Table 2
Methodological quality of the included studies according to the Newcastle Ottawa Scale
Selection
Comparability
Outcome
(max. score 4)
(max. score 2)
(max. score 3)
Bean
17
4
2
3
Bravi
10
4
2
3
de Abajo
11
4
2
3
Giorgi Rossi
12
4
2
3
Liu
13
4
2
1
Mancia
14
4
2
3
Mehta
19
3
2
1
Reynolds
15
4
2
3
Tedeschi
16
4
2
3
Zhang
18
4
2
3