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Table 4 Multivariable analysis of the determinants of screening in or outside the population BC screening

From: Coverage determinants of breast cancer screening in Flanders: an evaluation of the past decade

Variable Model 1a Model 2b
Adjusted OR (95% CI) P value Adjusted OR (95% CI) P value
Age group   < 0.001   < 0.001
 50–54 year ref   ref  
 55–59 year 1.039 (1.015–1.065)   1.207 (1.179–1.235)  
 60–64 year 1.018 (0.994–1.042)   1.217 (1.190–1.244)  
 65–69 year 0.928 (0.907–0.949)   1.142 (1.117–1.167)  
BC screening   < 0.001   < 0.001
 Population BC screening ref   ref  
 Non-population BC screening 0.224 (0.220–0.229)   0.303 (0.295–0.312)  
Population and households
 number of residents (105 residents) 0.983 (0.965–1.001) 0.059 0.996 (0.985–1.007) 0.444
 population density (1000 residents per km2) 0.929 (0.906–0.952) < 0.001 0.647 (0.634–0.660) < 0.001
 same address as last year (compared to all residents) 1.008 (0.998–1.018) 0.123 1.005 (0.995–1.015) 0.309
 non-Belgian nationality (compared to all residents) 1.0005 (0.9984–1.0025) 0.654 0.9997 (0.9982–1.0012) 0.719
 average household size 0.894 (0.809–0.988) 0.028 0.580 (0.522–0.645) < 0.001
Welfare and poverty
 women with equivalent living wages (compared to all women) 0.972 (0.934–1.012) 0.164 0.987 (0.947–1.029) 0.532
 share of borrowers with at least one overdue loan (compared to all borrowers) 0.989 (0.976–1.002) 0.092 0.989 (0.978–1.001) 0.067
 job seekers (compared to all residents) 1.073 (1.051–1.095) < 0.001 1.250 (1.226–1.273) < 0.001
Health can handicap
 diabetes (compared to all residents) 0.964 (0.952–0.976) < 0.001 0.985 (0.973–0.997) 0.016
 dental visit (compared to all residents) 1.005 (1.003–1.007) < 0.001 1.016 (1.015–1.018) < 0.001
Interaction terms
  age group × BC screening     < 0.001
  NPS × 50–54 year    ref  
  NPS × 55–59 year    0.668 (0.642–0.694)  
  NPS × 60–64 year    0.612 (0.589–0.636)  
  NPS × 65–69 year    0.554 (0.533–0.576)  
 NPS × population density    2.528 (2.455–2.606) < 0.001
 NPS × average household size    3.797 (3.199–4.508) < 0.001
 NPS × job seekers    0.641 (0.624–0.658) < 0.001
 NPS × status of diabetes    0.942 (0.921–0.962) < 0.001
 NPS × dental visit    0.969 (0.967–0.972) < 0.001
  1. amodel 1: multivariable regression model including all significant covariates of the univariate regression
  2. bmodel 2: multivariable regression model including two-way interaction terms between screening strategies and the significant covariates in model 1
  3. NPS Non-population BC screening