Association between HF and the risk of incident CKD in various subgroups. Adjusted for baseline age, gender, race/ethnicity, marital status, income level, service connection and non-compliance, diabetes mellitus, hypertension, cardiovascular disease, peripheral arterial disease, lung disease and malignancy, body mass index, systolic blood pressure and diastolic blood pressure and eGFR. The light and dark markers denote the hazard ratio and 95% confidence intervals of two categories of the same variable.