Table 3. Temporal trends in TNM stage of colorectal cancer at presentation with the introduction of screening (non-metastatic disease only).
|
Prescreening |
Screening introduction |
Postscreening |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Early |
Late |
Early |
Late |
|||||||||||
|
All patients |
2003–2004 |
2005–2006 |
2007–2008 |
2009–2010 |
2011–2012 |
|||||||||
| n (10400) | % | n (1999) | % | n (1992) | % | n (2072) | % | n (2118) | % | n (2219) | % | P-value | ||
|
Stage | ||||||||||||||
| I | 2134 | 17 | 348 | 17 | 329 | 17 | 367 | 18 | 461 | 22 | 629 | 28 | ||
| II | 4124 | 40 | 791 | 40 | 803 | 40 | 884 | 42 | 834 | 40 | 812 | 37 | ||
| III | 4142 | 43 | 860 | 43 | 860 | 43 | 821 | 40 | 823 | 39 | 778 | 35 | ⩽0.001 | |
Abbreviation: TNM=tumour node metastasis.