negative rate were different in different years old group (χ2=14.834, P<0.05). Of the 4 809 under-reported cases, as many as 93.49% died at home, and the composition of deaths in hospitals was about 10 times higher in the center than in the east and west, and the proportion of those who died in hospital in central areas was about 10 times higher than in eastern and central areas. Conclusions　More than half of the cities and counties in Hainan Province have improved the completeness of cause of death surveillance data. The under-reporting rate in age group <5 years are still high, and regular under-reporting investigations are still needed to strengthen the reporting and management of death information.

A novel way to overcome the challenge of under-reporting of adverse drug reactions in a tertiary care hospital: A pharmacovigilance study

Background: Adverse drug reactions (ADRs) constitute a major clinical problem in terms of human suffering and increased health-care costs all over the world. Pharmacovigilance is the science and activities relating to the detection, assessment, understanding and prevention of adverse effects, or any other drug related problems. Thus, the information generated is useful in educating doctors about ADRS as well in the official regulation of drug use. However, the pharmacovigilance program faces the challenge of under reporting of ADRs and one needs to find the ways to overcome it. Aim and Objectives: The aim of the study was to improve the reporting of ADRs from the hospital and overcome the problem of under-reporting of ADRs. Materials and Methods: A prospective observational study was conducted as part of pharmacovigilance program over 6 months between June 2021 and December 2021. Undergraduate students were trained to collect cases of ADR from hospital during their clinical postings. The details of cases obtained by such active surveillance were filled into suspected ADR–CDSCO forms and submitted to pharmacovigilance unit. Causal relationship was assessed and categorized by Naranjo algorithm and WHO-UMC causality scale. All values were expressed in percentages. Results: A total of 120 cases were reported over 6 months compared to just 20 cases during the past year. Among them, 66% were in males and 55% were in females. The majority of ADRs were due to antimicrobial agents (40.78%) followed by hematinics (12%) and anti-epileptics (10%). The maximum number of patients (30.25%) reported with dermatological manifestations. The highest number of ADRs was reported from the Department of Medicine (45%). As per Naranjos scale, 54% reports were assessed as probable and 46% as possible. Conclusion: This new way of training and involving undergraduates significantly improved the number of ADR cases being reported to the pharmacovigilance center. This helped overcome the problem of under reporting of cases and has strengthened the pharmacovigilance activity in our institute.

Reducing the under-reporting rate of adverse transfusion reactions: Application of 5W+ 1H method combined with ECRS analysis principle / 中国输血杂志

【Objective】 To investigate the application of 5W+ 1H combined with ECRS analysis principle in reducing the under-reporting rate of adverse reactions to blood transfusion (ARBT). 【Methods】 The causes of under-reporting rate of ARBT were analyzed using 5W+ 1H combined with ECRS analysis principle in Department of Hematology, and the countermeasures and intervention measures were carried out. The under-reporting rate of ARBTs before(January 2018 to December 2019, control) and after(January 2016 to December 2017, test) the interventions was compared. 【Results】 After the application of 5W+ 1H combined ECRS analysis principle, the under-reporting rate of ARBTs decreased significantly(17.39% test vs 37.67% control) (P<0.05). 【Conclusion】 The application of 5W+ 1H combined ECRS analysis principle can effectively reduce the under-reporting rate of ARBT, improve the report management of it, and improve the safety of the blood products.

Under-reporting of energy and nutrient intake is a persistent issue in the Malaysian Adult Nutrition Surveys

