| ♀ ♂ | ♀ | ♂ | Criteria |
---|
Peatfield (1995 UK) [19] | 59.5 | | | |
Mannix (1997 US) [32] | 12a | | | >1/week |
Takeshima (2004 J) [26] | | 17 | 54.7 | >1/week |
Scher (2005 NL) [33] | 52 | | | |
Aamodt (2006 N) [31] | | 55 | 73 | Last 2 weeks |
Wober (2006 AU) [24] | 40.9b | | | |
Panconesi (2007 I) [34] | | 42 | | Last 3 months |
- The year of publication and countries abbreviation are given in parenthesis
- a77%, b 92%: percentage of females in the sample