Table 2

Results of multivariate association analyses for AIB1 and other risk factors

FactorCasesControlsOR (95% CI)a
AIB1 <28b66551.0c
AIB1 ≥28b2121151.59 (1.03–2.47)
AIB1 <29b2061501.0c
AIB1 ≥29b72202.85 (1.64–4.96)
Menarche <13128671.0c
Menarche ≥131501030.82 (0.55–1.23)
Parous2411561.0c
Nulliparous37140.67 (0.27–1.67)
Age at first live birth <301931451.0c
Age at first live birth ≥30 or nulliparous85253.06 (1.52–6.16)
  • a Adjusted for age, year of birth, age at first live birth, age at menarche, parity, or smoking.

  • b Genotype <28, all genotypes containing at least one allele with 27 or fewer polyglutamine repeats; genotype <29, all genotypes containing at least one allele with 28 or fewer polyglutamine repeats; genotype ≥28 or ≥29, genotypes with no allele of 27 or fewer repeats or 28 or fewer repeats, respectively.

  • c Reference group.