Patient and tumour characteristics | 1975–1979 1985–1989 N = 218 (%) | 1997–2000 2001–2003 N = 389 (%) | P value for X2 of heterogeneity |
---|---|---|---|
Social class2 | |||
High | 8 (6%) | 72 (19%) | P < 0.0000 |
Medium | 57 (44%) | 203 (52%) | |
Low | 26 (20%) | 53 (14%) | |
Unknown | 39 (30%) | 61 (16%) | |
Method of detection | |||
Screening | 31 (14%) | 199 (51%) | P < 0.0000 |
Other | 187 (86%) | 190 (49%) | |
Stage at diagnosis | |||
I | 69 (32%) | 186 (48%) | P < 0.0000 |
II | 95 (44%) | 149 (38%) | |
III and more | 34 (16%) | 42 (11%) | |
Unknown | 20 (09%) | 12 (3%) | |
Oestrogen 3 receptors | |||
Positive | 43 (61%) | 311 (80%) | P = 0.002 |
Negative | 18 (25%) | 53 (14%) | |
Unknown | 10 (14%) | 25 (6%) | |
Histological type | |||
Ductal | 173 (79%) | 311 (80%) | P < 0.0000 |
Lobular | 4 (2%) | 53 (14%) | |
Other | 41 (19%) | 25 (6%) |