Journal of Ophthalmology / 2015 / Article / Tab 1 / Review Article
Efficacy and Safety of Topical Timolol Eye Drops in the Treatment of Myopic Regression after Laser In Situ Keratomileusis: A Systematic Review and Meta-Analysis Table 1 Demographic characteristics of eligible studies.
Study (year) Country Population Gender (male : female) Mean age (Yr) ± SD Timolol Control Timolol Control
Zhongwen 2014 [13 ] China 60 NS NS 24.47 ± 5.45 25.07 ± 6.23 Guan 2013 [14 ] China 60 18 : 12 16 : 14 20.0 ± 7.50 22.0 ± 5.50
Shojaei et al. 2012 [15 ] Iran 90 9 : 36 15 : 30 33.31 ± 10.90 34.42 ± 8.57
Zhang et al. 2011 [16 ] China 60 NS NS 25.37 ± 6.13 24.53 ± 2.31
Yang et al. 2010 [17 ] China 53 NS NS NS NS
EI-Awady et al. 2010 [18 ] Egypt 75 NS NS NS NS
SD: standard deviation; Yr: years; NS: data not available.