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Table 3 Multivariable odds ratios (OR) and 95% confidence intervals (CI) estimating the associations between rescreening status at ages 50+ (yes/no) and screening characteristics in a subset including only screening events from younger women (aged 40–49) who did not rescreen within the recommended screening interval (N = 46,420)

From: The impact of breast density notification on rescreening rates within a population-based mammographic screening program

Screening characteristics

Characteristic category

Proportion of events where a woman returned to screening after 49 (%)

Multivariable adjusted odds ratio (95% CI)

P valued

Breast density notification

Not notified

10,804/33,937 (31.8%)

Reference

 < 0.0001

 

Notified

2495/12,483 (20.0%)

0.52 (0.48, 0.55)

 

Age (years)

(continuous)

 

1.47 (1.45, 1.49)

< 0.0001

Screening round

First

5728/26,732 (21.4%)

Reference

< 0.0001

 

Second

3760/11,505 (32.7%)

1.26 (1.19, 1.34)

 
 

Third+

3811/8183 (46.6%)

1.49 (1.39, 1.60)

 

Aboriginal

No

12,966/44,775 (29.0%)

Reference

0.0062

 

Yes

333/1645 (20.2%)

0.78 (0.66, 0.93)

 

Family history (FH)

No history

10,995/38,997 (28.2%)

Reference

< 0.0001

 

Family history

1468/4657 (31.5%)

1.17 (1.07, 1.28)

 
 

Significant FH

836/2766 (30.2%)

1.13 (1.01, 1.26)

 

English at home

Yes

11,562/39,953 (28.9%)

Reference

0.5817

 

No

1737/6467 (26.9%)

0.97 (0.88, 1.07)

 

Disability

No

13,221/46,169 (28.6%)

Reference

0.5642

 

Yes

78/251 (31.0%)

0.90 (0.63, 1.28)

 

COBa

Australasia

8207/29,769 (27.6%)

Reference

< 0.0001

 

America/EU/UK

3311/9822 (33.7%)

1.21 (1.13, 1.29)

 
 

Asia

1180/4451 (26.5%)

1.02 (0.90, 1.14)

 
 

Africa

601/2378 (25.3%)

0.90 (0.79, 1.02)

 

SEIFAb

High

7938/27,291 (29.1%)

Reference

< 0.0001

 

Medium

3237/10,666 (30.3%)

0.98 (0.91, 1.04)

 
 

Low

2124/8463 (25.1%)

0.80 (0.74, 0.87)

 

ARIAc

Major city

10,117/34,988 (28.9%)

Reference

< 0.0001

 

Inner regional

1732/5150 (33.6%)

1.33 (1.22, 1.45)

 
 

Outer regional

836/3164 (26.4%)

0.92 (0.83, 1.03)

 
 

Remote

427/2107 (20.3%)

0.65 (0.57, 0.76)

 
 

Very remote

187/1011 (18.5%)

0.64 (0.51, 0.79)

 
  1. aCountry of birth
  2. bSocio-Economic Indexes for Areas
  3. cAccessibility/Remoteness Index of Australia
  4. d− 2 log likelihood ratio test