Table 2. Breast cancer. Independent associations of age and deprivation with advanced stage at diagnosis (i.e., stage III/IV vs stage I/II)a (n=16 460).
| Odds ratio | Lower 95% confidence interval | Higher 95% confidence interval | P | |
|---|---|---|---|---|
| 15–39 | 1.15 | 0.89 | 1.48 | |
| 40–44 | 1.02 | 0.81 | 1.28 | |
| 45–49 | 0.91 | 0.74 | 1.14 | |
| 50–54 | 0.92 | 0.74 | 1.14 | |
| 55–59 | 0.90 | 0.72 | 1.12 | |
| 60–64 | 0.91 | 0.74 | 1.12 | |
| 65–69 | Reference | <0.001b (<0.001)c | ||
| 70–74 | 1.21 | 0.98 | 1.49 | |
| 75–79 | 1.46 | 1.20 | 1.78 | |
| 80–84 | 1.68 | 1.37 | 2.07 | |
| ⩾85 | 1.78 | 1.45 | 2.18 | |
| Most affluent | Reference | 0.010b (0.002)d | ||
| 2 | 1.16 | 1.02 | 1.32 | |
| 3 | 1.12 | 0.98 | 1.28 | |
| 4 | 1.29 | 1.12 | 1.49 | |
| Deprived | 1.23 | 1.00 | 1.52 |
a
From logistic regression models, with stage III/IV vs stage I/II diagnosis as the binary outcome variable. Models were adjusted for age, deprivation, tumour type and diagnosis through screening or symptomatically, and included a random effect for Primary Care Trust.
b
From joint log likelihood test for effect of age or deprivation as applicable.
c
From joint log likelihood ratio tests for significance of difference between patients aged ⩾70 years and patients in all other age groups.
d
From models with deprivation quintile group entered as a continuous variable.