A detailed presentation and analysis of the associations between occupation and industry of employment and cancer among men and women registered in the Cancer Registry of Tianjin, China, where the occupation and industry of employment of each cancer case have been recorded since 1981. The report marks the first systematic analysis from a developing country of cancer registry data on occupation and industry. The study, conducted in an area that has undergone rapid and widespread industrialization, confirmed a number of known or suspected occupational risk factors linked to cancer in the developed world. Findings include an excess risk for oral cancer among workers employed in electricity-related occupations or industries, an excess risk of oral and laryngeal cancer among leather workers, and an increased risk of Hodgkin s disease among workers in the paper industry. Of particular interest was the finding of an increased risk among metal workers of lung cancer and an increased risk of non-melanocytic skin cancer, a finding that may be explained by exposure to mineral oils. The study also allowed the identification of industries in which substantial exposure to asbestos may have occurred. Other associations confirmed by the study are an increased risk of cancer of the lung, bone and in in electrical and electronic workers, an increase of bladder cancer risk among chemical workers, and an increase of leukaemia risk among workers, such as painters and metal workers, who may be exposed to solvents.

Provides detaled practical advice on a range of methods and procedures that can be used by cancer registries to maximize the comparability and quality of their data. Noting the vital role of population-based registries in programmes for cancer control, the book aims to provide both a review of procedures used in different registries and a guide to those specific procedures that are most likely to yield comparable, complete, and valid information. The guidelines were developed jointly by the WHO International Agency for Research on Cancer and the International Association of Cancer Registries. The book includes a diskette containing the IARC-CHECK programme for assessing the validity and consistency of data in cancer registries. The book has three chapters. The first discusses the many factors that influence the comparability of data, emphasizing rules and procedures that can help standardize diagnosis, classification, and coding. Chapter two describes three methods for evaluating the completeness of information in the cancer registry: the death certificate method, independent case ascertainment, and the historic data method. The final chapter, focused on methods for checking the validity of data, explains the use of the diagnostic criteria method, missing information, reabstracting and recording, and the internal consistency method. The book concludes with a detailed guide to the use of the IARC CHECK programme, which was designed to check data for validity and consistency by rejecting outright errors and flagging unlikely or unnatural combinations. The programme, which is intended for use in international studies, was developed to assess the validity of data assembled for Volume VI of Cancer Incidence in Five Continents.

DC.IARC

DC.HQ (Diskette at REF Desk)

eng.

WHODOC

WHO monograph

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