@# Introduction: Under-reporting of energy intake is a common cause of bias in nutritional studies. This study was aimed at examining the extent of under- reporting of energy intake and its related characteristics among respondents in the Malaysian Adult Nutrition Survey (MANS) 2003 and MANS 2014. Methods: The present study analysed energy intakes of 9,624 adults aged 18-59 years from the MANS in year 2014 (2,890 respondents) and 2003 (6,734 respondents) using a single 24-hour diet recall. Basal metabolic rates (BMR) were calculated from the age- and gender-specific equations of Schofield. Under-reporting was defined as an energy intake:BMR ratio of <1.2 as proposed by Goldberg. Results: Under-reporting was found to have increased significantly from 53% in 2003 to 61% in 2014. In both surveys, under-reporting increased with higher body mass index (BMI) and older age groups. It was higher among women than men, lowest among those with primary schooling or below, and those living in Peninsular Malaysia. It was higher among rural respondents in 2014 but higher among urban respondents in 2003. The intake of energy and micronutrients increased when under-reporters were excluded. Conclusion: Under-reporting was prevalent in both the nationwide MANS, and is associated with BMI, age, gender, education level, location strata, zone. It is important to take this factor into account when assessing dietary intake in population-based studies.

The under-reporting of energy intake influences the dietary pattern reported by obese women in the waiting list for bariatric surgery / A subnotificação do consumo energético influencia os resultados de padrão alimentar relatado por mulheres obesas na fila de espera para cirurgia bariátrica

ABSTRACT Objective To verify the interference of the energy intake under-reporting in the determination of the dietary patterns and nutrient intakes reported by obese women in the waiting list for bariatric surgery. Methods The study included 412 women aged 20 to 45 years with a body mass index ranging from 35 to 60kg/m2 who were on waiting list for bariatric surgery. Data from three reported food intake and physical activity, body weight, and height were used for estimating the reported energy intake, physical activity level, and resting energy expenditure. Subsequently, it was checked the biological plausibility of the reported energy intakes, classifying all participants as plausible reporters or under-reporters. Exploratory factor analysis was used to determine the participants' dietary patterns. The Mann-Whitney test assessed the reported energy and nutrient intakes between plausible reporters and under-reporters groups. The Z-test assessed the variables of plausible reporters or under-reporters in relation to all participants of the study. Results Six dietary patterns were determined for all participants of study. After excluding information from under-reporting women, only two dietary patterns remained similar to those of all participants, while three other dietary patterns presented different conformations from food subgroups to plausible reporters. The reported energy intake did not present difference for the subgroups of fruits, leaf vegetables and vegetables. However, the energetic value reported for the other food subgroups was higher for the plausible reporters. Conclusion The under-reporting of energy intake influenced the determination of dietary patterns of obese women waiting for bariatric surgery.

RESUMO Objetivo Esta pesquisa buscou verificar a interferência da subnotificação do consumo energético na determinação do padrão alimentar e consumo de nutrientes, relatados por mulheres obesas na fila de espera para cirurgia bariátrica. Métodos Participaram do estudo 412 mulheres com idade entre 20 e 45 anos e índice de massa corporal entre 35 e 60 kg/m2, que aguardavam na fila de espera de cirurgia bariátrica. Foram utilizadas informações de três registros do consumo alimentar, da atividade física de 24 horas e do peso corporal e altura, para estimativa da Ingestão Energética Relatada, Nível de Atividade Física e Gasto Energético de Repouso das participantes e subsequente verificação da plausibilidade biológica do consumo energético. As mulheres foram agrupadas em notificadoras plausíveis e subnotificadoras. A análise fatorial exploratória foi utilizada para classificar os padrões alimentares. Os valores relatados de energia e nutrientes entre os grupos de notificadoras plausíveis e subnotificadoras foram avaliados por meio do teste de Mann-Whitney. O Teste de hipótese Z avaliou as variáveis das notificadoras plausíveis ou subnotificadoras em relação a todas as participantes do estudo. Resultados Seis padrões alimentares foram determinados para todas as participantes do estudo. Após excluir as informações das mulheres subnotificadoras, apenas dois padrões alimentares mantiveram-se similares aos de todas as participantes, ao passo que outros três padrões alimentares apresentaram diferentes conformações de subgrupos alimentares para as notificadoras plausíveis. A ingestão energética relatada não apresentou diferença para os subgrupos das frutas, hortaliças e legumes. Porém, o valor energético relatado para os demais subgrupos alimentares foi maior para as notificadoras plausíveis. Conclusão A subnotificação do consumo energético influenciou a determinação de padrões alimentares de mulheres obesas na lista de espera para cirurgia bariátrica.

