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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