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Table 1 Significant univariate differences in demographics between different participatory categorisations

From: Patterns of participation over four rounds of annual fecal immunochemical test-based screening for colorectal cancer: what predicts rescreening?

Demographic Study FIT Participation Pattern n (%) ChiSquare
Total: IN & OUT Sustained Participation (IN) Sustained Non-Participation (OUT)
Gender
 Males 579 (46.6) 338 (44.4) 241 (50.1) χ2(1) = 3.686, p = .055a
 Females 664 (53.4) 424 (55.6) 240 (49.9)
Total 1243 (100) 762 (100) 481 (100)  
Age
 50–54 292 (23.5) 128 (16.8) 164 (34.1) χ2(2) = 55.081, p < .001**
 55–64 607 (48.8) 387 (50.8) 220 (45.7)
 65–74 344 (27.7) 247 (32.4) 97 (20.2)
Total 1243 (100) 762 (100) 481 (100)  
Employment Status
 Not in Workforce 622 (51.2) 409 (54.8) 213 (45.4) χ2(1) = 9.681, p = .002*
 In Workforce 594 (48.8) 338 (45.2) 256 (54.6)
Total 1216 (100) 747 (100) 469 (100)  
Baseline Survey
 No prior FOBT experience 622 (51.0) 342 (45.6) 280 (59.6) χ2(1) = 22.023, p < .001**
 Prior FOBT experience 598 (49.0) 408 (54.4) 190 (40.4)
Total 1220 (100) 750 (100) 470 (100)  
  Total: IN & CHANGE Sustained Participation (IN) Changeable (CHANGE)  
Marital Status
 Unmarried 308 (21.5) 147 (19.4) 161 (23.8) χ2(1) = 3.728, p = .053a
 Married/DeFacto 1125 (78.5) 609 (80.6) 516 (76.2)
Total 1433 (100) 756 (100) 677 (100)
Age
 50–54 321 (22.2) 128 (16.8) 193 (28.2) χ2(2) = 30.255, p < .001**
 55–64 713 (49.3) 387 (50.8) 326 (47.6)
 65–74 413 (28.5) 247 (32.4) 166 (24.2)
Total 1447 (100) 762 (100) 685 (100)  
Employment Status
 Not in Workforce 714 (50.6) 409 (54.8) 305 (45.9) χ2(1) = 10.587, p = .001**
 In Workforce 697 (49.4) 338 (45.2) 359 (54.1)
Total 1411 (100) 747 (100) 664 (100)  
Baseline Survey
 No prior FOBT experience 687 (48.4) 342 (45.6) 345 (51.6) χ2(1) = 4.809, p = .028*
 Prior FOBT experience 732 (51.6) 408 (54.4) 324 (48.4)
Total 1419 (100) 750 (100) 669 (100)  
  Total: CHANGE & OUT Changeable (CHANGE) Sustained Non-Participation (OUT)  
Baseline Survey
 No prior FOBT experience 625 (54.9) 345 (51.6) 280 (59.6) χ2(1) = 6.824, p = 0.009*
 Prior FOBT experience 514 (45.1) 324 (48.4) 190 (40.4)
Total 1139 (100) 669 (100) 470 (100)  
  Total: IN & CS Sustained Participation (IN) Sustained Change (CS)  
Gender
 Males 538 (47.3) 338 (44.4) 200 (53.3) χ2(1) = 7.767, p = .005*
 Females 599 (52.7) 424 (55.6) 175 (46.7)
Total 1137 (100) 762 (100) 375 (100)  
Age
 50–54 232 (20.4) 128 (16.8) 104 (27.7) χ2(2) = 18.526, p < 001**
 55–64 551 (48.5) 387 (50.8) 164 (43.7)
 65–74 354 (31.1) 247 (32.4) 107 (28.5)
Total 1137 (100) 762 (100) 375 (100)  
  Total: OUT & CS Sustained Non-Participation (OUT) Sustained Change (CS)  
Age
 50–54 268 (31.3) 164 (34.1) 104 (27.7) χ2(2) = 9.103, p = .011*
 55–64 384 (44.9) 220 (45.7) 164 (43.7)
