Statistical analysis:
A 2 X 2 table was made, based on which pooled sensitivity, specificity, and diagnostic odds ratio were calculated using the DerSimonian Lair technique. The diagnostic odds ratio calculated demonstrates the chest ultrasound capacity (test) to detect the condition (Pneumothorax). A higher DOR value indicates better diagnostic accuracy of the test. Moreover, the Cochran Q statistic and I2 index evaluated the heterogeneity of the studies included. Meta disc software was used for the creation of forest plots.