Confirmatory test phenylalanine cutoff value of 360 ± 100 µmol/L
| |
Europe
|
0.97 (0.52–1.53)
|
93.8
|
4
|
Cabalska et al. [58]
|
Poland
|
Mathias and Bickel [51]
|
Germany
|
Vilarinho et al. [59]
|
Portugal
|
Visakorpi et al. [39]
|
Finland
|
Latin America
|
1.38 (0.51–3.01)
|
NA
|
1
|
Ramalho et al. [67]
|
Brazil
|
Middle East/North Africa
|
1.60 (1.06–2.31)
|
NA
|
1
|
Habib et al. [44]
|
Iran
|
North America
|
0.49 (0.38–0.61)
|
0.0
|
2
|
Frazier et al. [42]
|
United States
|
Wainer and Sideman[43]
|
United States
|
West Pacific
|
0.63 (0.03–1.75)
|
96.5
|
3
|
Liu and Zuo [83]
|
China
|
Su et al. [86]
|
China
|
Wang et al. [88]
|
China
|
Global (non-regionally weighted)
|
0.85 (0.51–1.26)
|
95.9
|
11
|
–
|
–
|
Global (regionally weighted)b
|
0.96 (0.50–1.42)
|
NA
|
11
|
–
|
–
|
Confirmatory test phenylalanine cutoff value of 600 ± 100 µmol/L
| |
Europe
|
1.18 (0.75–1.69)
|
85.8
|
4
|
Lindner et al. [50]
|
Germany
|
Gerasimova et al. [63]
|
USSR/Russia
|
Mardesic et al. [65]
|
Yugoslavia
|
Smon et al. [61]
|
Slovenia
|
Latin America
|
0.65 (0.14–1.46)
|
64.2
|
2
|
Botler et al. [66]
|
Brazil
|
Ramalho et al. [67]
|
Brazil
|
Middle East/North Africa
|
0.37 (0.21–0.61)
|
NA
|
1
|
Abbaskhanian et al. [69]
|
Iran
|
West Pacific
|
0.23 (0.12–0.36)
|
55.9
|
3
|
Boneh et al. [34]
|
Australia
|
Niu et al. [91]
|
Taiwan
|
Wang et al. [88]
|
China
|
Global (non-regionally weighted)
|
0.66 (0.38–1.02)
|
94.1
|
10
|
–
|
–
|
Global (regionally weighted)b
|
0.50 (0.37–0.64)
|
NA
|
10
|
–
|
–
|
Confirmatory test phenylalanine cutoff value of 1200 ± 200 µmol/L
| |
Europe
|
0.78 (0.40–1.3)
|
96.9
|
7
|
Cabalska et al. [58]
|
Poland
|
Gerasimova et al. [63]
|
USSR/Russia
|
Missiou-Tsagaraki et al. [54]
|
Greece
|
Ounap et al. [38]
|
Estonia
|
Smon et al. [61]
|
Slovenia
|
Walker et al. [64]
|
United Kingdom
|
Zaffanello et al. [57]
|
Italy
|
Latin America
|
0.58 (0.30–0.94)
|
29.2
|
2
|
Cornejo et al. [68]
|
Chile
|
Ramalho et al. [67]
|
Brazil
|
Middle East/North Africa
|
0.36 (0.04–0.94)
|
91.2
|
3
|
Abbaskhanian et al. [69]
|
Iran
|
Karamifar et al. [70]
|
Iran
|
Al Hosani et al. [74]
|
United Arab Emirates
|
North America
|
0.53 (0.38–0.72)
|
NA
|
1
|
Hansen et al. [75]
|
United States
|
Southeast Asia
|
0.03 (0.02–0.05)
|
NA
|
1
|
Pangkanon et al. [80]
|
Thailand
|
West Pacific
|
0.22 (0.03–0.56)
|
94.6
|
6
|
Boneh et al. [34]
|
Australia
|
Chen et al. [82]
|
China
|
Niu et al.[91]
|
Taiwan
|
Su et al. [86]
|
China
|
Yoon et al. [90]
|
South Korea
|
Wang (2019) [88]
|
China
|
Global (non-regionally weighted)
|
0.47 (0.26–0.74)
|
98.0
|
20
|
–
|
–
|
Global (regionally weighted)b
|
0.30 (0.20–0.40)
|
NA
|
20
|
–
|
–
|
Overall analysisc
| |
Europe
|
1.14 (0.89–1.41)
|
92.2
|
19
|
Antonozzi et al. [56]
|
Italy
|
Cabalska et al. [58]
|
Poland
|
Dluholucký and Knapková [60]
|
Slovakia
|
Fernández-Iglesias et al. [62]
|
Spain
|
Gerasimova et al. [63]
|
USSR/Russia
|
Kocova and Anastasovska [41]
|
Macedonia
|
Lindner et al. [50]
|
Germany
|
Loukas et al. [53]
|
Greece
|
Mardesic et al. [65]
|
Yugoslavia
|
Mathias and Bickel [51]
|
Germany
|
Mehes et al. [55]
|
Hungary
|
Missiou-Tsagaraki et al. [54]
|
Greece
|
Ounap et al. [38]
|
Estonia
|
Smon et al. [61]
|
Slovenia
|
Thalhammer [49]
|
Austria
|
Vilarinho et al. [59]
|
Portugal
|
Visakorpi et al. [39]
|
Finland
|
Walker et al. [64]
|
United Kingdom
|
Zaffanello et al. [57]
|
Italy
|
Latin America
|
0.98 (0.29–2.03)
|
95.8
|
3
|
Botler et al. [66]
|
Brazil
|
Cornejo et al. [68]
|
Chile
|
Ramalho et al. [67]
|
Brazil
|
Middle East/North Africa
|
1.18 (0.64–1.87)
|
96.5
|
7
|
Abbaskhanian et al. [69]
|
Iran
|
Alfadhel et al. [72]
|
Saudi Arabia
|
Al Hosani et al. [74]
|
United Arab Emirates
|
Habib et al. [44]
|
Iran
|
Karamifar et al. [70]
|
Iran
|
Motamedi et al. [71]
|
Iran
|
Ozalp et al. [73]
|
Turkey
|
North America
|
0.81 (0.58–1.07)
|
82.3
|
6
|
Frazier et al. [42]
|
United States
|
Hansen et al. [75]
|
United States
|
Kelly and Palombi [76]
|
United States
|
Maccready and Hussey [28]
|
United States
|
Wainer and Sideman [43]
|
United States
|
Zytkovicz et al. [77]
|
United States
|
Southeast Asia
|
0.03 (0.02–0.05)
|
NA
|
1
|
Pangkanon et al. [80]
|
Thailand
|
West Pacific
|
0.68 (0.43–0.98)
|
94.2
|
8
|
Boneh et al. [34]
|
Australia
|
Lin et al. [29]
|
China
|
Liu and Zuo [83]
|
China
|
Niu et al. [91]
|
Taiwan
|
Su et al. [86]
|
China
|
Wang et al. [88]
|
China
|
Yoon et al. [90]
|
South Korea
|
Zhan et al. [89]
|
China
|
Global (non-regionally weighted)
|
0.96 (0.75–1.19)
|
98.0
|
44
|
–
|
–
|
Global (regionally weighted)b
|
0.64 (0.53–0.75)
|
NA
|
44
|
–
|
–
|