Table 3 Association between plant-based diet indices and breast cancer by menopausal status

Premenopausal

PDI

T₁ (≤ 91)

26/48

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

T₂ (92–105)

21/55

0.705

0.352–1.410

0.323

0.787

0.367–1.686

0.537

T₃ (≥ 106)

14/49

0.527

0.246–1.130

0.100

0.843

0.327–2.171

0.723

hPDI

T₁ (≤ 91)

24/49

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

T₂ (92–105)

25/61

0.837

0.426–1.643

0.605

0.858

0.411–1.790

0.858

T₃ (≥ 106)

12/42

0.583

0.260–1.306

0.190

0.660

0.272–1.607

0.660

uPDI

T₁ (≤ 94)

16/56

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

T₂ (95–105)

20/57

1.228

0.578–2.610

0.593

1.092

0.479–2.491

0.834

T₃ (≥ 106)

25/39

2.244

1.061–4.744

0.034

2.546

1.051–6.167

0.038

Postmenopausal

PDI

T₁ (≤ 91)

25/38

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

T₂ (92–105)

23/32

1.092

0.523–2.281

0.814

1.492

0.640–3.477

0.354

T₃ (≥ 106)

24/43

0.848

0.417–1.726

0.650

1.132

0.452–2.840

0.791

hPDI

T₁ (≤ 91)

34/31

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

T₂ (92–105)

17/37

0.419

0.197–0.889

0.023

0.342

0.141–0.828

0.017

T₃ (≥ 106)

21/45

0.425

0.209–0.866

0.018

0.262

0.107–0.639

0.003

uPDI

T₁ (≤ 94)

26/42

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

T₂ (95–105)

16/31

0.834

0.383–1.813

0.646

0.778

0.328–1.847

0.569

T₃ (≥ 106)

30/40

1.212

0.613–2.393

0.581

0.870

0.364–2.081

0.755