TABLE 4.

Predicting added sugar and sugar-sweetened beverage intake in southwest Virginian adults from δ¹³C and δ¹⁵N¹

Model and predictors	β	P	95% CI	R2	P
Added sugars, g/d
Model 1a
δ13C	0.28	≤0.01	0.07, 0.31	0.09	≤0.01
Age	−0.11	0.23	−0.01, 0.01
Model 1b
δ13C	0.19	0.10	−0.20, 0.28	0.11	≤0.01
δ15N	0.15	0.18	−0.09, 0.45
Age	−0.11	0.23	−0.09, 0.45
Sugar-sweetened beverages, kcal/d
Model 2a
δ13C	0.35	≤0.001	0.40, 1.12	0.21	≤0.001
Age	−0.28	≤0.001	−0.06, −0.01
Model 2b
δ13C	0.29	≤0.01	0.19, 1.09	0.22	≤0.001
δ15N	0.10	0.90	−0.44, 1.18
Age	−0.28	≤0.01	−0.06, −0.01

¹n = 115. The dependent variables (added sugar, sugar-sweetened beverages) were log-transformed. β, standardized β-weight.