Table 1: Characteristics of the Studies Included in Meta-analysis.

Reference Country Published year No. of isolates Susceptibility
test
Synergy method(s)
Timurk [10] Turkey 2005 60 Agar dilution Checkerboard
Tripodi [6] Italy 2007 9 Micro dilution Time-kill
Ibanez [11] Spain 2010 4 Agar dilution Time-kill
Lee [12] USA 2013 2 Micro dilution Time-kill
Shields [13] USA 2010 17 E-test Checkerboard
Rodriguez [14] Argentina 2010 14 Agar dilution Time-kill
Giamarel [8] Greece 2001 39 Micro dilution Time-kill
Song [15] South Korea 2007 8 Micro dilution Time-kill
Montero [5] Spain 2004 2 Micro dilution Time-kill
Hogg [16] England 1998 13 Micro dilution Checkerboard
Liang [17] China 2011 4 Micro dilution Time-kill
Dizbay [18] Turkey 2009 25 E-test Checkerboard
Chang [19] Taiwan 2010 134 Micro dilution Checkerboard
Dong [20] China. 2014 25 Micro dilution Checkerboard
Jian [21] Australia 2007 17 Micro dilution Checkerboard
Giannouli [9] Italy 2011 57 Micro dilution Time-kill
Antonopoulou [22] Greece 2007 18 Micro dilution Time-kill