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Table 1 Details of eligible AMS-related studies that were included in the meta-analysis

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

References

Location

Race of subjects

Subjects

Diagnostic criteria

Average age (years)

Altitude (m)

Total subjects (n)

Prevalence (%)

Total

Women

Men

Murdoch et al. (1995) [4]

Shyangboche, Asia

Asian

Guests

LLSS ≥3

45.3

3740

154

77.9 (120/154)

88.6 (62/70)

69.0 (58/84)

Ziaee et al. (2003) [9]

Mount Damavand, Asia

Asian

Hikers

LLSS ≥3

31.9

4200

459

60.8 (279/459)

58.1 (86/148)

63.1 (196/311)

Wagner et al. (2008) [10]

Mt. Whitney, North America

American

Hikers

LLSS ≥3

37.6

4419

886

42.6 (337/886)

37.7 (80/212)

44.1 (297/674)

Jafarian et al. (2008) [27]

Tehran, Asia

Asian

Volunteers

LLSS ≥3

28.8

3450

90

37.8 (34/90)

53.3 (16/30)

30.0 (18/60)

Mairer et al. (2009) [22]

Austrian Alps, Europe

European

Hikers

LLSS ≥4

37.4

2200–3500

422

16.6 (70/422)

18.9 (20/106)

15.8 (50/316)

Wu et al. (2010) [28]

Lhasa, Asia

Asian

Passengers

LLSS ≥3

40.4

2600–5072

222

27.0 (60/222)

34.5 (30/87)

22.2 (30/135)

Wang et al. (2010) [11]

Jade Mountain, Asia

Asian

Hikers

LLSS ≥3

40.2

3925

1066

36.0 (384/1066)

36.3 (128/353)

35.9 (256/713)

Mairer et al. (2010) [29]

Alps, Europe

European

Mountaineers

LLSS ≥4

34.7(group 1)

36.8(group 2)

3454 and 3817

155

37.4 (58/155)

39.3 (11/28)

37.0 (47/127)

Modesti et al. (2011) [8]

Mount Everest

Base Camp, Asia

Asian

Volunteers

LLSS ≥4

40

5400

47

34.0 (16/47)

60.0 (9/15)

21.9 (7/32)

Chen et al. (2012) [23]

Jade Mountain, Asia

Asian

Hikers

LLSS ≥4

42

3402–3952

787

32.8 (258/787)

34.7 (92/265)

31.8 (166/522)

Maclnnis et al. (2013) [30]

Gosainkunda,Asia

Asian

Pilgrims

LLSS ≥3

36.7

4380

491

34.0 (167/491)

45.5 (67/147)

29.1 (100/344)

Mandolesi et al. (2014) [31]

Mount Rosa, Europe

European

Mountaineers

LLSS ≥3

36.4

3647–4559

60

40.0 (24/60)

54.5 (6/11)

36.7 (18/49)

Hsu et al. (2015) [32]

Jiaming Lake,Asia

Asian

Mountaineers

LLSS ≥3

19.8

3550

91

20.9 (19/91)

14.3 (4/28)

23.8 (15/63)

Ren et al.(2015) [33]

Lhasa, Asia

Asian

Volunteers

LLSS ≥4

38.4

3100–4300

80

43.8 (35/80)

53.1 (26/49)

29.0 (9/31)

Horiuchi et al. (2016) [34]

Mount Fuji,Asia

Asian

Climbers

LLSS ≥3

36.1

3776

345

29.5 (98/345)

32.6 (46/141)

25.5 (52/204)

Sánchez-Mascuñano et al. (2017) [35]

Spain, Europe

European

Travellers

LLSS ≥3

37.7

> 3400

302

25.8 (78/302)

39.0 (53/156)

17.1 (25/146)

Horiuchi et al. (2018) [12]

Mount Fuji,Asia

Asian

Climbers

LLSS ≥3

37.4

> 2870

1932

31.6 (610/1932)

32.9 (252/767)

30.7 (358/1165)

J. Boos et al. (2018) [36]

Himalayas,Asia

Asian

Military servicemen

LLSS ≥3

32.1

5140

80

47.5 (38/80)

69.2 (18/26)

37.0% (20/54)

  1. AMS acute mountain sickness, LLSS Lake Louise Scoring System