Vitamin D Deficiency Is Prevalent in Morbidly Obese Adolescents Prior to Bariatric Surgery

Table 1

Association of patient characteristics (𝑛=219) with 25-hydroxyvitamin D (25OHD) levels.

Variable	Mean ± SD; (range)	Correlation with 25 OHD^†
		𝑟	𝑃
Age (years)	15.9 ± 1.2 (12.9–18.5)	−0.04	0.59
Sex (female : male)	143 : 76	0.12	0.07
Race (% African American)	15%	−0.28	<0.0001
BMI (kg/m ^2)	47.5 ± 8.1 (35.3–86.2)	−0.28	<0.0001
Serum calcium^‡ (8.7–10.2 mg/dL)	9.3 ± 0.6	0.04	0.53
iPTH (10–55 pg/mL)	28.0 ± 13.9	−0.24	0.0003
1,25(OH)2D (15.0–90.0 pg/mL)	46.13 ± 15.2	0.07	0.34

Normal ranges presented in parentheses for serum measurements.
†r (Spearman correlation coefficient) and 𝑃 values presented for the association between each variable and total 25OHD concentration in the univariate analysis. Variables with significant correlations are in boldface.
^‡Calcium values are corrected for serum albumin.