Screen-detected (N = 1181) | Interval (N = 319) | ORa(95% CI) | Symptomatic (N = 406) | ORa(95% CI) | |
---|---|---|---|---|---|
Characteristics | n (%) | n (%) | n (%) | ||
Age at diagnosis a | |||||
50-59 | 450(38.1) | 122(38.2) | 1.00(reference) | 165(40.6) | 1.00(reference) |
60-69 | 731(61.9) | 197(61.8) | 0.90 (0.58-1.40) | 241(59.4) | 1.11(0.74-1.68) |
Last screen a | |||||
OBSP | 427(36.2) | 123(38.6) | 1.00(reference) | -- | -- |
OHIP | 754(63.8) | 196(61.4) | 0.98(0.75-1.26) | -- | -- |
Period of diagnosis a | |||||
1995-1999 | 652(55.2) | 148(46.4) | 1.00(reference) | 246(60.6) | 1.00(reference) |
2000-2003 | 529(44.8) | 171(53.6) | 0.64 (0.39-1.05) | 160(39.4) | 0.83 (0.53-1.29) |
Treatment center region a | |||||
South Central | 530(44.8) | 150(47.0) | 1.00(reference) | 193(47.5) | 1.00 (reference) |
South Eastern | 297(25.2) | 70(21.9) | 0.79(0.58-1.09) | 95(23.4) | 0.90(0.68-1.19) |
South Western | 219(18.5) | 56(17.6) | 0.88(0.62-1.25) | 71(17.5) | 0.91(0.66-1.25) |
Northern | 135(11.4) | 43(13.5) | 1.06(0.72-1.57) | 47(11.6) | 0.99(0.68-1.44) |
Income quintiles a | |||||
1-lowest | 185(15.7) | 43(13.7) | 1.00(reference) | 94(23.6) | 1.00(reference) |
2 | 221(18.8) | 56(17.8) | 1.04(0.67-1.62) | 71(17.8) | 0.62(0.45-0.92)* |
3 | 224(19.0) | 72(22.9) | 1.34(0.87-2.05) | 64(16.0) | 0.56(0.39-0.82)* |
4 | 246(20.9) | 51(16.2) | 0.85(0.54-1.33) | 78(19.6) | 0.63(0.44-0.89)* |
5-highest | 301(25.6) | 92(29.3) | 1.31(0.87-1.97) | 92(23.1) | 0.59(0.42-0.84)* |
Missing | 4 | 5 | 7 | ||
Community size a | |||||
1 500 000+ | 358(30.3) | 109(34.2) | 1.00(reference) | 139(34.2) | 1.00(reference) |
500 000–1 499 999 | 205(17.4) | 45(14.1) | 0.68(0.46-1.00) | 54(13.3) | 0.69(0.48-0.99)* |
100 000–499 999 | 297(25.2) | 76(23.8) | 0.79(0.57-1.10) | 78(19.2) | 0.69(0.50-0.95)* |
10 000 – 99 999 | 120(10.2) | 42(13.7) | 1.15(0.76-1.73) | 61(15.0) | 1.33 (0.92-1.92) |
<10 000 | 201(17.0) | 47(14.7) | 0.73(0.46-1.07) | 74(18.2) | 0.97(0.70-1.36) |
Diagnostic biopsy b | |||||
FNA/Core | 618(52.3) | 180(56.4) | 1.00(reference) | 259(63.8) | 1.00(reference) |
Open | 563(47.8) | 139(43.5) | 0.94 (0.72-1.22) | 147(36.2) | 0.56(0.44-0.72)** |
Tumour size (cm) c | |||||
Mean size at diagnosis | 1.83 | 2.1 | 3.26 | ||
<1.0 | 384(33.2) | 84(27.5) | 1.00(reference) | 39(10.6) | 1.00(reference) |
1.0-1.5 | 268(23.2) | 61(20.0) | 1.09(0.75-1.58) | 46(12.5) | 1.63(1.03-2.57)* |
1.5-2.0 | 209(18.1) | 50(16.4) | 1.13(0.76-1.68) | 62(16.8) | 2.61(1.67-4.06)** |
>2.0 | 296(25.6) | 110(36.1) | 1.68(1.21-2.35)* | 222(60.2) | 6.92(4.74-10.10)** |
Missing | 24 | 14 | 37 | ||
Node status c | |||||
Negative | 779(70.1) | 191(66.1) | 1.00(reference) | 182(52.6) | 1.00(reference) |
Positive | 333(29.9) | 98(33.9) | 1.20(0.91-1.58) | 164(47.4) | 1.96(1.52-2.52)** |
Missing | 69 | 30 | 60 | ||
Stage at diagnosis c | |||||
I | 662(58.7) | 150(49.5) | 1.00(reference) | 92(24.2) | 1.00(reference) |
II | 332(29.4) | 90(29.7) | 1.20(0.89-1.62) | 159(41.8) | 3.19(2.37-4.27)** |
III-IV | 134(11.9) | 63(20.7) | 1.99(1.40-2.84)* | 129(33.9) | 6.82(4.89-9.50)** |
Missing | 53 | 16 | 26 |