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Table 1 Characteristics of the participants

From: Plasma metabolomic profile in orthostatic intolerance children with high levels of plasma homocysteine

Characteristics

OI group

Control group

χ2/t/Z

P value

Cases, n

34

10

-

-

Males/females, n

19/15

5/5

0.728

0.473a

Age, years

12.91 ± 1.83

12.00 ± 2.54

1.264

0.213b

BMI, kg/m2

20.18 ± 4.30

23.33 ± 5.77

−1.880

0.067b

sHR, bpm

74.73 ± 12.67

80.00 ± 10.10

−1.030

0.310b

sSBP, mmHg

109.29 ± 10.14

108.78 ± 13.59

0.126

0.900b

sDBP, mmHg

67.79 ± 7.85

67.22 ± 7.35

0.197

0.845b

Plasma Hcy, µmol/L

11.33 (10.00, 13.64)

8.12 (7.62, 9.02)

−4.593

0.000c, *

  1. Values represent n, mean SD, or median (interquartile range). BMI, body mass index; sHR, mean supine heart rate; sSBP, mean supine systolic blood pressure; sDBP, mean supine diastolic blood pressure; Hcy, homocysteine; OI, orthostatic intolerance; a, chi-square test; b, independent-samples Student’s t test; c, Mann–Whitney U test; *P < 0.05 vs. the control group