Vitamin D Deficiency Is Prevalent in Morbidly Obese Adolescents Prior to Bariatric Surgery
Table 2
Serum 25-hydroxyvitamin D levels (ng/mL): distribution by season and race.
Season†
All subjects ()*
African American ()
Non-African American ()**
Avg ± SD
% <20
Avg ± SD
% <20
Avg ± SD
% <20
Winter
42
16.9 ± 7.4
74
9
13.7 ± 3.8
89
33
17.8 ± 7.9
70
Spring
70
20.7 ± 9.7
54
9
13.6 ± 5.1
89
61
21.7 ± 9.8
49
Summer
56
22.9 ± 11.4
38
7
17.0 ± 5.0
71
49
23.7 ± 11.8
33
Autumn
51
21.3 ± 9.1
49
8
16.5 ± 6.3
75
43
22.2 ± 9.4
44
ANOVA P value < 0.01; P value < 0.02. †Winter (December through February), spring (March through May), summer (June through August), and autumn (September through November).
