Table 5.
Associations between healthy behavior index and breast cancer-specific and all-cause mortality, stratified by stage at diagnosis
| Healthy behavior index | Localized
|
Regional/distant
|
||||
|---|---|---|---|---|---|---|
| Deaths/No | Crude HR (95% CI) | Adjusted HRa (95% CI) | Deaths/No | Crude HR (95% CI) | Adjusted HRa (95% CI) | |
| Breast cancer-specific mortality | ||||||
| Q1 (0–3) | 10/140 | 1.00 | 1.00 | 13/67 | 1.00 | 1.00 |
| Q2 (4–5) | 11/196 | 0.79 (0.34–1.86) | 0.72 (0.30–1.70) | 20/87 | 1.21 (0.60–2.43) | 1.18 (0.57–2.39) |
| Q3 (6–7) | 11/159 | 0.98 (0.42–2.31) | 0.83 (0.35–2.00) | 20/83 | 1.33 (0.66–2.67) | 1.21 (0.59–2.48) |
| Q4 (8–12) | 3/65 | 0.68 (0.19–2.47) | 0.56 (0.15–2.05) | 10/37 | 1.66 (0.73–3.79) | 1.59 (0.70–3.65) |
| p-trend | 0.7349 | 0.48 | 0.2252 | 0.32 | ||
| p-interactionb | 0.65 | |||||
| All-cause mortality | ||||||
| Q1 (0–3) | 22/140 | 1.00 | 1.00 | 14/67 | 1.00 | 1.00 |
| Q2 (4–5) | 37/196 | 1.21 (0.72–2.06) | 1.09 (0.64–1.87) | 26/87 | 1.43 (0.75–2.75) | 1.38 (0.72–2.66) |
| Q3 (6–7) | 26/159 | 1.10 (0.62–1.94) | 0.97 (0.54–1.72) | 25/83 | 1.53 (0.79–2.94) | 1.36 (0.70–2.67) |
| Q4 (8–12) | 22/65 | 2.29 (1.27–4.14) | 1.94 (1.06–3.57) | 17/37 | 2.62 (1.29–5.31) | 2.49 (1.22–5.08) |
| p-trend | 0.0287 | 0.099 | 0.0130 | 0.03 | ||
| p-interactionb | 0.92 | |||||
Q quartile, HR hazard ratio, CI confidence interval
a
Adjusted for education
b
Interaction reported for HBI quartile and stage at diagnosis