Anuntaseree (2001), Thailand
|
Boys and girls
|
Habitual snoring vs. never snoring
|
1.35
|
0.95
|
1.91
|
Table 2 calculation
|
Brunetti (2011), Italy
|
Boys and girls
|
AHI > 3
|
1.65
|
0.53
|
5.18
|
Table 3 calculation
|
Castronovo (2002), Australia
|
Boys and girls
|
Habitual snoring vs. never snoring
|
1.09
|
0.84
|
1.41
|
Table 1 calculation
|
Corbo (1989), Italy
|
Boys and girls
|
Habitual snoring vs. non snoring
|
1.72
|
1.51
|
1.96
|
Table IV calculation
|
Corbo (2001), Italy
|
Boys and girls
|
Habitual snoring vs. non snoring
|
1.55
|
1.06
|
2.27
|
Table 2 calculation
|
Ersu (2004), Turkey
|
Boys and girls
|
High risk OSA: Brouillette’s questionnaire OSA scores > 3.5
|
1.55
|
1.13
|
2.13
|
Table 3 calculation
|
Franklin (2004), Sweden
|
Men and women combined
|
Habitual snoring: loud and disturbing snoring at least 3 nights a week
|
1.49
|
1.30
|
1.70
|
Table 1 and Results 2nd paragraph calculation
|
Gill (2012), New Zealand
|
Boys and girls
|
Habitual snoring: often (4–6 night/week) or always (every night/day)
|
1.60
|
0.89
|
2.87
|
Table 3 calculation
|
Gozal (2008), USA
|
Boys and girls
|
Habitual snoring: almost always (> 4 nights/week) or always on snoring frequency and medium loud to loud on loudness of snoring
|
1.34
|
1.22
|
1.47
|
Table 1 calculation
|
Huang (2019), China
|
Men and women combined
| AHI≧5 |
1.35
|
1.13
|
1.62
|
Table 3 calculation
|
Kaditis (2004), Greece
|
Boys and girls
|
Habitual snoring: snoring every night
|
1.89
|
1.35
|
2.64
|
Table 5 calculation
|
Kannan (2017), USA
|
Boys and girls
| Habitual snoring ≧ 3 nights/week |
2.00
|
1.48
|
2.70
|
Table 2 calculation
|
Kheirandish-Gozal (2014), Iran
|
Boys and girls
| Habitual snoring ≧ 3 nights/week |
2.25
|
1.41
|
3.59
|
Table 4 calculation
|
Kuehni (2008), UK
|
Boys and girls
|
Habitual snoring: snoring almost always
|
1.67
|
1.43
|
1.95
|
Table 1 calculation
|
Li AM (2010), Hong Kong
|
Boys and girls
|
Habitual snoring: frequently, three nights or more per week
|
0.93
|
0.77
|
1.12
|
Table 3 calculation
|
Li S (2010), China
|
Boys and girls
|
Habitual snoring: frequently (2–4 nights/week) or always (5–7 nights/week)
|
1.16
|
1.06
|
1.26
|
Table 1 calculation
|
Nosetti (2011), Italy
|
Boys and girls
|
AHI (NR)
|
2.31
|
2.04
|
2.61
|
Abstract calculation
|
Ohida (2007), Japan
|
Women
|
Snoring (often or always)
|
1.26
|
1.05
|
1.51
|
Table 2 calculation
|
Owen (1996), UK
|
Boys and girls
|
Snoring (sometimes or often)
|
1.83
|
1.20
|
2.79
|
Table 3 calculation
|
Sahin (2009), Turkey
|
Boys and girls
|
Habitual snoring: frequently or almost every day
|
1.79
|
0.96
|
3.34
|
Table 1 calculation
|
Sogut (2005), Turkey
|
Boys and girls
|
AHI > 3
|
2.19
|
0.70
|
6.85
|
Table 4 calculation
|
Sogut (2009), Turkey
|
Boys and girls
|
Habitual snoring: often and always
|
1.56
|
0.85
|
2.87
|
Table 3 calculation
|
Urschitz (2004), Germany
|
Boys and girls
|
Habitual snoring: frequently and always
|
1.29
|
0.91
|
1.83
|
Table 2 calculation
|
Włodarska (2020), Poland
|
Boys and girls
|
OSA: children aged < 13 years, AHI > 1.5; children aged > 13, AHI > 5
|
4.41
|
1.34
|
14.48
|
Table 1 calculation
|
Zhang (2004), Australia
|
Boys and girls
|
Habitual snoring more than 4 times/week
|
1.50
|
1.13
|
2.00
|
Table 2 and Table 3 calculation
|
Zhu (2013), Hong Kong
|
Boys and girls
| Habitual snoring ≧ 3 nights/week |
1.34
|
0.95
|
1.89
|
Table 1 calculation
|