| Sampling | Participation rate | Population | Sample size |
---|---|---|---|---|
 | 1 = Non-random | 1<60% | 1 = Selected | 1<100 |
 | 2 = Random | 2 ≥ 60% | 2 = General | 2 ≥ 100 |
Bagley 1997 [9] | 2 | 2 | 2 | 1 |
Bontempo & D'Augelli 2002 [10] | Not known | 2 | 1 | 2 |
Case et al. 2004 [11]* | 1 | 2 | 1 | 2 |
1 | 2 | 2 | 1 | |
Cochran & Mays (2000b) [14] | 1 | 2 | 2 | 1 |
2 | 2 | 2 | 1 | |
Faulkner et al. (1998) [17] | Not known | 1 | 1 | 2 |
Fergusson et al 1999 [18]* | 1 | 2 | 1 | 1 |
Gilman et al. 2001 [19] | 2 | 2 | 2 | 2 |
Gruskin et al. 2001 [20] | 2 | 1 | 2 | 2 |
Herrell et al. 1999 [21] | Not known | 2 | 1 | 2 |
Jorm et al. 2002 [22] | 2 | 1 | 2 | 2 |
King et al. 2003 [1] | 1 | NA | 1 | 2 |
Mathy 2002 [23] | 1 | 1 | 1 | 2 |
Mathews et al. 2002 [24] | 1 | 1 | 1 | 2 |
McCabe et al. 2003 [25] | 2 | 1 | 1 | 2 |
Mc Cabe et al. 2004 [26] | 2 | 1 | 1 | 1 |
Nawyn et al. 2000 [27] | Not known | 1 | 1 | 1 |
Remafedi et al. 1998 [28] | Not known | 2 | 1 | 2 |
Robin et al. 2002 [29] | Not known | 2 | 1 | 2 |
Russell & Joyner 2001 [30] | Not known | Not known | 1 | 2 |
Sandfort et al. 2001 & Sandfort, de Graf, Bijl (2003) [31, 32] | 2 | 2 | 2 | 1 |
Skegg et al. 2003 [33]* | 1 | 2 | 1 | 1 |
Wichstrom & Hegna 2003 [34]* | 1 | 2 | 1 | 2 |
Drabble et al. 2005 [35] | 2 | Not known | 2 | 2 |