Knowledge, attitude, and practice among healthcare professionals of adverse drug reactions reporting in a tertiary care center.

Background: There has been a rapid increase in the number of drugs entering the market from last few decades. Preclinical and clinical data are insuffi cient to conclude the complete safety of drugs. Hence, it is necessary to have a robust pharmacovigilance system in place to generate safety signals. Under reporting of adverse drug reactions (ADRs) exists as an inherent weakness of current voluntary reporting scheme. This study was therefore taken up, to evaluate the knowledge, attitude, and practice about ADR reporting among doctors in a tertiary care center. Methods: The present study was a cross-sectional questionnaire-based study, which included prescribers of a tertiary care teaching hospital. We tried to fi nd out the possible ways to improve reporting of ADR and factors responsible for defi cient reporting of ADRs. Results: After analyzing the data, we observed that 59% of the responders were aware of the ADRs reporting system. And the most encouraging fi nding was 94% of the respondents think that this reporting system is necessary. However, the practice was very poor just 14% among the respondents. 74% and 61% of participants felt creating awareness among healthcare professionals, and training to healthcare professionals would lead to improvement in reporting of ADRs respectively. Main factors which discouraged ADR reporting by healthcare professionals were reporting would lead to extra work 70.5%, non-availability of forms 64.5%. Conclusion: The defi ciencies in ADR reporting require attention so as to improve spontaneous reporting and enhance safety of patients.

Pharmacovigilance in oncology: pattern of spontaneous notifications, incidence of adverse drug reactions and under-reporting

The high toxicity and narrow therapeutic window of antineoplastic agents makes pharmacovigilance studies essential in oncology. The objectives of the current study were to analyze the pattern of spontaneous notifications of adverse drug reactions (ADRs) in oncology patients and to analyze the incidence of ADRs reported by outpatients on antineoplastic treatment in a tertiary care teaching hospital. To compose the pattern of ADR, the notification forms of reactions in oncology patients in 2010 were reviewed, and the reactions were classified based on the drug involved, mechanism, causality, and severity. To evaluate the incidence of reactions, a questionnaire at the time of chemotherapy was included, and the severity was classified based on the Common Terminology Criteria. The profiles of the 10 responses reported to the Pharmacovigilance Sector were type B, severe, possible, and they were primarily related to platinum compounds and taxanes. When the incidence of reactions was analyzed, it was observed that nausea, alopecia, fatigue, diarrhea, and taste disturbance were the most frequently reported reactions by oncology patients, and the grade 3 and 4 reactions were not reported. Based on this analysis, it is proposed that health professionals should be trained regarding notifications and clinical pharmacists should increasingly be brought on board to reduce under-reporting of ADRs.

Estudos de farmacovigilância são imprescindíveis em oncologia, pois os antineoplásicos possuem alta toxicidade e estreita janela terapêutica. Os objetivos deste estudo foram analisar o perfil das notificações espontâneas de reações adversas a medicamentos (RAM) em pacientes oncológicos e a incidência de RAM ao tratamento antineoplásico em um hospital terciário e universitário. Para compor o perfil de RAM, revisaram-se os formulários de notificação de reações em pacientes oncológicos do ano de 2010 e classificaram-se as reações conforme o medicamento envolvido, mecanismo, causalidade e gravidade. Para avaliar a incidência de reações, aplicou-se um questionário no momento da quimioterapia e a gravidade foi classificada pelos Critérios Comuns de Toxicidade. Apenas 10 reações foram notificadas ao Setor de Farmacovigilância, cujo perfil encontrado foi tipo B, grave, possível, e foram principalmente relacionadas aos compostos de platina e taxanos. Na análise da incidência das reações, observou-se que náusea, alopecia, fadiga, diarreia e distúrbio do paladar foram as reações mais frequentes relatadas por pacientes oncológicos, e as reações grau 3 e 4 não foram notificadas. De acordo com essas análises, propõe-se que os profissionais da saúde sejam treinados quanto às notificações e que farmacêuticos clínicos sejam cada vez mais inseridos neste contexto para redução da subnotificação de RAM.

