Fig. 2From: Association of low-level lead exposure with all-cause and cardiovascular disease mortality in US adults with hypertension: evidence from the National Health and Nutrition Examination Survey 2003–2010Kaplan–Meier survival curves for all-cause (A) and cardiovascular disease mortality (B) according to blood lead categories among patients with hypertension (≥ 20 years old) in NHANES 2003—2010Back to article page