For example, one study done at the
Schools of Public Health and Medicine at the University of North Carolina concluded based on their study results that a soy isoflavone - rich supplement appears to have little or no effect on bone in young adult women with
normal ovarian function
during the course of their one
year study.
A covariate was included in the multivariate analyses if theoretical or empirical evidence supported its role as a risk factor for obesity, if it was a significant predictor of obesity in univariate regression models, or if including it in the full multivariate model led to a 5 % or greater change in the OR.48 Model 1 includes maternal IPV exposure, race / ethnicity (black, white, Hispanic, other / unknown), child sex (male, female), maternal age (20 - 25, 26 - 28, 29 - 33, 34 - 50
years), maternal education (less than high
school, high
school graduation, beyond high
school), maternal nativity (US born, yes or no), child age in months, relationship with father (yes or no), maternal smoking
during pregnancy (yes or no), maternal depression (as measured by a CIDI - SF cutoff score ≥ 0.5), maternal BMI (
normal / underweight, overweight, obese), low birth weight (< 2500 g, ≥ 2500 g), whether the child takes a bottle to bed at age 3
years (yes or no), and average hours of child television viewing per day at age 3
years (< 2 h / d, ≥ 2 h / d).