Table 4.

Associations of NNS^* (quartiles of intake averaged across first and second trimesters) quartiles with BMI trajectory from birth to 18 years^#

		NNS intake
		Q1	Q2	Q3	Q4
			β (95% CI)
Model 1	Main effect	Ref	−0.24 (−1.83, 1.35)	0.23 (−1.12, 1.59)	1.00 (−0.34, 2.34)
	Interaction		0.01 (−0.004, 0.03)	0.01 (−0.003, 0.03)	0.03 (0.01, 0.04)
Model 2	Main effect	Ref	0.03 (−1.60, 1.67)	0.13 (−1.28, 1.54)	1.22 (−0.19, 2.63)
	Interaction		0.01 (−0.007, 0.03)	0.02 (−0.001, 0.03)	0.03 (0.01, 0.04)
Model 3	Main effect	Ref	−0.35 (−1.99, 1.30)	−0.33 (−1.75, 1.09)	0.56 (−0.86, 1.99)
	Interaction		0.01 (−0.006, 0.03)	0.02 (−0.001, 0.03)	0.03 (0.01, 0.05)
Model 4	Main effect	Ref	−0.29 (−2.00, 1.42)	−0.11 (−1.57, 1.35)	0.10 (−1.37, 1.57)
	Interaction		0.01 (−0.01, 0.03)	0.02 (−0.002, 0.03)	0.03 (0.01, 0.05)

^*NNS: Diet soda + NutraSweet/Equal packets

^#Expressed as BMI z-score SD units/year of age

Model 1. Unadjusted

Model 2. Adjusted for maternal age, race/ethnicity, education, parity, pre-pregnancy physical activity, and pregnancy smoking status

Model 3. Model 2 + pre-pregnancy BMI

Model 4. Model 3 + father’s BMI and education