. 2015 Nov 13;124(6):769–775. doi: 10.1289/ehp.1510082

Table 6.

Adjusted prevalence ratio (PR) and 95% CI for the association between infant soy formula feeding and categories of the largest fibroid diameter (< 2, ≥ 2 cm), among women with ultrasound-detected distinct fibroids at enrollment (n = 340), Study of Environment, Lifestyle & Fibroids (SELF), 2010–2012.

Exposure	Diameter of the largest fibroid		Age-adjusted PR (95% CI)	Multivariable-adjusted^a PR (95% CI)
Exposure	≥ 2 cm, n (%)	< 2 cm, n (%)	Age-adjusted PR (95% CI)	Multivariable-adjusted^a PR (95% CI)
Soy formula
Never fed	108 (83)	194 (92)	1.0 (reference)	1.0 (reference)
Ever fed	22 (17)	16 (8)	1.7 (1.3–2.3)	1.6 (1.1–2.2)
^aAdjusted for participant age and birth weight and maternal smoking, education, and any pregnancy complication of pre-existing diabetes, gestational diabetes, pregnancy-related hypertension or pre-eclampsia.