Table 2

Comparison of differences in change of mammographic measures between premenopausal and pre-postmenopausal subjects: results of multiple regression analysis

Mammographic measureUnadjusted estimatePaAdjusted estimatebPa
Percent dense (%)−3.260.004−3.050.01
Dense area (cm2)−3.390.007−3.310.01
Nondense area (cm2)4.370.014.150.02
Total area (cm2)0.970.440.840.55
  • a Ps are based on a paired t test of all 202 pairs.

  • b Adjustment for age at menarche, age at first birth, parity, number of births, previous use and duration of oral contraceptives, smoking status and duration, height, and weight.