Surveillance quality evaluation on death under-reporting and death causes in resident population of Fenghua City in 2009-2011 / 上海预防医学

[ Objective] To investigate the under-reporting rate of death and its causes registration , and to accurately estimate the death rates of the population and infants in Fenghua City . [ Methods] According to the “Survey Program of National Disease Surveillance System on Death Under-reporting”, a retrospective investigation was done of death under-reporting in the sample villages in 2009-2011 on the principle of capture-mark-recapture .The data from investigation have been checked up and compared with that on death causes registration surveillance obtained through “Death Under-reporting System” and“China Information System for Diseases Control and Prevention” so as to determine the under-reporting rate . [ Re-sults] A total of 855 death cases were determined by the under-reporting investigation on all sample villa-ges, and the total of 853 death cases were reported by the death causes registration system .Two cases were omitted , with under-reporting rate being 0 .23%.The omission mortality in survey was 7 .10‰.The pro-portion of the deceased highest diagnostic units and medical institutions above county level was 96.61%. The proportion of not seeking treatment was 0 .58%.The inaccurate coding rate was 3 .51%. [ Conclu-sion] In 2009-2011 in Fenghua City,death under-reporting rate was low, integrity good and death diag-nosis reliable in terms of death monitoring work stipulated by national disease monitoring system .

Avaliação de estratégia para identificação e mensuração dos acidentes de trabalho fatais / Evaluation of the strategy for identification and measurement of the fatal accidents at work

Objetivando avaliar a estratégia da Secretaria Municipal de Saúde de Belo Horizonte (SMSA/BH) na redução do sub-registro de mortes por acidentes de trabalho de 2008 a 2010, realizou-se relacionamento determinístico de dados de mortes por acidentes de trabalho notificadas no SINAN e no SIM. Como estratégia complementar ao relacionamento determinístico foram analisadas as Fichas de Investigação e as Declarações de Óbito nas quais se suspeitava tratar-se de mortes por acidentes de trabalho, porém elas não estavam declaradas. O óbito por acidente de trabalho era confirmado quando se tratava do mesmo acidentado, mesmo acidente, com nexo temporal entre o acidente e o óbito. A estratégia complementar utilizada na SMSA permitiu reduzir a sub-registro identificado pelo relacionamento determinístico, com incremento de 45 mortes. Evidenciou-se maior sub-registro de óbitos no SINAN (n = 117) do que no SIM (n = 70). Conclui-se que o relacionamento de dados SIM/SINAN é uma estratégia necessária para redução da sub-registro das mortes por acidentes de trabalho. Porém, consideradas as limitações ainda presentes nos dois sistemas o relacionamento de dados não é suficiente e que a estratégia complementar adotada na SMSA/BH - simples e de fácil execução, tem bons resultados.

In order to evaluate the strategy used by the Municipal Health Department of Belo Horizonte (SMSA/BH) for reducing the under-reporting of deaths from work-related accidents during the years of 2008 to 2010, a deterministic comparison of data on deaths from work-related accidents as reported in SINAN and SIM was conducted. As a complementary strategy to the deterministic comparison, the Investigation Data Sheets and Death Certificates were analyzed, which although not clearly declared, were suspected of involving death by work-related accident. Death from work accident was confirmed when the same victim, same accident, with a temporal connection between accident and death, were matched. The complementary strategy used by SMSA reduced the under-reporting identified by deterministic linking, with an increase of 45 deaths. Higher rates of under-reporting of deaths in the SINAN (n = 117) were found than in the SIM (n = 70). Although data linkage between SIM/SINAN is a necessary strategy to reduce the under-reporting of deaths from accidents, it is still insufficient, considering the limitations still present in both systems. The complementary strategy adopted by SMSA/BH, which is simple and easy to perform, yields good results.

