1. Descriptive details of included studies.

Study	Country	Follow‐upa	N	Mean age	Male participants	Diagnosis (majority)	Working history (majority)
Au 2015	China	short	90	36	63%	Psychotic disorder	yes
Beard 1963	USA	short	212	N/A	60%	Psychotic disorder	N/A
Becker 1967	USA	short	50	46	N/A	Psychotic disorder	yes
Bejerholm 2015	Sweden	long	120	38	56%	Psychotic disorder	yes
Blankertz 1996	USA	short	122	36	64%	Psychotic disorder	yes
Bond 1986	USA	long	131	25	69%	Psychotic disorder	yes
Bond 1995	USA	short	86	35	51%	Psychotic disorder	yes
Bond 2007	USA	long	200	39	64%	Psychotic disorder	no
Bond 2015b	USA	short	90	44	79%	Psychotic disorder	yes
Burns 2007	Europe (UK, Italy, Germany, Netherlands, Bulgaria, Switzerland)	long	312	38	60%	Psychotic disorder	yes
Burns 2015	UK	long	123	38	59%	Psychotic disorder	yes
Chandler 1996	USA	long	256	N/A	43%	Psychotic disorder	N/A
Craig 2014	UK	short	159	24	73%	Psychotic disorder	yes
Dincin 1982	USA	short	132	25	53%	Psychotic disorder	N/A
Drake 1996	USA	long	143	37	48%	Psychotic disorder	N/A
Drake 1999b	USA	long	152	39	39%	Psychotic disorder	N/A
Drake 2013	USA	long	2238	44	47%	Affective disorder	N/A
Drebing 2005	USA	short	21	46	95%	Affective disorder + substance dependence	yes
Drebing 2007	USA	short	100	46	99%	Affective disorder + substance dependence	yes
Eack 2009	USA	long	58	26	69%	Psychotic disorder	N/A
Gervey 1994	USA	short	34	19	67%	N/A	no
Gold 2006	USA	long	143	N/A	38%	Psychotic disorder	yes
Hoffmann 2012	Switzerland	long	100	34	65%	Affective disorder	yes
Howard 2010	UK	long	219	38	67%	Psychotic disorder	yes
Killackey 2008	Australia	short	41	21	81%	Psychotic disorder	yes
Killackey 2014	Australia	short	146	20	67%	Psychotic disorder	yes
Latimer 2006	Canada	short	150	40	62%	Psychotic disorder	yes
Lecomte 2014	Canada	short	24	32	71%	Psychotic disorder	N/A
Lehman 2002	USA	long	219	42	57%	Psychotic disorder	yes
McFarlane 1996	USA	long	68	30	65%	Psychotic disorder	N/A
McFarlane 2000	USA	long	69	33	70%	Psychotic disorder	N/A
McGurk 2007	USA	long	48	38	55%	Psychotic disorder	yes
McGurk 2009	USA	long	34	44	59%	Psychotic disorder	yes
Michon 2014	Netherlands	long	151	35	74%	Psychotic disorder	yes
Mueser 2004	USA	long	135	41	61%	Psychotic disorder	yes
Nuechterlein 2012	USA	long	69	25	67%	Psychotic disorder	N/A
O'Brien 2003	UK	short	1037	N/A	55%	Psychotic disorder	yes
Oshima 2014	Japan	short	37	41	49%	N/A	yes
Penk 2010	USA	short	89	45	100%	Affective disorder +substance abuse/dependence	yes
Schonebaum 2006	USA	long	177	38	55%	Psychotic disorder	yes
Tsang 2001	China	short	97	36	62%	Psychotic disorder	yes
Tsang 2010	China	long	189	35	49%	Psychotic disorder	yes
Twamley 2012a	USA	short	58	51	64%	Psychotic disorder	yes
Viering 2015	Switzerland	long	183	43	47%	Affective disorder	yes
Waghorn 2014	Australia	short	208	32	69%	Psychotic disorder	N/A
Walker 1969	USA	short	28	N/A	96%	Psychotic disorder	N/A
Wong 2008	China	long	92	34	60%	Psychotic disorder	N/A
Xiang 2007	China	long	103	38.6	47%	Psychotic disorder	N/A

^aFollow‐up: short ≤ 1 year; long > 1 year.

^bSecondary outcomes:

1 = maintaining employment
 2 = obtaining non‐competitive employment
 3 = days to first competitive employment
 4 = mental health
 5 = quality of life
 6 = dropouts
 7 = hospital admissions.