Table 2.
Associations between EL and breast cancer risk
| EL | Total cases | Person years | Incident cases | HR(95%CI) | |
|---|---|---|---|---|---|
| Model1 | Model 2 | ||||
| Low | 1078 | 13,467.46 | 8 | Ref | Ref |
| Medium | 16,833 | 213,025.99 | 244 | 2.37(1.17–4.81) | 2.23(1.12–4.64) |
| High | 2218 | 27,893.27 | 27 | 2.51(1.12–5.64) | 2.52(1.12–5.70) |
| Excluding participants who developed breast cancer within the first 2 years of follow-up | |||||
| Low | 1075 | 13,466.04 | 5 | Ref | Ref |
| Medium | 16,805 | 213,001.34 | 216 | 3.23(1.33–7.87) | 3.13(1.28–7.67) |
| High | 2214 | 27,889.00 | 23 | 3.19(1.19–8.54) | 3.21(1.19–8.67) |
EL Education level
Compared with the low El group respectively
Model1 was adjusted for age; model2 was further adjusted for smoking status, alcohol consumption, BMI, physical activity, salt intake, hypertension, and diabetes mellitus