CL<25mm P 95%CI 95%CI I2 RR Exclude the literature name The p values were after the sensitivity analysis Publication bias Quality of evidence
sptb<34 0.04* 0.73 0.54,0.98 80% 2.07 Nicolaided 2015 0.0005* + Very low
ptb<34 0.0001* 0.53 0.38,0.73 0% 3.82 - - - low
<2500 <0.00001* 0.62 0.54,0.72 95% 6.32 Merced2019 0.05 + Very low
<1500 0.87 0.97 0.68,1.38 0% 0.16 - - - low