Table 10.
Relationship between site, screening status and stage.
| RS |
RI |
RNP |
LS |
LI |
LNP |
NoSCS |
NoSCI |
NoSCNS |
ReS |
ReI |
ReNP |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | % | (n) | |
| A | 25.2 | (39) | 9.7 | (19) | 8.8 | (29) | 37.7 | (79) | 17.7 | (21) | 12.1 | (28) | 38.8 | (7) | 8.3 | (2) | 12.0 | (6) | 36.4 | (63) | 32.1 | (52) | 13.2 | (41) |
| B | 41.3 | (64) | 29.4 | (58) | 29.8 | (99) | 21.1 | (44) | 29.4 | (35) | 29.6 | (68) | 16.7 | (3) | 25.0 | (6) | 14.0 | (7) | 17.9 | (31) | 17.8 | (29) | 19.0 | (59) |
| C | 27.1 | (42) | 31.5 | (62) | 32.2 | (107) | 22 | (46) | 31.1 | (37) | 26.1 | (60) | 27.8 | (5) | 29.2 | (7) | 18.0 | (9) | 27.2 | (47) | 22.8 | (37) | 30.4 | (94) |
| D | 4.5 | (7) | 22.8 | (45) | 20.8 | (69) | 9.1 | (19) | 16.8 | (20) | 22.6 | (52) | – | 29.2 | (7) | 42.0 | (21) | 5.2 | (9) | 14.3 | (23) | 18.4 | (57) | |
| UK | 1.9 | (3) | 6.6 | (13) | 8.4 | (28) | 10.1 | (21) | 5.0 | (6) | 9.6 | (22) | 16.7 | (3) | 8.3 | (2) | 14.0 | (7) | 13.3 | (23) | 13.0 | (21) | 19.0 | (59) |
| Total | 155 | 197 | 332 | 209 | 119 | 230 | 18 | 24 | 50 | 173 | 162 | 310 | ||||||||||||
LI: left colon interval; LNP: left colon non-participant; LS: left colon screen-detected; NoSCI: not otherwise specified colon interval; NoSCNP: not otherwise specified colon non-participant; NoSCS: not otherwise specified colon screen detected; ReI: rectal interval; ReNP: rectal non-participant; ReS: rectal screen-detected; RI: right colon interval; RNP: right colon non-participant; RS: right colon screen-detected.
RS vs RI: χ2 = 40.62, p < 0.0001; LS vs LI: χ2 = 20.88, p = 0.0003; NoSCS vs NoSCI: χ2 = 10.67, p = 0.0305; ReS vs ReI: χ2 = 8.173, p = 0.0854.
RI vs RNP: χ2 = 0.92, p = 0.9215; LI vs LNP: χ2 = 5.66, p = 0.2260; NoSCI vs NoSCNP: χ2 = 3.39, p = 0.4951; ReI vs ReNP: χ2 = 24.87, p = 0.0001.
RS vs RNP: χ2 = 50.41, p < 0.0001; LS vs LNP: χ2 = 45.76, p < 0.0001; NoSCS vs NoSCNP: χ2 = 13.31, p = 0.0099; ReS vs ReNP: χ2 = 44.46, p < 0.0001.