Table 1.

Baseline demographics of the adult and adolescent groups.

	Adults (n = 74)	Adolescents (n = 76)	P
Age	46.5 (38.0–59.3)	18.0 (17.3–19.8)	<0.010*
Sex (male/female)	31/43	13/63	<0.010
Height (in)	66.9 ± 4.2	65.9 ± 3.1	0.080
Weight (Kg)	127.3 (112.6–151.4)	140.9 (123.5–158.8)	<0.010*
BMI (Kg/m2)	43.6 (40.0–51.3)	50.5 (45.3–56.7)	<0.010*
RYGB (%)	59.5	77.6	0.010
SG (%)	40.5	22.4
Race/Ethnicity (%)
White	79.7	59.2	0.080
Hispanic	12.2	22.4
African-American	2.7	7.9
Asian	0	3.4
>1 race	2.7	5.3
Unknown	2.7	1.3
Systolic BP (mm Hg)	129 (118–142)	126 (117–134)	0.220*
Diastolic BP (mm Hg)	77 (70.75–82)	75 (66–83.5)	0.560*
HDL (mg/dL)	41.5 (36.8–53.0)	39 (33.5–45.5)	0.100*
LDL (mg/dL)	108.6 ± 36.5	95.9 ± 4.0	0.030
Triglycerides (mg/dL)	146.5 (99.3–207.8)	102 (74.5–141.0)	<0.001*
Cholesterol (mg/dL)	184.5 (159.3–205.5)	156.0 (140.0–179.0)	<0.0001*
Hgb A1c (%)	6.2 (5.63–7.15)	5.6 (5.2–5.9)	<0.0001*
ALT (IU/L)	26.0 (16.3–36.0)	23.0 (17.0–36.0)	0.760*
AST (IU/L)	23.0 (17.3–29.5)	22.0 (18.0–27.0)	0.640*
Alkaline phosphatase (IU/L)	74.0 (59.8–87.5)	82.5 (66.0–102.0)	0.010*
TIBC (μg/dL)	321.6 ± 53.3	353.8 ± 61.9	<0.010
Iron (μg/dL)	67.0 (54.3–86.5)	54.5 (36.3–85.5)	0.020*
Ferritin (ng/mL)	85.0 (39.0–168.8)	56.0 (34.5–81.0)	0.020*
Vitamin B12 (pg/mL)	476.5 (349.3–673.5)	508.0 (396.0–620.0)	1.000*
Vitamin D (ng/ml)	25.5 (19.0–31.0)	23.0 (18.0–28.0)	0.210*

^*Wilcoxon Test was used for non-normally distributed data.

TIBC, Total iron binding capacity.

Bold value means statistically significant.