Longitudinal observation of intraocular pressure variations with acute altitude changes

Table 1 Demographics of three groups (mean ± SD)

	LA group	HA group	VHA group	P value
n	17	22	19
Gender (male/ female)1	6/11	11/11	10/9	0.548
Age (yr)(range)2	28.1 ± 8.1(22-56)	29.6 ± 4.3 (20-37)	28.6 ± 6.0 (22-42)	0.716
Height (m)2	1.7 ± 5.7	1.7 ± 8.8	1.7 ± 6.3	0.19
Weight (kg)2	62.2 ± 8.7	64.9 ± 16.0	64.0 ± 10.6	0.898
BMI (kg/m2)2	21.8 ± 2.1	22.5 ± 3.9	23.6 ± 3.1	0.253
Waistline (cm)2	77.0 ± 8.4	80.7 ± 13.1	80.7 ± 9.7	0.492
Hipline (cm)2	93. 7± 5.3	90.3 ± 7.9	90.6 ± 7.1	0.279

¹Kruskal–Wallis test with post hoc Dunn multiple comparisons;

²One-way ANOVA with post hoc least significant difference analysis. BMI: Body mass index; LA: Low-altitude; HA: High altitude; VHA: Very high altitude.