Table 1

Demographic characteristics of study population

CharacteristicsCategoriesCases (n = 253)Controls (n = 268)Pa
Age (yrs)Mean ± SD59.12 ± 13.359.92 ± 12.30.47
≤5077 (30%)75 (28%)0.69
51–6054 (21%)53 (20%)
61–7067 (27%)70 (26%)
≥7155 (22%)70 (26%)
FHNone192 (76%)213 (79%)0.77
Mother or sister52 (20%)51 (19%)
Mother and sister5 (2%)4 (2%)
Missing4 (2%)0 (0%)
Age at menarche (yrs)≤12113 (45%)111 (41%)0.13
13–1496 (38%)125 (47%)
≥1538 (15%)30 (11%)
Missing6 (2%)2 (1%)
ParityNulliparous37 (15%)39 (15%)0.92
≥1212 (84%)229 (85%)
Missing4 (1%)0 (0%)
Age at first live birth (yrs)≤24138 (55%)111 (41%)0.002
25–2950 (20%)84 (31%)
≥30 or Nulliparous59 (23%)73 (27%)
Missing6 (2%)0 (0%)
BMI (kg/m2)Mean ± SD27.41 ± 5.5626.20 ± 5.250.01
  • a P associated with either Student’s t, χ2, or Fisher’s exact test.