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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Cancer. 2015 May 6;121(17):2951–2959. doi: 10.1002/cncr.29403

Table 1.

Recruitment of FDRs of Colorectal Cancer Cases

White Latino Afr. Am. Asian Total
Cases contacted 1397 1652 1078 1554 5681
Attrition due to:

  • Wrong info/never reached (34%)

  • Refused (14%)

  • No relatives (9%)

  • Case deceased (6%)

  • No CRC diagnosis (3%)

  • Language ineligible, poor health, left country (<5%)

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Cases providing relatives 450 (32%) 519 (31%) 276 (26%) 400 (26%) 1645 (29%)
By mail 48% 33% 39% 39% 40%
By phone 52% 67% 61% 61% 60%
Relatives provided by cases 1291 1783 887 1112 5073
2.9/case 3.4/case 3.2/case 2.8/case 3.1/case
Attrition due to:

  • Age ineligible (20%)

  • Live outside U.S. (2%)

  • Case did not give consent (2%)

  • Language ineligible, incomplete contact info, history of CRC in relative (<3%)

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Relatives eligible for baseline survey 925 (72%) 1294 (73%) 723 (82%) 725 (65%) 3667 (73%)
Attrition due to:

  • Wrong info/never reached (13%)

  • Refused (10%)

  • Relative not sibling/child (3%)

  • Language/age ineligible, CRC history, other high risk (<3%)

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Eligible and completed baseline (based on case ethnicity) 689 (74%) 887 (69%) 494 (68%) 525 (72%) 2595 (71%)
Met all study eligibility criteria* 351 403 284 242 1280
 completed 6 mo. Interview 304 (87%) 305 (76%) 217 (76%) 204 (84%) 1030 (80%)
 completed 12 mo. Interview 273 (78%) 279 (69%) 204 (72%) 192 (79%) 948 (74%)
*

Not current on CRC screening at baseline, Abbreviations: FDRs, first-degree relatives; CRC, colorectal cancer

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