Table 3 Adjusted odds ratio (with corresponding 95% confidence limits) of high-risk breast cancer among 11 685 premenopausal and 17 080 postmenopausal women diagnosed with breast cancer in Denmark, 1983–1999

From: The relation between socioeconomic and demographic factors and tumour stage in women diagnosed with breast cancer in Denmark, 1983–1999

 

Premenopausal women ( N =11 685)

Postmenopausal women ( N =17 080)

 

Odds ratio

95% confidence limits

Odds ratio

95% confidence limits

Age

 –44 years (per year)

0.95

0.93,0.96

  

 45–69 years (per year)

1.01

1.00,1.03

0.99

0.98,1.00

 

P-value <0.001

P-value=0.04

Highest attained education

 Basic school/high school

1

 

1

 

 Vocational training

0.92

0.82,1.04

0.92

0.84,1.01

 Higher education

0.95

0.82,1.09

0.83

0.73,0.94

 Unknown

0.80

0.58,1.11

0.90

0.78,1.04

 

P-value=0.37

P-value=0.019

Occupation

 Higher functionary

1.00

0.79,1.26

1.03

0.90,1.19

 Lower functionary

1.12

0.89,1.40

0.98

0.85,1.14

 Skilled worker

1.14

0.88,1.48

1.10

0.91,1.34

 Unskilled worker

1.03

0.82,1.29

1.10

0.94,1.28

 Unemployed

1.04

0.82,1.31

0.97

0.87,1.10

 Pensioner

1

 

1

 
 

P-value=0.58

P-value=0.64

Disposable income a

 –99 999

1.16

0.98,1.37

1.27

1.12,1.44

 100 000–129 999

1.05

0.91,1.21

1.18

1.04,1.33

 130 000–164 999

1.09

0.96,1.25

1.12

1.00,1.26

 165 000–

1

 

1

 
 

P-value=0.30

P-value=0.003

Cohabiting status

 Living with partner

1

 

1

 

 Single

0.94

0.82,1.07

1.01

0.92,1.10

 

P-value=0.35

P-value=0.88

Children living at home b

 0

1

 

1

 

 1

0.94

0.83,1.07

1.29

0.96,1.72

 2–5

1.13

0.96,1.33

0.70

0.39,1.25

 

P-value=0.06

P-value=0.11

Housing status

 Owner-occupied

1

 

1

 

 Rental

0.93

0.81,1.06

0.97

0.88,1.07

 

P-value=0.27

P-value=0.55

Size of dwelling

 0–99 m2

1

 

1

 

 100–124 m2

0.98

0.84,1.13

1.00

0.90,1.12

 125–149 m2

0.92

0.79,1.08

1.01

0.88,1.14

 150–m2

0.92

0.79,1.07

0.93

0.82,1.05

 

P-value=0.62

P-value=0.52

Degree of urbanicity

 Capital area

0.96

0.82,1.13

0.92

0.81,1.05

 Suburban area

0.93

0.81,1.08

0.80

0.72,0.90

 Provincial cities

1

 

1

 

 Rural areas

1.06

0.95,1.18

1.13

1.02,1.24

 

P-value=0.38

P-value <0.001

Mammography screening available

 Not available

1

 

1

 

 Availablec

0.65

0.47,0.90

0.54

0.49–0.61

 

P-value=0.009

P-value <0.001

Comorbidity d

 0

1

 

1

 

 1

0.86

0.67,1.10

0.96

0.83,1.10

 2–

0.94

0.55,1.59

1.19

0.93,1.52

 

P-value=0.48

P-value=0.30

  1. High-risk breast cancer: tumor size >2.0 cm, positive axillary lymph nodes, high histologic grade and estrogen receptor negative; P-values from Wald's test.
  2. aHousehold disposable income in Danish crowns (DKK) after taxation and interest adjusted for number of persons in household.
  3. bChildren aged 0–17 years.
  4. cMammography screening was offered to all women aged 50–69 years living in Copenhagen municipality from 1991, Frederiksberg municipality from 1992 and Funen County from 1994.
  5. dPresence of these disorders as defined in Charlson index was defined as an in- or outpatient contact with one of the below diagnosis from 1978 to half a year prior to the diagnosis of breast cancer; Score 1: myocardial infarction, congestive heart failure, peripheral vascular disease, cerebrovascular disease, dementia, chronic pulmonary disease, connective tissue disease, ulcer disease, mild liver disease, diabetes type1, diabetes type2; Score 2: hemiplegia, moderate to severe renal disease, diabetes with end organ damage type1, diabetes with end organ damage type2; Score 3: moderate to severe liver disease; Score 6: AIDS; All cancer related diagnoses were excluded since first primary cancers only are in DBCG.
Back to article page