Table 1. Characteristics of data sets.

Median, (quartiles) and minimum and maximum values of continuous variables. Percentage of categorical variables.

Author	Year	No. of cases	Male %	Age	GCS	Volume of haematoma	Time to randomisation	Lobar haematoma %	IVH present %	Favourable outcome % (responders)
Auer	1989	100	NR*	49% <50yrs	48% 8 or less	49% <50ml	NR	45	32	25%
Juvela	1989	52	58	51 (42-58) 24-65	12 (7-14) 4-15	58 (36-77) 17-152	NR	15	62	12%
Morgenstern	1998	34	65	51 (43-63) 22-77	11 (10-14) 5-15	50 (30-76) 11-170	4 (1-6) 0 -11	24	NR	19% (31)
Zuccarello	1999	20	55	64 (59-70) 27-80	12 (9-14) 4-15	33 (19-61) 16-105	7 (4-10) 2-19	50	50	45%
Chen	2001	500	72	58 (49-65) 12-74	11 (9-13) 7-15	30 (22-45) 12-130	35% <8hr 22%>24hr	5	4	23%
Teernstra	2003	70	57	70 (61-74) 46-87	9 (7-11) 4-15	59 (33-81) 10-132	4 (2-9) 0-62	54	31	11%
Mendelow	2005	1033	57	62 (52-70) 19-93	12 (9-14) 5-15	38 (24-62) 4-210	20 (10-36) 2-72	35	39	18% (965)
Wang	2009	377	63	56 (50-65) 40-75	12 (10-14) 9-15	32 (28-37) 25-44	3 (2-8) 1-67	0	19	45%

• NR – Not recorded