The incidence of breast cancer in the General Practice Research Database compared with national cancer registration data

Key Points

• To compare breast cancer incidence rates from the General Practice Research Database with national cancer registration data in the UK.
• Analyzed breast cancer incidence rates among women aged 35–69 from 1990 to 1996
• Compared data from the General Practice Research Database with Office for National Statistics cancer registration data
• Incidence rates from the GPRD were closely similar to those from ONS
• GPRD serves as a valuable resource for studying breast cancer incidence and treatment outcomes