CNKIDNAG is one of a series of variables reporting age at first diagnosis of specific types of cancer. Other variables in the series report age at diagnosis of the following types of cancer:

• bladder cancer (CNBLADAG)

• blood cancer (CNBLODAG)

• bone cancer (CNBONEAG)

• brain cancer (CNBRANAG)

• breast cancer (CNBRESAG)

• cervical cancer (CNCERVAG)

• colon cancer (CNCOLNAG)

• esophageal cancer (CNESOPAG)

• gallbladder cancer (CNGALLAG)

• larynx-windpipe cancer (CNLARXAG)

• leukemia (CNLEUKAG)

• liver cancer (CNLIVRAG)

• lung cancer (CNLUNGAG)

• lymphoma (CNLYMPAG)

• melanoma (CNMELNAG)

• mouth, lip, or tongue cancer (CNMOTHAG)

• ovarian cancer (CNOVARAG)

• pancreatic cancer (CNPANCAG)

• prostate cancer (CNPROSAG)

• rectal cancer (CNRECTAG)

• (non-melanoma) skin cancer (CNSKNMAG)

• skin cancer of an unknown type (CNSKDKAG)

• soft tissue (muscle or fat) cancer (CNSOFTAG)

• stomach cancer (CNSTOMAG)

• testicular cancer (CNTESTAG)

• throat-pharynx cancer (CNTHROAG)

• thyroid cancer (CNTHYRAG)

• uterine cancer (CNUTERAG)

The age at first diagnosis for any other kind of cancer not previously listed is reported in CNOTHRAG.