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Table 2 Impact of demographic and clinical characteristics on vitamin D status in individuals with Down syndrome

From: Hypovitaminosis D in persons with Down syndrome and autism spectrum disorder

 

Adjusted mean difference (ng/mL)

95% CI

Age (years)

0.18

0.04–0.31*

Sex

−0.04

−1.23–1.14

BMI (kg/m2)

−0.27

−0.38 to −0.15***

Race

 Caucasian (RC)

--

--

 Asian

−0.17

−2.17–1.83

 Black

−1.63

−4.33–1.06

 Native American

2.81

−4.92–10.55

 Other

−1.85

−8.23–4.53

 Unknown

22.42

8.74–36.11**

Ethnicity

 Hispanic (RC)

--

--

 Not Hispanic

0.32

−0.91–1.54

Autism spectrum disorder

 Present (RC)

--

--

 Not present

−0.09

−1.79–1.61

 Unknown

2.44

−2.31–7.19

Personal autoimmune disease

−3.11

−6.22 to −1.55***

1st-degree family with autoimmune disease

−1.83

−2.45 to −0.63**

Hypothyroidism

 Present (RC)

--

--

 Not present

0.89

−0.96–2.74

 Unknown

1.04

−0.94–3.02

Obstructive sleep apnea

 Present (RC)

--

--

 Not present

0.79

−0.96–2.74

 Unknown

0.73

−0.94–3.02

Congenital heart disease

 Present (RC)

--

--

 Not present

−0.18

−1.88–1.52

 Unknown

3.59

−20.23–27.42

Neurologic disease

−3.15

−5.02 to −1.28***

Restricted dietary intake or failure to thrive

 Present (RC)

--

--

 Not present

−1.15

−3.11–0.80

 Unknown

−1.16

−3.47–1.14

  1. RC Reference category, CI Confidence interval
  2. ***p < 0.001, **p < 0.01, *p < 0.05