The Relationship between Serum Zinc Level and Heart Failure: A Meta-Analysis

Table 1

Characteristics of subjects in included studies.

Studies	Country	Number of participants		Age (year)		Subgroups of HF	Score
		HF	Controls	HF	Controls
Sullivan et al., 1979	USA	42	37	NA	NA	ICM	6
Atlihan et al., 1990 (1)	Turkey	29	11			NA	6
Atlihan et al., 1990 (2)	Turkey	29	11			NA	6
Oster, 1993	Germany	20	50			IDCM	8
Golik et al., 1993 (1)	Israel	9	20			NA	8
Golik et al., 1993 (2)	Israel	15	20			NA	8
Cénac et al., 1996	France	35	36	NA	NA	NA	7
De Lorgeril et al., 2001	France	21	18	27–76	34–68	CHF	7
Topuzoglu et al., 2003	Turkey	54	20	18–75	21–73	IDCM	6
Kosar et al., 2006 (1)	Turkey	54	30			CHF	8
Kosar et al., 2006 (2)	Turkey	26	30			IDCM	8
Kosar et al., 2006 (3)	Turkey	28	30			ICM	8
Kosar et al., 2006 (4)	Turkey	24	30			NA	8
Kosar et al., 2006 (5)	Turkey	20	30			NA	8
Kosar et al., 2006 (6)	Turkey	10	30			NA	8
Salehifar et al., 2008 (1)	Iran	18	27			IDCM	8
Salehifar et al., 2008 (2)	Iran	3	27			IDCM	8
Salehifar et al., 2008 (3)	Iran	4	27			IDCM	8
Salehifar et al., 2008 (4)	Iran	9	27			IDCM	8
Salehifar et al., 2008 (5)	Iran	2	27			IDCM	8
Shokrzadeh et al., 2009 (1)	Iran	30	27			ICM	7
Shokrzadeh et al., 2009 (2)	Iran	17	27			ICM	7
Shokrzadeh et al., 2009 (3)	Iran	10	27			ICM	7
Ghaemian et al., 2011 (1)	Turkey	38	40			NA	8
Ghaemian et al., 2011 (2)	Turkey	40	40			NA	8
Alexanian et al., 2014 (1)	Greece	81	21			NA	8
Alexanian et al., 2014 (2)	Greece	44	21			NA	8