Table 1.

Participants’ characteristics

	Participants at Moderately increased-risk of CRC (n=1236)		Participants at Potentially high-risk of CRC (n=391)		p value*	Total (n=1627)
Category	n	%	n	%		n	%
Age group
Mean age, years (SD)	45.5 (18.2)		48.5 (16.3)		0.01	46.2 (17.8)
18-24	195	15.7	33	8.4		228	14.0
25-29	124	10.0	26	6.6		150	9.2
30-34	95	7.7	29	7.4		124	7.6
35-39	90	7.3	32	8.1		122	7.5
40-44	111	8.9	33	8.4		144	8.9
45-49	121	9.8	51	13.0		172	10.5
50-54	107	8.6	52	13.3		159	9.8
55-59	94	7.6	41	10.5		135	8.3
60-64	76	6.1	22	5.6		98	6.0
65-70	77	6.2	29	7.4		106	6.5
>70	146	11.8	43	11.0		189	11.6
Sex
Female	655	53.0	224	57.1	0.1	879	53.9
Male	581	47.0	167	42.7		748	45.9
Tertiary education
No	861	69.6	293	74.9	0.04	1154	70.9
Yes	375	30.3	98	25.1		473	29.0
Marital status
Married/living as	376	30.4	85	21.7	0.01	1166	71.7
Not married	860	69.6	306	78.2		461	28.3
Physical activity
No	858	69.4	296	75.7	0.01	1154	70.9
Yes	378	30.6	95	24.2		473	29.0
BMI
≥ 25	618	50.0	203	51.8	0.5	806	49.5
< 25	618	50.0	188	48.0		821	50.4
Smoking status
Never smoke	523	42.3	167	42.6	0.9	690	42.4
Ex-smoker	409	33.1	128	32.7		537	33.0
Current smoker	304	24.6	96	24.5		400	24.6
Years in Australia
≤20 years	203	12.5	54	13.8	0.3	203	12.5
> 20 years	1425	87.5	337	86.2		1424	87.5
Irritable bowel syndrome
No	1176	95.2	370	94.6	0.6	1546	95.0
Yes	60	4.8	21	5.4		81	4.9
Diabetes
No	1189	96.2	369	94.3	0.1	1558	95.7
Yes	47	3.8	22	5.6		69	4.2
High cholesterol
No	1014	82.1	308	78.8	0.1	1322	81.2
Yes	222	17.9	83	21.1		305	18.7
History of other cancers
No	1172	94.8	370	94.6	0.8	1542	94.7
Yes	64	5.2	83	5.4		85	5.22

^*Pearson χ² test of independence between the two risk groups