Evaluate EGFR Mutation Status and Impact Factors in North China

A Retrospective Study on Real-world EGFR Mutation Testing Practice Status and Impact Factors in Patients With Advanced NSCLC in North China

Approximately 3000 advanced NSCLC patients, who fulfil the inclusion/exclusion criteria, will be recruited by 30 sites in North China.

Approximately 3000 advanced NSCLC patients will be recruited , and the medical information of recruited patients must be recorded in the hospital electronic system from Jan 1st 2014 to Dec 31st 2014 .The study will focus on the EGFR testing rate in adenocarcinoma patients，so the collecting data for non-adenocarcinoma patients will be controlled in less than 10% for each site.

Inclusion Criteria:

• Histological or cytological confirmed NSCLC;
• Patients were diagnosed with advanced NSCLC from Jan 1st 2014 to Dec 31st 2014;
• Researchers should collect the records of consecutive NSCLC patients in each site.

Exclusion Criteria:

• Any patients without NSCLC diagnosis;
• Any patients which were diagnosed with advanced NSCLC before Jan 1st 2014 or after Dec 31st 2014.