Table 3.

Proportions of patients with local, regional, or distant tumor spread by calendar years of diagnosis

Year of diagnosis
n
Tumor spread (%)
LocalRegionalDistantUnknown
19788,61347.241.08.13.7
19798,92847.142.27.13.6
19809,08247.442.07.33.3
19819,57347.742.17.13.1
19829,68248.141.56.83.6
198310,30148.539.37.84.4
198410,74950.638.36.94.2
198511,67452.436.76.64.4
198612,06154.135.86.43.7
198713,01056.933.65.73.9
198812,82458.532.45.83.3
198912,52358.132.26.13.6
199013,18060.330.56.03.2
199113,61061.129.96.03.1
199213,62162.328.95.73.1
199313,59162.628.75.63.1
199413,94662.329.05.63.2
199514,30663.128.45.72.8
199614,61663.328.06.02.7