Table 2. Age adjusted odds ratios (OR) with 95% confidence intervals (95% CI) for tumour biological characteristics by socio-economic deprivation category (NZDep 2006).
| Deprivation quintile | Stage a n = 2733 | Grade b n = 2537 | ER/PR c n = 2673 | HER-2 d n = 2012 | TNBC e n = 1930 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| OR (95% CI) | p | OR (95% CI) | p | OR (95% CI) | p | OR (95% CI) | p | OR (95% CI) | p | |
| Dep 1–2 | Ref | 0.006 | Ref | 0.095 | Ref | 0.011 | Ref | 0.939 | Ref | 0.270 |
| Dep 3–4 | 0.85 (0.55–1.30) | 0.75 (0.51–1.11) | 0.98 (0.59–1.64) | 0.97 (0.58–1.63) | 0.67 (0.30–1.52) | |||||
| Dep 5–6 | 0.88 (0.65–1.27) | 1.05 (0.74–1.47) | 1.31 (0.86–2.00) | 1.05 (0.69–1.60) | 0.90 (0.49–1.68) | |||||
| Dep 7–8 | 1.27 (0.90–1.78) | 0.98 (0.71–1.36) | 1.41 (0.94–2.13) | 0.98 (0.65–1.47) | 1.15 (0.64–2.08) | |||||
| Dep 9–10 | 1.33 (0.94–1.87) | 1.18 (0.84–1.67) | 1.77 (1.18–2.67) | 1.11 (0.73–1.67) | 1.31 (0.73–2.38) | |||||
a—Stage III & IV compared with stage I & II,
b—Grade II & III compared with grade I,
c—ER and PR negative compared with ER and/or PR positive,
d—HER-2 positive compared with HER-2 equivocal and negative,
e—Triple negative breast cancer (TNBC) compared with non-TNBC.