Associations of Serum Nitric Oxide with Vitamin D and Other Metabolic Factors in Apparently Healthy Adolescents
Table 1
Clinical characteristics of the subjects.
Parameter
All
Boys
Girls
P-Value
N
740
245 (33.1)
495 (66.9)
Age (years)
14.2 ± 1.6
14.1 ± 1.2
14.3 ± 1.8
0.18
Body Mass Index (kg/m2)
21.9 ± 4.8
22.7 ± 4.4
21.5 ± 4.9
0.003
Waist circumference (cm)
73.6 ± 11.7
72.2 ± 10.0
74.7 ± 12.8
0.011
Hip circumference (cm)
88.0 ± 11.2
92.8 ± 10.1
84.3 ± 10.6
<0.001
WHR
0.8 ± 0.09
0.8 ± 0.1
0.9 ± 0.1
<0.001
Systolic BP (mmHg)
119.4 ± 14.0
116.0 ± 13.0
121.0 ± 14.2
<0.001
Diastolic BP (mmHg)
70.1 ± 9.8
72.6 ± 10.2
68.9 ± 9.3
<0.001
Glucose (mmol/l)
5.1 ± 0.7
4.9 ± 0.8
5.2 ± 0.7
<0.001
Triglycerides (mmol/l)#
1.0 (0.8-1.4)
1.0 (0.8-1.4)
1.0 (0.8-1.4)
0.62
Total Cholesterol (mmol/l)
4.3 ± 1.0
4.0 ± 1.1
4.4 ± 0.9
<0.001
HDL-Cholesterol (mmol/l)
1.2 ± 0.4
1.0 ± 0.2
1.3 ± 0.4
<0.001
LDL-Cholesterol (mmol/l)
2.6 ± 0.8
2.6 ± 0.8
2.6 ± 0.8
0.310
LDL/HDL ratio
2.5 ± 1.2
2.7 ± 0.9
2.4 ± 1.3
0.004
25(OH)D (nmol/l)#
33.6 (24.9-46.6)
25.6 (20.2-32.2)
38.6 (29.7-50.2)
<0.001
Nitric Oxide (µmol/l)#
12.8 (5.7-26.4)
21.9 (12.8-37.5)
9.3 (5.0-20.0)
<0.001
Note: data is presented as N (%) for frequencies and mean ± standard deviation for normal continuous variables; # denotes non-Gaussian variables presented as median (-) percentiles; P-value is significant at 0.05.
