Table 1 Characteristics of the sample of CRC survivors by categories of WCRF/AICR score
WCRF/AICR score categories | |||||
|---|---|---|---|---|---|
All participants | Category 1 | Category 2 | Category 3 | Category 4 | |
Score range (men)/(women) | (0–6)/(0–7) | (0–2)/(0–3) | (2.25–2.75)/(3.25–3.75) | (3–3.75)/(4–4.75) | (4–6)/(5–7) |
No. of participants | 3,292 | 707 | 964 | 1,118 | 503 |
Age at recruitment, years [mean (SD)] | 58.2 (7.6) | 57.8 (7.2) | 58.1 (7.6) | 58.4 (7.6) | 58.7 (8.7) |
Age at CRC diagnosis, years [mean (SD)] | 64.6 (8.0) | 64.1 (7.6) | 64.7 (7.8) | 64.6 (7.8) | 65.1 (9.0) |
Follow-up time from recruitment to CRC diagnosis, years [mean (SD)] | 6.4 (3.3) | 6.3 (3.4) | 6.6 (3.3) | 6.2 (3.3) | 6.3 (3.4) |
Follow-up time from CRC diagnosis to end of follow-up, years [mean (SD)] | 4.2 (3.3) | 4.1 (3.3) | 4.1 (3.2) | 4.3 (3.4) | 4.3 (3.3) |
Deaths due to any cause [n (%)] | 1,113 (33.8) | 255 (36.1) | 333 (34.2) | 359 (32.1) | 169 (33.6) |
Deaths due to CRC [n (%)] | 872 (26.5) | 206 (29.1) | 260 (27.0) | 283 (25.3) | 123 (24.5) |
Tumor stage [%] | |||||
I | 18.3 | 19.7 | 18.4 | 18.3 | 16.3 |
II | 18.5 | 19.2 | 17.8 | 18.3 | 19.5 |
III | 26.2 | 24.9 | 28.5 | 25.8 | 24.6 |
IV | 10.2 | 12.7 | 9.1 | 9.9 | 9.5 |
Unknown | 26.7 | 23.5 | 26.1 | 27.7 | 30.0 |
Tumor grade [%] | |||||
Well differentiated | 7.3 | 8.8 | 7.9 | 6.2 | 6.8 |
Moderately differentiated | 29.0 | 29.8 | 29.5 | 28.9 | 26.8 |
Poorly/Undifferentiated | 7.6 | 6.7 | 8.0 | 8.6 | 5.8 |
Unknown | 56.2 | 54.7 | 54.7 | 56.4 | 60.6 |
Tumor site [%] | |||||
Colon – Proximal | 28.9 | 28.0 | 28.1 | 28.2 | 33.0 |
Colon – Distal | 28.7 | 30.4 | 28.8 | 28.9 | 25.5 |
Colon – Unspecified | 5.4 | 4.8 | 5.7 | 5.6 | 5.0 |
Rectum | 37.1 | 36. 8 | 37.3 | 37.3 | 36.6 |
Sex [%] | |||||
Men | 45.5 | 42.9 | 45.0 | 47.4 | 45.7 |
Women | 54.5 | 57.1 | 55.0 | 52.6 | 54.3 |
Educational level [%] | |||||
None | 5.0 | 5.5 | 6.0 | 4.3 | 3.6 |
Primary school | 32.8 | 33.8 | 34.1 | 34.8 | 24.7 |
Technical school | 22.7 | 23.9 | 23.6 | 20.5 | 24.3 |
Secondary school | 15.4 | 13.9 | 14.1 | 17.1 | 16.3 |
University degree | 19.8 | 19.8 | 18.6 | 19.4 | 23.1 |
Not specified/Unknown | 4.3 | 3.1 | 3.6 | 3.9 | 8.2 |
Smoking status [%] | |||||
Never smokers | 41.6 | 36.6 | 39.8 | 43.3 | 47.9 |
Former smokers | 34.0 | 32.5 | 34.1 | 35.4 | 32.4 |
Current smokers | 23.5 | 29.6 | 25.0 | 20.6 | 18.7 |
Unknown | 1.0 | 1.3 | 1.0 | 0.7 | 1.0 |