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Table 3 The heterogeneity of the subgroup analysis of the included AMS studies

From: Sex-based differences in the prevalence of acute mountain sickness: a meta-analysis

SubgroupSubjects numberAMS [n(%)]RR (95%CI)P
WomenMenWomenMen
All participants263950301006(38.1)1722(34.2)1.24(1.09–1.41)0.000
Race
 Aisan21263718836(39.3)1285(34.6)1.27(1.10–1.48)0.000
 No-Aisan5131312170(33.1)437(33.3)1.16(1.09–1.41)0.005
Number of subjects
 <300344635182(52.9)222(35.0)1.60(1.27–2.00)0.225
  ≥ 30022954385824(35.9)1500(34.2)1.12(0.98–1.28)0.001
LLSS cut-off value
  ≥ 321764002848(39.0)1443(36.1)1.25(1.08–1.45)0.000
  ≥ 44631028158(34.1)279(27.1)1.27(1.01–1.60)0.168
Average age
 <40 years18493544685(37.0)1205(34.0)1.32(1.02–1.71)0.000
  ≥ 40 years7901486321(40.6)517(34.8)1.22(1.04–1.44)0.013
  1. LLSS Lake Louise Scoring System, AMS acute mountain sickness; RR relative risk, 95% CI 95% confidence interval