Estudo da subnotificação dos casos de Aids em Alagoas (Brasil), 1999-2005 / Study of the under-reporting of Aids cases in Alagoas (Brazil), 1999-2005

A subnotificação dos casos de Aids dificulta e até mesmo impossibilita o planejamento de ações para o controle da epidemia. Este estudo foi realizado com o objetivo de verificar a subnotificação dos casos de Aids no período de 1999 a 2005 em Alagoas. Analisaram-se as declarações de óbito (DO) por Aids, registradas no Sistema de Informação sobre Mortalidade (SIM) comparando-as com o Sistema de Informação de agravos de notificação (Sinan), utilizando a técnica de relacionamento entre bancos de dados em Alagoas. O percentual de subnotificação no período foi de 12,4 por cento. Entre os 49 óbitos estudados, 67 por cento (33) ocorreram no sexo masculino e 33 por cento (16) no feminino, observando-se uma razão entre os sexos de 2:1. Com relação à escolaridade, 4,08 por cento (2) e 6,12 por cento (3) estavam relacionadas às faixas de 1 a 3 e de 4 a 7 anos de estudo, respectivamente. A faixa etária que apresentou o maior número de óbitos foi entre 20 e 49 anos, tanto no sexo feminino (11; 68,7 por cento) como no masculino (23; 69,6 por cento). A subnotificação revelada pela diferença entre óbitos por Aids registrados no SIM e ausentes no Sinan como casos da doença alerta para a necessidade de serem implementadas políticas públicas dirigidas ao problema.

The under-reporting of Aids (Acquired Immune Deficiency Syndrome) cases makes it difficult and even impossible to plan means to control the epidemic. This study aims to check out the under-reporting of Aids cases from 1999 to 2005 in Alagoas (Brazil). The deaths certificates causes by Aids stored at the Mortality Data System (SIM) in comparison to the Data System of Notification Diseases (Sinan), has been analyzed using the technique of relationship between these two data systems in Alagoas. According to the study, the proportion of under-reporting of Aids cases during this period was of 12.4 percent. Among the 49 deaths studied, 67 percent (33) were men and 33 percent (16) were women configuring a gender rate of 2:1. As to education level, 4,08 percent (2) and 6,12 percent (3) of the deaths by Aids were of people having 1 to 3 and from 4 to 7 years of study, respectively. The age group that presented the largest number of deaths was from 20 to 49 years old, either female (11; 68,7 percent) or male gender (23; 69,6 percent). The comparison between the Mortality Data System and Data System for Disease Notification revealed a high proportion of under-reporting of deaths by Aids, stressing the need for a specific public policy on the matter.

Um breve estudo acerca do cotidiano do trabalho de produtores rurais: intoxicações por agrotóxicos e subnotificação / A brief study on the rural producers daily routines: poisoning by pesticides and under-reporting

Pesquisas na área da Saúde no Trabalho têm revelado a preocupação com os agravos à saúde de trabalhadores rurais decorrentes da utilização de defensivos agrícolas. Diante disso, este estudo objetivou conhecer o cotidiano de trabalho de produtores rurais de uma cooperativa agrícola localizada no interior do estado de São Paulo, bem como avaliar a exposição deles quando da utilização de agrotóxicos no desenvolvimento de suas atividades. Esperamos, com base nos resultados, estar contribuindo com discussões sobre o tema relacionado à saúde dos trabalhadores no contexto considerado. Para coleta de dados,utilizamos entrevistas semi-estruturadas, aplicadas de formas individual e coletiva.Participaram do estudo cinqüenta produtores rurais que desenvolvem atividades nas lavouras de café, soja, trigo e milho. Os dados foram agrupados em cinco categorias e analisados qualitativamente. Os resultados expõem as características da atividade agrícola na região, a utilização dos equipamentos de proteção individual, as técnicas no uso dos agrotóxicos, o sofrimento psíquico e a produção rural e maneiras de lidar com as situações de intoxicação e alertar os órgãos competentes para o problema da subnotificação.

