Report	Reason for exclusion
Ambrose (1996)	Duplicate/dissertation
Andrews & Harris (1964)	Unable to calculate effect size
Brosch et al. (1999)	Follow-up too short
Chang (2005)	Participants too old at study entry
Chow & Chang (2017)	Participants too old at study entry
Clare (2008)	Participants too old at study entry
Davis et al. (2007)	Participants too old at study entry
Forster (1997)	Insufficient study design
Forster (1997)	Duplicate/dissertation
Forster & Webster (2001)	Insufficient study design
Garnett et al. (2019)	Participants too old at study entry
Garnett et al. (2018)	Participants too old at study entry
Häge et al. (1994)	Follow-up too short
Feld (2006)	Insufficient study design
Hilger (2015)	Duplicate/dissertation
Howell & Davis (2011)	Participants too old at study entry
Howell et al. (2010)	Insufficient study design
Howell et al. (2006)	Insufficient study design
Howell et al. (2008)	Participants too old at study entry
Jameson (1955)	Participants too old at study entry
Johnson (1959)	Participants too old at study entry
Kelly & Perry (2011)	Unable to calculate effect size
Kreidler (2015)	Duplicate/dissertation
Månsson (2000)	Unable to calculate effect size
Mansson (2005)	Couldn't be translated
Mohan & Weber (2015)	Insufficient study design
Panelli et al. (1978)	Unable to calculate effect size
Reilly et al. (2013)	Follow-up too short
Robertson (2006)	Insufficient study design
Saez (2002)	Insufficient study design
Shimada et al. (2018)	Follow-up too short
K. Smith (2007)	Insufficient study design
K. Smith et al. (2017)	Insufficient study design
Spencer (2013)	Duplicate/dissertation
Throneburg (1997)	Duplicate/dissertation
Usler & Weber-Fox (2015)	Factor not measured near onset
Usler et al. (2017)	Factor not measured near onset