Comparison of the prevalence and types of injuries co-occurring with chest injury in patients admitted to our hospital after the Wenchuan and Lushan earthquakes.

aSome patients contained concurrent injuries of multiple types; those patients therefore appear multiple times in the table.bExtremities include the upper and lower limbs, clavicle, scapula, bony pelvis and hip.*Based on the Pearson chi-squared test or continuity-corrected chi-squared test.