Table 4.
Conditional logistic regression analyses of percentage of heart volume receiving >5 Gy and cardiac morbidity and cardiac mortality of 494 cases and 988 matched controls after breast cancer therapy in 1998–2008.
| Variables | Crude | 
Adjustedb | 
||||
|---|---|---|---|---|---|---|
| Odds Ratio | 95% CI | P | Odds Ratio | 95% CI | P | |
| Groups of percentage of the complete heart receiving >5 Gy [V5Gy] | ||||||
| <10% | 1.00a | 1.00a | ||||
| 10%–29% | 1.01 | 0.76–1.35 | .95 | 1.00 | 0.75–1.34 | .99 | 
| ≥30% | 0.94 | 0.60–1.46 | .78 | 0.94 | 0.60–1.47 | .78 | 
| Percentage of the complete heart receiving >5 Gy [V5Gy], continuous per 1% | 1.00 | 0.99–1.01 | .96 | 1.00 | 0.99–1.01 | .98 | 
| Groups of percentage of the left anterior heart wall receiving >5 Gy [V5Gy] | ||||||
| <10% | 1.00a | 1.00a | ||||
| 10%–29% | 1.06 | 0.67–1.67 | .80 | 1.06 | 0.67–1.67 | .82 | 
| ≥30% | 1.02 | 0.79–1.31 | .90 | 1.02 | 0.79–1.32 | .88 | 
| Percentage of the left anterior heart wall receiving >5 Gy [V5Gy], continuous per 1% | 1.00 | 0.996–1.004 | .99 | 1.00 | 0.996–1.004 | .99 | 
Reference category.
Adjusted for chemotherapy, endocrine therapy and BMI.