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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Cancer Epidemiol. 2016 Sep 26;45:26–31. doi: 10.1016/j.canep.2016.09.003

Table 5.

Reasons for non-matches of registry-only identified cancers

PLCO Status N (%)
All 2255
Diagnosis date after last Annual Study Update (ASU) form, not reported 524 (23)
Diagnosis date after last Annual Study Update (ASU) form, reported but not confirmed 162 (7)
Diagnosis within ASU coverage period, reported but not confirmed 351 (16)
Diagnosis within ASU coverage period, not reported 1218 (54)

Note: Reported implies cancer of the same type as ascertained from the registry