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Table 2 Estimated prevalence rates of vitamin D deficiency or insufficiency among 2 years old children in JECS

From: 25-Hydroxyvitamin D levels among 2-year-old children: findings from the Japan environment and Children’s study (JECS)

 

ALL

Boys

Girls

25(OH)D

Population prevalence# (%) (95% CI)

Population prevalence# (%) (95% CI)

Population prevalence# (%)(95% CI)

< 20 ng/mL

25.4 (24.1–26.7)

23.5 (21.7–25.3)

27.4 (25.5–29.3)

> = 20 and < 30 ng/mL

50.9 (49.4–52.4)

50.4 (48.3–52.5)

51.4 (49.2–53.5)

> = 30 ng/mL

23.7 (22.5–25.0)

26.1(24.3–27.9)

21.3 (19.5–23.0)

  1. 25(OH) D 25-Hydroxyvitamin D;CI confidence interval; JECS Japan Environment and Children’s Study
  2. #The estimated prevalence rate was a weighted rate. The weights were the inverse of the predicted probability of participants by fitting a logistic model adjusting for maternal age, parental degrees, family income, birthweight, and child’s sex