First author*
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
Sum
|
---|
Treatment-related observational studies
|
---|
Driessen 2008[66]
|
1
|
1
|
1
|
0
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
13
|
Fortune 2003[6]
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
16
|
Lecha 2005[68]
|
1
|
1
|
1
|
0
|
1
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
10
|
Naldi 2008[69]
|
1
|
1
|
0
|
1
|
0
|
1
|
1
|
1
|
na
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
9
|
Paul 2003[70]
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
11
|
Wahl 2005[71]
|
1
|
1
|
1
|
0
|
0
|
0
|
1
|
1
|
na
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
7
|
Heiberg 2008[72]
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
15
|
Kristensen 2008[74]
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
0
|
0
|
0
|
14
|
Sparado 1997[78]
|
1
|
1
|
1
|
0
|
0
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
0
|
0
|
1
|
1
|
0
|
0
|
11
|
Saad 2009[79]
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
13
|
Non-treatment related observational studies
|
Carrascosa 2006[82]
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
na
|
1
|
0
|
1
|
0
|
0
|
1
|
1
|
na
|
na
|
11
|
Colombo 2008[11]
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
na
|
1
|
0
|
1
|
0
|
0
|
1
|
1
|
na
|
na
|
11
|
Schmid-ott 2005[83]
|
0
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
na
|
1
|
0
|
1
|
0
|
0
|
1
|
1
|
na
|
na
|
10
|
Husted 2007[2]
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
na
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
na
|
na
|
13
|
Kane 2003[93]
|
1
|
1
|
1
|
0
|
1
|
0
|
1
|
1
|
na
|
1
|
1
|
1
|
0
|
0
|
1
|
0
|
na
|
na
|
10
|
Lindqvist 2008[95]
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
na
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
na
|
na
|
12
|
- *Primary paper for the study or the most recent analysis of the cohort. NA, not applicable