Fig. 3From: Body mass index increases the lymph node metastasis risk of breast cancer: a dose-response meta-analysis with 52904 subjects from 20 cohort studiesThe linear association between body mass index (BMI) and lymph node metastasis for breast cancer (The solid line and the dash line represent the estimated relative risk (RR) and its 95% confidence interval (CI) for the fitted linear trend. Lines with short dashes represent the non-linear trend analysis result)Back to article page