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Table 2 Characteristics of the population who received an offer for CRC screening (n = 6008)

From: To do or not to do – a survey study on factors associated with participating in the Danish screening program for colorectal cancer

Characteristics Participants Non- participants Total  
n % N % N % p-value*
Overall (row-%) 4971 82.62 1037 17.38 6008 100.00  
Sex
 Female 2701 54.35 475 45.81 3176 52.86 < 0.0001
Age groups
 50–60 1916 38.54 483 46.58 2399 39.93  
 61–70 1890 38.02 357 34.43 2247 37.40  
 71–80 1165 23.44 197 19.00 1362 22.67 < 0.0001
Educationa
 Basic school 919 18.49 192 18.51 1111 18.49  
 High school 2195 44.16 436 42.04 2631 43.79  
 Vocational education 276 5.55 37 3.57 313 5.21  
 Medium education 1114 22.41 239 23.05 1353 22.52  
 High education 467 9.39 133 12.83 600 9.99 0.001
Average income per year (Euro)
 < 20,000 294 5.91 90 8.68 384 6.39  
 20,000 – 33,333 1508 30.34 353 34.04 1861 30.98  
 33,334 – 46,666 1505 30.28 295 28.45 1800 29.96  
 46,667 – 66,666 1158 23.30 209 20.15 1367 22.75  
 > 66,666 506 10.18 90 8.68 596 9.92 < 0.0001
Body mass index
 < 25 2062 41.48 405 39.05 2467 41.06  
 25–30 (overweight) 1933 38.89 373 35.97 2306 38.38  
 > 30 (obese) 892 17.94 232 22.37 1124 18.71 0.001
 Unknownb 84 1.69 27 2.60 111 1.85  
Self-assessed health
 Good health 4265 85.80 859 82.84 5124 85.29 0.014
Health literacy score
 Sufficient (<  8) 4106 83.15 839 81.46 4945 82.86 0.19
Willingness to take health risks
 Low 3772 75.99 719 69.33 4491 74.84  
 Moderate 820 16.52 207 19.96 1027 17.11  
 High 372 7.49 111 10.70 483 8.05 < 0.0001
Smoking status
 Never smoked 2986 60.06 528 50.92 3514 58.49  
 Quit smoking 1342 27.00 277 26.71 1619 26.95  
 Smoker 643 12.94 232 22.37 875 14.56 < 0.0001
Self-assessed nutrition
 Healthy and very healthy 2910 58.54 537 51.78 3447 57.37 < 0.0001
Physical activity
 5 times a week and more 718 14.44 140 13.50 858 14.28 0.43
Alcohol consumption
 None 1109 22.31 298 28.74 1407 23.42  
 1 to 14 units per week 2462 49.53 442 42.62 2905 48.34  
  > 14 units per week 1400 28.16 297 28.64 1697 28.25 < 0.0001
  1. *Chi square test comparing people participating and not participating in screening
  2. a “medium education” includes tertiary and bachelor’s education, and “high education” includes master and PhD-educations
  3. b no information on weight or height available, this group was included in the analysis to omit selection bias due to missings