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Table 1 Characteristics of the cohort

From: Non-invasive optical spectroscopic monitoring of breast development during puberty

Characteristic Number Percentage
Age (years)
 10 to <12 63 61.8
 12 to <14 25 24.5
  > = 14 14 13.7
Mean age = 12.03, SD = 1.43, minimum = 10.01, maximum = 15.38
BMI
 10 to <15 6 5.9
 15 to <20 71 69.6
 20 to <25 19 18.6
 25+ 6 5.9
Mean BMI = 18.58, SD = 3.11, minimum = 12.46, maximum = 33.18
Breast Tanner stage
 1 16 15.6
 2 31 30.4
 3 31 30.4
 4 18 17.7
 5 6 5.9
Breast cancer risk category
 BCRS <0.12 41 40.2
 0.12  <= BCRS <0.2 46 45.1
 BCRS > = 0.2 15 14.7
Mean BCRS = 0.15, SD = 0.05, minimum = 0.11, maximum = 0.30
  1. BMI body mass index, BCRS breast cancer risk score