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Changes in Calcium Intake and Association with Beverage Consumption and Demographics: Comparing Data from CSFII 1994–1996, 1998 and NHANES 1999–2002

Center for Food, Nutrition, and Agriculture Policy, University of Maryland—College Park, College Park, MD

View larger version (21K): [in a new window]   Fig. 1. Histograms and Box Plots of RCSD Consumption, Ages 12–19 y. The histograms show the consumption of RCSD for females and males 12–19 y. Female adolescents consume an average of 1.1 12-oz. servings per day and males consume an average of 1.7 12-oz. servings per day.

View larger version (31K): [in a new window]   Fig. 2. Mean Consumption of calcium, milk, and RCSD in CSFII 1994–96, 1998 and NHANES 1999–2002. The dark gray horizontal bars represent the mean of calcium consumption (mg/d) and milk and RCSD consumption (g/day) in CSFII 1994–96, 1998. The light gray horizontal bars represent the mean of calcium consumption (mg/d) and milk and RCSD consumption (g/day) in NHANES 1999–2002. The error bars represent the 95% confidence interval of each estimate.

View larger version (44K): [in a new window]   Fig. 3. 3a. Calcium Intake and RCSD Consumption, Males 12–19 y. Sunflower density plots of RCSD consumption and calcium intake among adolescent males. 3b. Calcium Intake and Milk Consumption, Males 12–19 y. Sunflower density plots of milk consumption and calcium intake among adolescent males. 3c. Calcium Intake and RCSD Consumption, Females 12–19 y. Sunflower density plots of RCSD consumption and calcium intake among adolescent females. 3d. Calcium Intake and Milk Consumption, Females 12–19 y. Sunflower density plots of milk consumption and calcium intake among adolescent females. Density-distribution sunflower plots with linear fit regression line, and 95% confidence interval of calcium intake (mg/d) predictions for RCSD and milk consumption (g/day) using the 24-hour dietary recall from NHANES 1999–2002. A single observation is represented by a single point. Multiple observations at the same point on the graph are represented as either a light or dark "flower" with "petals." Light flowers have a clear background, and dark flowers have a gray background. Dark patches with many petals indicate areas of the plot where observations are extremely prevalent or densely clustered. The long-dashed line represents the linear regression (weighted) of RCSD or milk consumption on calcium intake, and the pair of short-dashed lines above and below the regression line represents the 95% confidence interval of the calcium intake prediction.