Table 1.
Selected characteristics of women diagnosed with a first primary breast cancer in 1996–1997, Long Island Breast Cancer Study Project, by diabetes status prior to diagnosis
| Characteristics | Diabetes | No diabetes | p Value |
|---|---|---|---|
| Mean age (years) | 63.6 | 57.4 | <0.0001 |
| Breast cancer diagnosis (%) | 55.7 | 48.7 | 0.046 |
| 5-year death due to breast cancer (%among cases) | 11.5 | 6.7 | 0.049 |
| Menopausal status (%postmenopausal) | 86.2 | 65.6 | <0.0001 |
| Race (% Caucasian) | 84.9 | 93.4 | <0.0001 |
| BMI, mean | 30.9 | 26.1 | <0.0001 |
| Energy intake (Kcal/day), mean | 1,316 | 1,343 | 0.594 |
| Regular physical activity (≥3 h/week) (%) | 61.9 | 71.8 | 0.002 |
| Ever regular alcohol drinker (%) | 42.9 | 64.0 | <0.0001 |
| Ever take hormone replacement (%) | 20.4 | 33.5 | 0.0003 |
| Breast cancer stage (% invasive among cases) | 87.7 | 84.1 | 0.287 |
| ER + tumor (% among cases) | 73.6 | 73.6 | 0.997 |
| PR + tumor (% among cases) | 66.7 | 64.0 | 0.619 |
| Chemotherapy (% among cases) | 33.9 | 41.9 | 0.239 |
| Hormone therapy (% among cases) | 72.2 | 60.6 | 0.089 |
| Radiation therapy (% among cases) | 50.0 | 61.7 | 0.081 |