To provide accurate and reliable information regarding NSCLC clinical management across European countries in order to detect unmet medical needs of this disease in terms of: patient and hospital characteristics; diagnostic and treatment approaches: initial and subsequent, follow-up patterns in clinical management; outcomes: symptoms, death, functionality, quality of life; use of resources and burden on patients and health care systems.

Inclusion Criteria:

• Confirmed NSCLC diagnosis (e.g. bronchoscope or FNAB), all stages, men and women, attending the responsible department of treating this type of patients for the first time between January 1st, 2009 and March 31st, 2009.
• For PRO sub-sample: ability to read and write since they will be asked to participate in the PRO part of the study. Selection will not be based on the disease stage of each patient, in order to avoid a selection bias.

Exclusion Criteria:

• According to the study design there will not be any exclusion criteria in order to provide a high external validity and to obtain the most accurate real daily practice information.

All NSCLC patients attending the responsible department of treating this type of patients (e.g. Oncology Department, Pneumology Department) for the first time (regardless of whether the patient is diagnosed with locally, advanced or metastatic disease) at the participating sites from the first of January 2009 to the end of March 2009. Patients diagnosed, or even treated, in other departments within the same hospital or in another hospital are susceptible to be included in the study if full access to the patient's medical record is made available.