Skip to main content

Table 3 Subgroup analysis results of 17 studies

From: Association between acute mountain sickness (AMS) and age: a meta-analysis

Subgroup Grouping criteria No. of Studies AMS/Non-AMS (n) I2 (%) IV (95%CI) P value
Race Non- sian 7 448/901 77 −1.65(−4.51,1.21) 0.26
Asian 10 1362/2113 57 0.27(− 0.07,0.84) 0.12
Age (year) < 18 1 80/99 0.00(−0.13,0.13) 1.00
18–30 6 900/832 48 0.31(−0.08,0.70) 0.12
≥30 10 830/2083 79 −0.64(−3.08,1.78) 0.60
Ascent mode Trek 6 418/841 81 −1.51(−4.83,1.82) 0.37
Car or Bus 6 716/575 61 0.14(−0.26,0.54) 0.50
Plane 5 676/1598 35 0.49(−0.20,1.18) 0.16
Overall   17 1810/3014 72 0.10(−0.38,0.58) 0.69
  1. AMS Acute mountain sickness; Age group criteria: Average age (mean). IV Inverse variance, CI Confidence intervals
  2. -: No data