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. Author manuscript; available in PMC: 2016 Jun 3.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2015 Jan 26;24(4):671–676. doi: 10.1158/1055-9965.EPI-14-1128

Table 3.

Examples of multiplicative relative risks across genetic risk score and personal/lifetime risk/protective factors

Genetic Risk Score
Q1 Q2 Q3 Q4 Q5
Referent for personal/lifestyle factors 1.00 1.25 1.44 1.66 2.12
    OC use 1-4.99 years 0.62 0.78 0.89 1.03 1.31
    OC use 5+ years 0.40 0.50 0.58 0.66 0.85
    Parity 1 birth 0.76 0.95 1.09 1.26 1.61
    Parity 2+ births 0.58 0.73 0.84 0.96 1.23
    Tubal ligation 0.74 0.93 1.07 1.23 1.57
    Endometriosis 1.53 1.91 2.20 2.54 3.24
    Family history 2.09 2.61 3.01 3.47 4.43

Note: The relative risk for various combinations can be obtained by multiplying the relevant cells in the table. For example, to obtain the relative risk for a 5+ OC user in Q1 genetic risk score who also has endometriosis, 0.40*1.53=0.61.

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