BioMed Research International / 2020 / Article / Tab 1

Research Article

Association of EPAS1 and PPARA Gene Polymorphisms with High-Altitude Headache in Chinese Han Population

Table 1

Basic characteristics of subjects.

VariablesBaseline measurementsMeasurements at 3700 m
Total (580)HAH+ (421)HAH− (159) valueaTotal (580)HAH+ (421)HAH− (159) valuea value#

Basic demographic data
Age (year)23.04 ± 3.7123.22 ± 3.8922.58 ± 3.120.06723.04 ± 3.7123.22 ± 3.8922.58 ± 3.120.067
Height (cm)171.49 ± 4.64171.42 ± 4.64171.67 ± 4.640.571171.49 ± 4.64171.42 ± 4.64171.67 ± 4.640.571
Weight (kg)64.09 ± 7.4264.19 ± 7.7463.84 ± 6.500.61564.09 ± 7.4264.19 ± 7.7463.84 ± 6.500.615
BMI (kg/m2)21.78 ± 2.2021.82 ± 2.2921.65 ± 1.940.41021.78 ± 2.2021.82 ± 2.2921.65 ± 1.940.410
Current smokers311 (53.62)215 (51.07)96 (60.38)0.045b311 (53.62)215 (51.07)96 (60.38)0.045b
Current drinkers25 (4.31)15 (3.56)10 (6.29)0.149b25 (4.31)15 (3.56)10 (6.29)0.149b

Physiological parameters
HR (bpm)65.17 ± 10.3965.17 ± 10.6365.17 ± 9.780.99785.53 ± 12.9786.33 ± 13.4483.43 ± 11.420.016<0.001
SpO2 (%)98.14 ± 1.0098.13 ± 1.0298.19 ± 0.950.56288.47 ± 3.1488.25 ± 3.2089.04 ± 2.910.007<0.001
SBP (mmHg)115.89 ± 10.83115.91 ± 10.85115.83 ± 10.820.945118.39 ± 11.41118.74 ± 11.85117.45 ± 10.130.225<0.001
DBP (mmHg)73.81 ± 9.4874.25 ± 9.7672.64 ± 8.600.11778.78 ± 9.8379.23 ± 10.0177.61 ± 9.260.077<0.001

aIndependent samples t-test. bChi-squared test (2 2 contingency table, df = 1). indicated statistical significance. #Comparison of physiological parameters between baseline and measurements at 3700 m in all subjects. HAH+, subjects with HAH; HAH−, subjects without HAH. HAH, high-altitude headache; BMI, body mass index; HR, heart rate; SpO2, pulse oxygen saturation; SBP, systolic blood pressure; DBP, diastolic blood pressure.