Between 1978 and 2002, lung cancer incidence has regularly increased particularly for women. In 2000, the number of new lung cancer cases was estimated to 27,743 inFrance. It represents 10% of the new cancers and is the first cause of death by cancer (18.1%).

In France, the health system is decentralized with multiples sites of treatment. The increase of the efficiency of French cancer health system, at diagnosis and treatment level, requires a sharp and reliable information system. Currently, there is no large scale study of lung cancer management (diagnosis and therapy) in general population. The description of the management can be done by cancer registries which continuously and exhaustively collect informations on new cancers diagnosed whatever the place of treatment.

The main objectives of the study is to describe the management of lung cancer and to find out the factors that explain the differences of stage at diagnosis (TNM).

The second objective is the comparison of medical practices and current national guidelines. We will estimate 24-months survival rates by prognosis factors.

The study will be done on a sample 2000 invasive lung cancers diagnosed in 2004. Data will be collected using a standardized questionnaire. The statistical analysis will be descriptive, with multivariate analysis that take into account variables as age, histology, place of residence , socio-professionnal categories and type of health structure.

The discription of the management and health access method differences will provide the health authorities essential informations for an effectiveness policy of the lung cancer management.