The harmful effects of pesticides on the rural workers health have been causing concern within the Occupational Health area. Due to this fact, our research aims not only at getting acquainted with the rural producers daily routine in an agricultural co-operative society located in the countryside of São Paulo, but also at evaluating the amount of pesticide they are exposed to while carrying out their tasks. We hope the results will offer a contribution to the discussions on this issue. The data was collected through semi-structured interviews conducted either individually, or in groups. Fifty coffee, soy, wheat and corn producers were researched. The resulting datum were classified in five categories and analyzed qualitatively. They show the features of the rural activities in the area, the use of Personal Protective Equipment, the different techniques in applying pesticides, psychological damages, rural production, ways of dealing with poisoning and warning the involved governmental and non-governmental organizations about under-reporting.

Estimating the Death Number of Children under Age 5 by Capture-recapture Methods / 中国慢性病预防与控制

Objective To estimate the death number of children under age 5 in Linzhou city during 2004 to 2005 using the capture-recapture method, and to evaluate the integrality of data about the children death report in all death cause registry. Methods The data of children death were collected from sources of registry office, village symposium for the 3rd national death cause survey and police registries. Cases in every source were matched on the name, sex, age, date of death, cause of death and resident address. To fit for dependencies and heterogeneities between three sources, a log-linear model in stratified age and gender was used to estimate the death number of children which did not appear in three sources. Results It was reported that death number of children under age 5 was 359 and the mortality was 2.16% for combined three sources; but from the registry office, the number and mortality were 291 and 1.75%, respectively. The capture-recapture method estimated that the number of death was 398 and the mortality was 2.39%. Under-reporting rates of registry and aggregate database were 26.9% and 9.8%. Female deaths were more likely to go unreported. Under-reporting rates of registry got higher with the decrease of the age at death. Conclusion Registry office or aggregated database underestimated the death number of children under age 5. On the base of data which were collected from police, village and registry, using the capture-recapture method can adjust the death number of children.

Acidentes de trabalho referidos por trabalhadores moradores em área urbana no interior do Estado de Säo Paulo em 1994 / Referred work related accidents in workers resident in an urban area of the interior of the State of São Paulo in 1994

O presente artigo apresenta alguns dos resultados de um inquérito domiciliar realizado para estudo das condições de vida da população residente em áreas urbanas de municípios com mais de 80.000 habitantes do interior do Estado de São Paulo. Os resultados aqui apresentados referem-se à prevalência e a algumas características de acidentes de trabalho ocorridos em um ano. Foram informados 41,20 acidentes de trabalho por 1.000 trabalhadores ocupados. Destes, 34,93 foram acidentes típicos e 6,28 foram acidentes de trajeto. As taxas de prevalência são analisadas com relação a características demográficas (sexo e idade) e socioeconômicas (renda, escolaridade e posição na ocupação) dos trabalhadores e também a condições de trabalho (atividade, vínculo, jornada, desgaste e estressores). Discute-se ainda a subnotificação de acidentes de trabalho comparando-se as informações de acidentes para os quais houve a emissão de CAT com os demais. Para os assalariados do setor formal a subnotificação atinge 42% e para a população economicamente ativa, como um todo, chega a 71%.

The present article introduces some of the results of a domiciliary survey designed to study the life conditions of the resident population of urban areas of São Paulo interior districts with more than 80.000 inhabitants, in 1994. A prevalence rate of 41.2 work accidents per 1.000 employed workers was estimated. The prevalence rates for typical work accidents and itinerary accidents were of 34.93 and 6.28 per 1.000 employed workers, respectively. The prevalence rates were analyzed with relation to demographic (sex and age) and socioeconomic (income, education and position in the occupation) characteristics of the workers as well as, for work conditions (activity, entail, hours work per day, waste and stressors). Under reporting of work accidents are discussed based on accident information for which there was the emission of CAT, with other information sources. For formal employees the under reporting reaches 42% and for the economically active population as a whole, it reaches 71%.