Table 3.

Linear regression coefficients, 95% CIs, and P values for association between age at SCC diagnosis and AFI and number of sex partners at age <20 y

CharacteristicsnUnivariate model*
Adjusted for each other
Adjusted for each other and birth year
Multivariate model
Coefficient (95% CI)Coefficient (95% CI)Coefficient (95% CI)Coefficient (95% CI)
AFI (y)
    ≥1966ReferenceReferenceReferenceReference
    15-18121-3.5 (-5.2 to -1.9)-3.0 (-5.3 to -0.7)-3.1 (-5.0 to -1.1)-2.6 (-4.6 to -0.6)
    <1548-5.8 (-8.0 to -3.5)-4.0 (-7.0 to -1.0)-4.1 (-6.7 to -1.4)-3.1 (-5.8 to -0.5)
No. sex partners at age <20 y
    None32ReferenceReferenceReferenceReference
    198-1.1 (-3.5 to 1.3)1.1 (-1.8 to 3.9)1.2 (-1.3 to 3.7)0.6 (-1.9 to 3.1)
    2-4136-3.0 (-5.3 to -0.7)0.01 (-3.2 to 3.2)1.0 (-1.8 to 3.7)0.6 (-2.2 to 3.3)
    5-1448-5.6 (-8.3 to -2.9)-2.2 (-5.8 to 1.3)-0.1 (-3.2 to 3.1)-0.5 (-3.6 to 2.6)
    ≥1512-7.2 (-11.2 to -3.2)-3.4 (-8.2 to 1.5)-0.6 (-4.8 to 3.6)-1.0 (-5.2 to 3.2)
  • * All models presented include only cases with information on all characteristics included in the multivariate model.

  • Adjusted for each other birth year, age at first menses (age <14/≥14 y), and annual income at diagnosis (<$30,000/≥$30,000).