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
Subgroup | Subjects number | AMS [n(%)] | RR (95%CI) | P | ||
|---|---|---|---|---|---|---|
Women | Men | Women | Men | |||
All participants | 2639 | 5030 | 1006(38.1) | 1722(34.2) | 1.24(1.09–1.41) | 0.000 |
Race | ||||||
 Aisan | 2126 | 3718 | 836(39.3) | 1285(34.6) | 1.27(1.10–1.48) | 0.000 |
 No-Aisan | 513 | 1312 | 170(33.1) | 437(33.3) | 1.16(1.09–1.41) | 0.005 |
Number of subjects | ||||||
 <300 | 344 | 635 | 182(52.9) | 222(35.0) | 1.60(1.27–2.00) | 0.225 |
  ≥ 300 | 2295 | 4385 | 824(35.9) | 1500(34.2) | 1.12(0.98–1.28) | 0.001 |
LLSS cut-off value | ||||||
  ≥ 3 | 2176 | 4002 | 848(39.0) | 1443(36.1) | 1.25(1.08–1.45) | 0.000 |
  ≥ 4 | 463 | 1028 | 158(34.1) | 279(27.1) | 1.27(1.01–1.60) | 0.168 |
Average age | ||||||
 <40 years | 1849 | 3544 | 685(37.0) | 1205(34.0) | 1.32(1.02–1.71) | 0.000 |
  ≥ 40 years | 790 | 1486 | 321(40.6) | 517(34.8) | 1.22(1.04–1.44) | 0.013 |