Table 1.

Sociodemographic characteristics of Medicare beneficiaries without a previous cancer diagnosis, by race/ethnicity (percent)

White (n = 27,276)Black (n = 2,278)Othera (n = 1,339)
Characteristicbn%n%n%
Age (yr)
 70–747,19026.471631.448236.0
 75–798,40530.869830.640029.9
 80–847,55927.956524.831223.3
 85–894,08215.029913.114510.8
Sex
 Male10,15237.278534.558543.7
 Female17,12462.81,49365.575456.3
Median household income in zip code
 First quartile, highest6,99325.61717.526820.0
 Second quartile6,83525.126211.532824.5
 Third quartile6,60724.249821.933424.9
 Fourth quartile, lowest5,84921.41,26755.631823.7
 Unknown9923.6803.5916.8
SEER registry area of residence
 California7,73428.447921.087965.6
 Connecticut2,0967.7883.9403.0
 Detroit2,1748.045119.8161.2
 Hawaii1190.4<11<1.016712.5
 Iowa2,2088.1261.1<11<1.0
 New Mexico7042.6170.8836.2
 Seattle-Puget Sound1,5875.8341.5312.3
 Utah8743.2<11<1.0<11<1.0
 Atlanta/Rural Georgia8923.32269.9<11<1.0
 Kentucky2,6709.81325.8<11<1.0
 Louisiana1,6145.947320.8131.0
 New Jersey4,60416.934615.2856.3
Urban/rural residence
 Big metropolitan14,79554.21,53667.486264.4
 Metropolitan7,64028.047120.736427.2
 Urban1,7796.5924.0715.3
 Less urban/rural3,06211.21797.9423.1
Index year
 19963,05411.226211.514010.5
 19973,10111.427912.31289.6
 19983,04711.225911.414110.5
 19993,26012.026111.514310.7
 20003,24311.928312.415911.9
 20013,04311.225711.315811.8
 20022,81710.323110.113810.3
 20032,5199.21858.115111.3
 20041,9037.01687.41047.8
 20051,2894.7934.1775.8

NOTE: Categories with cases less than 11 were suppressed as required by the data user agreement at the time of review by the SEER-Medicare office.

aOther includes Hispanics and Asian/Pacific Islanders.

bAll χ2 tests for the distribution of demographic and clinical characteristics among these racial/ethnic groups were statistically significant (P < 05).