Table 4 Factors associated with participants referral rates

Sex

 Males

29 (3.7%)

755 (96.3%)

 < 0.001

 Females

3 (0.4%)

664 (99.6%)

Residency

 Urban

17 (3%)

554 (97%)

0.107

 Rural

15 (1.7%)

865 (98.3%)

Education

 High level

26 (3.6%)

695 (96.4%)

 < 0.001

 Low level

6 (0.8%)

724 (99.2%)

Currently employed

 Yes

26 (3.5%)

727 (96.5%)

0.001

 No (including retired)

6 (0.9%)

688 (99.1%)

Income level

 Middle or high

22 (3.8%)

559 (96.2%)

0.001

 Low

10 (1.1%)

860 (98.9%)

Do you know any relative with pre-cancerous polyp?

 Yes

3 (8.1%)

34 (91.1%)

0.046*

 No

29 (2.1%)

1385 (97.9%)

Do you know any relative with CRC?

 Yes

6 (6.3%)

90 (93.8%)

0.005

 No

26 (1.9%)

1329 (98.1%)

Do you know others diagnosed with CRC?

 Yes

14 (5.9%)

225 (94.1%)

 < 0.001

 No

18 (1.5%)

1194 (98.5%)

Do you know anyone died of CRC?

 Yes

14 (6.1%)

216 (93.9%)

 < 0.001

 No

18 (1.5%)

1203 (98.5%)

Have you been diagnosed with colorectal disease?

 Yes

17 (5.8%)

275 (94.2%)

 < 0.001

 No

15 (1.3%)

1144 (98.7%)

Have you had discussions with your physician about cancer in general?

 Yes

26 (9.1%)

261 (90.9%)

 < 0.001

 No

6 (0.5%)

1158 (99.5%)

Have you had discussions with your physician about cancer screening?

 Yes

26 (10.1%)

232 (89.9%)

 < 0.001

 No

6 (0.5%)

1187 (99.5%)

Have you had discussions with your physician about CRC?

 Yes

23 (25.8%)

66 (74.2%)

 < 0.001

 No

9 (0.7%)

1353 (99.3%)

Have you had discussions with your physician about CRC screening?

 Yes

22 (35.5%)

40 (64.5%)

 < 0.001*

 No

10 (0.7%)

1379 (99.3%)

Knowledge

 Actual knowledge about CRC screening

  Good knowledge

17 (37%)

29 (63%)

 < 0.001

  Poor knowledge

15 (1.1%)

1390 (98.9%)

 Participants who knew the start age for CRC screening

  Correct

16 (8.8%)

165 (91.2%)

 < 0.001*

  Incorrect

16 (1.3%)

1254 (98.7%)

 Participants who knew the frequency for CRC screening

  Correct

13 (13.4%)

84 (86.6%)

 < 0.001*

  Incorrect

19 (1.4%)

1335 (98.6%)

 Participants who knew the tool for CRC screening

  Correct

19 (20.4%)

74 (79.6%)

 < 0.001*

  Incorrect

13 (1%)

1345 (99%)

 Participants who approved people should be screened for CRC even without experiencing symptoms

  Yes

25 (3.7%)

659 (96.3%)

 < 0.001

  No

7 (0.9%)

760 (99.1%)

 Participants who approved that early-stage CRC can be asymptomatic

  Yes

26 (4.2%)

590 (95.8%)

 < 0.001

  No

6 (0.7%)

829 (99.3%)

 Participants who wanted to obtain more information about CRC screening

  Yes

31 (2.6%)

1140 (97.4%)

0.019

  No

1 (0.4%)

279 (99.6%)

Attitude

 Attitude towards CRC screening

  Positive attitude

29 (3%)

936 (97%)

0.003

  Negative attitude

3 (0.6%)

483 (99.4%)

 Are you willing to undergo screening if recommended by your doctor

  Yes

26 (2.9%)

881 (97.1%)

0.027

  No

6 (1.1%)

538 (98.9%)

 I will only have CRC if it becomes mandatory

  Yes

6 (1.3%)

459 (98.7%)

0.103

  No

26 (2.6%)

960 (97.4%)

 I doubt the effect of CRC screening on early detection of CRC

  Yes

5 (2.3%)

211 (97.7%)

0.805*

  No

27 (2.2%)

1208 (97.8%)