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Table 2 Association between breast Tanner stage and age, BMI, BCRS, and OS principal component scores

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

 

Breast Tanner stage

 

Predictor

1

2

3

4

 
 

Mean

Mean

Mean

Mean

P value

 Age

11.05

11.19

12.32

13.58

<0.01

 BMI

16.50

17.31

18.90

19.70

<0.01

 BCRS

1.70

2.04

1.80

1.88

0.23

 PC1

0.190

0.001

0.102

−0.368

0.26

 PC2

0.33

0.31

−0.23

−0.41

<0.01

 PC3

−0.62

0.11

0.15

0.10

<0.01

 PC4

0..04

−0.04

−0.03

0.14

0.84

 PC5

−0.07

−0.08

0.01

0.22

0.60

 PC6

−0.34

−0.27

0.28

0.24

<0.01

 PC7

−0.23

−0.20

0.20

0.24

0.06

 PC8

−0.12

0.05

−0.01

0.25

0.60

  1. BMI body mass index, BCRS breast cancer risk score, PC principal component, OS optical spectroscopy