Figure 2.

Adjusted percent change (95% confidence interval) in plasma fluoride per number of 8 oz. cups of fluoridated tap water (0 servings/day, n = 3368; >0–1 servings/day, n = 100; >1–2 servings/day, n = 152; >2–3 servings/day, n = 94; >3 servings/day, n = 214) and green/black tea (0 servings/day, n = 3425; >0–1 servings/day, n = 135; >1–2 servings/day, n = 194; >2–3 or more servings/day, n = 78; ≥3 servings/day, n = 96) in 3928 6–19 year old National Health and Nutrition Examination Survey participants from 2013–2016. Adjusted for age, sex, race/ethnicity, fluoridated tap water consumption, and recent green/black tea consumption.