Table 2 Characteristics of studies of nebulised magnesium sulphate

Study	Location	Publication year	Total sample	Age range (years)	Sex %F:M	Asthma severity	Jadad Score	Outcome measure
Aggarwal	India	2006	100	13–60	40:60	Severe–life threatening	5	PEFR and admissions
Drobina	USA	2006	110	12–60	43:67	Mild–severe	5	PEFR and admissions
Kokturk	Turkey	2005	26	18–60	73:27	Moderate–severe	2	PEFR (% predicted) and admissions
Mahajan	USA	2004	62	5–17	45:55	Mild–moderate	4	FEV₁ (% predicted) and admissions
Hughes	New Zealand	2003	52	16–65	52:48	Severe–life threatening	5	FEV₁ and admissions
Bessmertny	USA	2002	74	18–65	73:27	Mild–moderate	5	FEV₁ (% predicted)
Nannini	Argentina	2000	35	>18	63:37	Acute exacerbation	3	PEFR and admissions
Mangat	India	1998	33	12–60	70:30	Acute exacerbation	3	PEFR (% predicted) and admissions
Meral	Turkey	1996	40	Children	Unknown	Acute asthma	0	PEFR (% change from baseline) and respiratory score

FEV₁, forced expiratory volume in 1 s; FVC, forced vital capacity; PEFR, peak expiratory flow rate.