Table 1

Sample characteristics (n = 455)

Characteristicsn (%)MeanSDRange
Age, yrs455 (100)52.910.719–85
Height, cm355 (78.0)159.36.2132.1–179.1
Weight, kg433 (95.2)81.317.840.3–150.4
BMI347 (76.3)32.47.118.0–60.5
Diabetes
 Yes152 (33.4)
 No303 (66.6)
BIRADS breast density
 1140 (30.8)
 2145 (31.8)
 3161 (35.4)
 49 (2.0)
Breast cancer history
 No family history375 (82.4)
 First- or second-degree relative65 (14.3)
 Unknown15 (3.3)
Parity
 Nulliparous39 (8.6)
 Unknown3 (0.6)
 Parous413 (90.8)
  Age at first birth401 (97.1)20.34.113–35
  Number of childbirths413 (100)4.22.41–15
  Breastfeeding history
   Yes252 (61.0)
   No160 (38.7)
   Unknown1 (0.2)
Menopausal status
 Pre144 (31.7)
 Post311 (68.3)
  Age at menopause230 (74.0)44.66.522–63
  Estrogen use
   Yes146 (47.0)
   No165 (53.0)
  Hysterectomy
   Yes62 (19.9)
   No242 (77.8)
   Unknown7 (2.3)