 65–74 204 (23.8) 97 (20.2) 107 (28.5)
Total 856 (100) 481 (100) 375 (100)
Baseline Survey
 No prior FOBT experience 460 (55.2) 280 (59.6) 180 (49.5) χ2(1) = 8.096, p = .004*
 Prior FOBT experience 374 (44.8) 190 (40.4) 184 (50.5)
Total 834 (100) 470 (100) 364 (100)  
  Total: CI & CS Intermittent (CI) Sustained Change (CS)  
Gender
 Males 336 (49.1) 136 (43.9) 200 (53.3) χ2(1) = 5.707, p = .017*
 Females 349 (50.9) 174 (56.1) 175 (46.7)
Total 685 (100) 310 (100) 375 (100)  
Age
 50–54 193 (28.2) 89 (28.7) 104 (27.7) χ2(2) = 8.970, p = .011*
 55–64 326 (47.6) 162 (52.3) 164 (43.7)
 65–74 166 (24.2) 59 (19.0) 107 (28.5)
Total 685 (100) 310 (100) 375 (100)  
  Total: IN & CSIO Sustained Participation (IN) Sustained Change (in to out) (CSIO)  
Gender
 Males 440 (46.1) 338 (44.4) 102 (52.8) χ2(1) = 4.135, p = .042*
 Females 515 (53.9) 424 (55.6) 91 (47.2)
  955 (100) 762 (100) 193 (100)  
Age
 50–54 182 (19.1) 128 (16.8) 54 (28.0) χ2(2) = 14.240, p < .001**
 55–64 463 (48.5) 387 (50.8) 76 (39.4)
 65–74 310 (32.5) 247 (32.4) 63 (32.6)
Total 955 (100) 762 (100) 193 (100)  
Tertile of Economic Disadvantage
 High Disadvantage 206 (21.6) 156 (20.5) 50 (25.9) χ2(2) = 8.432, p = .015*
 Medium Disadvantage 329 (34.5) 253 (33.2) 76 (39.4)
 Low Disadvantage 419 (43.9) 352 (46.3) 67 (34.7)
Total 954 (100) 761 (100) 262 (100)  
Baseline Survey
 No prior FOBT experience 454 (48.5) 342 (45.6) 112 (60.2) χ2(1) = 12.167, p < .001**
 Prior FOBT experience 482 (51.5) 408 (54.4) 74 (39.8)
Total 936 (100) 750 (100) 186 (100)  
  Total: CSOI & OUT Sustained Change (out to in) (CSOI) Sustained Non-Participation (OUT)  
Baseline Survey
 No prior FOBT experience 348 (53.7) 68 (38.2) 280 (59.6) χ2(1) = 22.8671, p < .001**
 Prior FOBT experience 300 (46.3) 110 (61.8) 190 (40.4)
Total 648(100) 178 (100) 470 (100)  
  Total: CSIO & CSOI Sustained Change (in to out) (CSIO) Sustained Change (out to in) (CSOI)  
Employment Status
 Not in Workforce 179 (49.0) 106 (56.7) 73 (41.0) χ2(1) = 8.348, p = .004*
 In Workforce 186 (51.0) 81 (43.3) 105 (59.0)
Total 365 (100) 187 (100) 178 (100)  
Tertile of Economic Disadvantage
 High Disadvantage 86 (22.9) 50 (25.9) 36 (19.8) χ2(2) = 9.619, p = .008*
 Medium Disadvantage 130 (34.7) 76 (39.4) 54 (29.7)
 Low Disadvantage 159 (42.4) 67 (34.7) 92 (50.5)
Total 375 (100) 193 (100) 182 (100)  
Education Status
 Lower education (completed high school or lower) 192 (52.6) 110 (59.1) 82 (52.6) χ2(1) = 5.977, p = .014*
 Higher education (>high school) 173 (47.4) 76 (40.9) 97 (54.2)
Total 365 (100) 186 (100) 179 (100)  
Baseline Survey
 No prior FOBT experience 180 (49.5) 112 (60.2) 68 (38.2) χ2(1) = 16.762, p < .001**
 Prior FOBT experience 184 (50.5) 74 (39.8) 110 (61.8)
Total 364 (100) 186 (100) 178 (100)  
  1. *p < .05; **p < .001
  2. atrend towards significance
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