Table 3 Independent predictors for breast cancer in all patients of the two cohorts in the first year of follow-up.

Cohort

Comparison

1 (reference)

1 (reference)

COP

0.52 (0.12–2.21)

0.378

0.52 (0.12–2.21)

0.377

Age (years)

20–34

1 (reference)

1 (reference)

35–49

3.98 (1.27–12.50)

0.018

3.70 (1.12–12.22)

0.032

50–64

11.68 (3.60–37.93)

 < 0.001

8.56 (2.49–29.48)

 < 0.001

 ≥ 65

5.18 (0.58–46.38)

0.141

1.87 (0.09–37.46)

0.683

Comorbidity

Hypertension

6.85 (2.35–19.94)

 < 0.001

2.87 (0.66–12.46)

0.161

Diabetes

8.35 (1.14–61.50)

0.037

2.10 (0.16–27.30)

0.571

Hyperlipidemia

10.50 (1.42–77.49)

0.024

1.87 (0.10–36.86)

0.679

Monthly income (NTD)

 < 20,000

0.44 (0.10–1.96)

0.282

0.50 (0.11–2.27)

0.369

20,000–40,000

0.61 (0.13–2.86)

0.528

0.66 (0.13–3.23)

0.607

 > 40,000

1 (reference)

1 (reference)

Geographic region

North

1 (reference)

1 (reference)

Center

0.61 (0.18–2.10)

0.432

0.66 (0.19–2.32)

0.522

South

1.10 (0.45–2.68)

0.843

1.06 (0.43–2.62)

0.900

East

–

–

–

–