A Study to Describe the Kidney Cancer Patient Population Treatment, and Results in the Hospital District of Southwest Finland.

Inclusion Criteria:

For the characteristic group:

* Diagnosis of renal cell carcinoma (International Classification of Diseases 10th revision \[ICD\]-10:64) during 01 January 2010 and 31 December 2021

For the mRCC group:

* ICD-10 diagnosis code for metastasis (C77\*-C79\*), or
* American Joint Committee on Cancer (AJCC) stage 4, or AJCC stage data potentially not available for all patients
* Visit to oncologist (specialty code 65) with RCC as main diagnosis, or In Finland, the ICD-10 codes for metastatic disease are rarely used. In contrast, RCC patients visit oncologist, when and only when disease metastasises and therefore, the visit can be used as a proxy to a metastatic disease
* Initiation of treatment for mRCC

Exclusion Criteria:

For the characteristic group:

* Prevalent mRCC patients (i.e. diagnosis of metastatic RCC before 01 January 2010)
* Prevalent mRCC patients (i.e. diagnosis of RCC before 01 January 2010) if there is no records of metastatic disease during 2010-2021

For the mRCC group:

* Prevalent patients with mRCC (i.e. diagnosis of metastatic RCC before 01 January 2010)
* Patients without treatment for mRCC