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Table 6 Logistic regression results with age, BMI, \(\sqrt {\text {PD}}\), Parity and AFB, HRT and fPCs as covariates (KARMA)

From: Breast Tissue Organisation and its Association with Breast Cancer Risk

Covariate

Estimated

Standard

P value

 

coefficient

error

 

Intercept

−8.680

2.300

2×10−04

Age

0.072

0.024

0.002

BMI

0.070

0.046

0.128

\(\sqrt {\text {PD}}\)

0.388

0.186

0.037

Parity and AFB

   

Nulliparous

   

Parity ≤2 and AFB ≤25

−0.490

0.502

0.330

Parity ≤2 and AFB >25

−0.022

0.485

0.963

Parity >2 and AFB ≤25

−0.125

0.528

0.816

Parity >2 and AFB >25

−1.331

0.857

0.121

HRT use

   

Never

   

Past

−0.772

0.347

0.026

Current

0.246

0.476

0.605

Spatial relations fPCs

   

\(\text {fPC}_{12}^{2}\)

−0.344

0.160

0.031

\(\text {fPC}_{14}^{1}\)

0.243

0.160

0.128

  1. AFB age at first birth, BMI body mass index, fPC Functional principal component, HRT hormone replacement therapy, PD percentage density