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Table 5 Multivariable logistic regression for association between individual demographic characteristics and breast cancer stage at diagnosis (stage 0 & I, stage II, III & IV), stratified by area-based SES*

From: Breast cancer stage at diagnosis and area-based socioeconomic status: a multicenter 10-year retrospective clinical epidemiological study in China

Variable

High SES areas

Low SES areas

 

OR (95%CI)

Wald (P)

OR (95%CI)

Wald (P)

Age at Diagnosis (Years)

    

   ≤ 40

1.00

 

1.00

 

   40-69

0.94 (0.29-3.09)

0.01 (0.92)

1.18 (0.43-3.23)

0.10 (0.75)

   ≥ 70

1.02 (0.70-1.51)

0.02 (0.90)

1.40 (0.85-2.29)

1.75 (0.19)

Body Mass Index (kg/m 2 )

    

   ≤ 24.99

1.00

 

1.00

 

   ≥ 25.00

1.37 (0.92-2.06)

2.39 (0.12)

1.09 (0.40-12.97)

0.03 (0.86)

Occupation

    

   Homemaker

1.00

 

1.00

 

   Manual worker

0.81 (0.33-2.02)

0.20 (0.65)

0.18 (0.05-0.64)

6.99 (0.01)

   White-collar worker

0.77 (0.33-1.80)

0.37 (0.54)

0.26 (0.08-0.88)

4.66 (0.03)

   Other

1.21 (0.45-3.25)

0.14 (0.70)

0.18 (0.05-0.65)

6.85 (0.01)

Education

    

   University and above

1.00

 

1.00

 

   High school

2.89 (1.30-6.44)

6.76 (0.01)

0.42 (0.07-2.36)

0.97 (0.32)

   Middle school

2.77 (132-5.79)

7.27 (0.01)

0.97 (0.42-2.21)

0.01 (0.94)

   Primary school

1.87 (0.99-3.64)

3.43 (0.06)

0.98 (0.47-2.05)

0.01 (0.96)

   None

1.64 (0.87-3.08)

2.34 (0.13)

0.74 (0.40-1.36)

0.93 (0.34)

Marital Status

    

   Married

1.00

 

1.00

 

   Single

6.27 (0.81-48.76)

3.08 (0.08)

1.01 (0.11-9.51)

0.001 (0.99)

   Widowed/Divorced

1.18 (0.14-10.06)

0.02 (0.88)

0.49 (0.15-1.62)

1.38 (0.24)

ER/PR status

    

   ER+&PR+

1.00

 

1.00

 

   ER+&PR-

0.97 (0.50-1.90)

0.01 (0.93)

1.10 (0.54-2.23)

0.07 (0.79)

   ER-&PR+

1.57 (0.83-2.95)

1.96 (0.16)

0.73 (0.36-1.51)

0.70 (0.40)

   ER-&PR-

1.04 (0.69-1.56)

0.04 (0.85)

1.31 (0.81-2.11)

1.19 (0.28)

  1. *: Education information for 50.3% of cases in the highest SES area was unknown, so we did not analyze the effect of individual demographic characteristics in this subgroup