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. Author manuscript; available in PMC: 2009 Aug 28.
Published in final edited form as: Cancer. 2008 Aug 1;113(3):484–489. doi: 10.1002/cncr.23577

TABLE 2.

Frequency (%) of Positive Index Results for CA 125,* the Symptoms Index, and Combinations of the 2

Test Results Controls (n = 254) Cases (n = 75)
Negative for both the symptoms index and CA 125 212 (83.5) 8 (10.7)
Negative for the symptoms index but positive for CA 125 12 (4.7) 19 (25.3)
Positive for the symptoms index but negative for CA 125 30 (11.8) 8 (10.7)
Positive for both the symptoms index and CA 125 0 40 (53.3)
*

CA 125 dichotomized at the 95th percentile in the screening population. Subjects with a CA 125 value above that threshold were considered to have a positive CA 125 index.

The symptoms index was considered positive if the patient had 1 of the following symptoms for < 1 year but it occurred >12 times per month: bloating or increased abdominal size, abdominal or pelvic pain, difficulty eating, or feeling full quickly.