First author | Year | Nation | Effect size (95% CI) | Ref |
---|---|---|---|---|
DOvidio | 2018 | Italy | 0.30 (0.19–0.45) | [14] |
Visser | 2017 | Netherlands | 0.77 (0.33–1.21) | [15] |
Hollinger | 2016 | USA | 0.80 (0.53–1.21) | [10] |
Mitchell | 2015 | USA | 0.47 (0.38–0.58) | [11] |
Mariosa | 2015 | Sweden | 0.79 (0.68–0.91) | [16] |
Seelen | 2014 | Netherlands | 0.72 (0.51–1.01) | [17] |
Turner | 2013 | England | 0.98 (0.85–1.13) | [18] |
Kioumourtzoglou | 2015 | Denmark | 0.61 (0.46–0.80) | [19] |
Moglia | 2017 | Italy | 1.05 (0.78–1.42) | [20] |
Korner | 2012 | Germany | 1.11 (0.76–1.60) | [21] |
Armon | 1991 | USA | 1.00 (0.29–3.50) | [13] |
Sun | 2015 | China | 1.35 (1.10–1.67) | [22] |
Pool 1 |  |  | 0.73 (0.59–0.90) |  |
Pool 2 |  |  | 0.77 (0.62–0.96) |  |