Table 1 Socio-demographic and lifestyle characteristics of participants in the Melbourne Collaborative Cohort Study (MCCS– Follow-up 2)
All participants | CRC cases | Non-cases | |
|---|---|---|---|
(n = 23,586) | (n = 473) | (n = 23,113) | |
Age at entry (years, Mean ± SD) | 65.6 ± 8.7 | 70.2 ± 8.0 | 65.5 ± 8.7 |
Country of birth, n (%) | |||
Australia/New Zealand/UK | 19,376 (82.2) | 386 (81.6) | 18,990 (82.2) |
Greece/Italy | 4210 (17.8) | 87 (18.4) | 4123 (17.8) |
Highest education achieved, n (%) | |||
Primary School | 2976 (12.6) | 68 (14.4) | 2908 (12.6) |
Some high/technical school | 8970 (38.0) | 191 (40.4) | 8779 (38.0) |
Completed high/technical | 4259 (18.1) | 95 (20.1) | 4164 (18.0) |
Tertiary/diploma/degree | 7381 (31.3) | 119 (25.2) | 7262 (31.4) |
SEIFA, n (%) | |||
Ist Quintile- most disadvantaged | 3701 (15.7) | 76 (16.1) | 3625 (15.7) |
2nd Quintile | 4407 (18.7) | 90 (19.0) | 4317 (18.7) |
3rd Quintile | 3703 (15.7) | 71 (15.0) | 3632 (15.7) |
4th Quintile | 4640 (19.7) | 104 (22.0) | 4536 (19.6) |
5th Quintile - least disadvantaged | 7135 (30.3) | 132 (27.9) | 7003 (30.3) |
Smoking status, n (%) | |||
Never | 14,292 (60.6) | 270 (57.1) | 14,022 (60.7) |
Former | 8243 (34.9) | 189 (40.0) | 8054 (34.8) |
Current | 1051 (4.5) | 14 (3.0) | 1037 (4.5) |
Current alcohol intake (g/d), n (%) | |||
None | 7768 (32.9) | 168 (35.5) | 7600 (32.9) |
< 10 | 6184 (26.2) | 108 (22.8) | 6076 (26.3) |
10–20 | 4283 (18.2) | 87 (18.4) | 4196 (18.2) |
> 20 | 5351 (22.7) | 110 (23.3) | 5241 (22.7) |
Red Meat intake (g/d), n (%) | |||
< 30 | 6097 (25.9) | 120 (25.4) | 5977 (25.9) |
≥ 30-< 45 | 5901 (25.0) | 114 (24.1) | 5787 (25.0) |
≥ 45-< 75 | 5778 (24.5) | 109 (23.0) | 5669 (24.5) |
≥ 75 | 4628 (19.6) | 101 (21.4) | 4527 (19.6) |
Missing | 1182 (5.0) | 29 (6.1) | 1153 (5.0) |
Processed Meat intake (g/d), n (%) | |||
< 4 | 5788 (24.5) | 97 (20.5) | 5691 (24.6) |
≥ 4-< 8 | 5461 (23.2) | 124 (26.2) | 5337 (23.1) |
≥ 8-< 20 | 6090 (25.8) | 133 (28.1) | 5957 (25.8) |
≥ 20 | 4892 (20.7) | 87 (18.4) | 4805 (20.8) |
Missing | 1355 (5.7) | 32 (6.8) | 1323 (5.7) |
Family history of CRC, (%) | |||
No | 20,786 (88.1) | 412 (87.1) | 20,374 (88.1) |
Yes | 2359 (10.0) | 50 (10.6) | 2309 (10.0) |
Missing | 441 (1.9) | 11 (2.3) | 430 (1.9) |
Waist circumference (cm, Mean ± SD) | 90.7 ± 13.0 | 92.8 ± 12.3 | 90.7 ± 13.0 |
Dietary fiber intake (g/d, Mean ± SD) | 27.5 ± 9.2 | 26.5 ± 8.7 | 27.5 ± 9.2 |
Total energy intake (KJ/d, Mean ± SD) | 8572 ± 2267 | 8531 ± 2292 | 8572 ± 2266 |