Medpage Today Confirmed: Large-Caliber Guns More Likely to Kill The analysis of Boston Police Department data revealed that shootings were more likely to result in death with both large-caliber (OR 4.54, 95% CI 2.37-8.70, P<0.001) and medium-caliber guns (OR 2.25, 95% CI 1.37-3.70, P=0.001) compared with small-caliber firearms, according to Anthony Braga, PhD, of Northeastern University in Boston, and Philip J. Cook, PhD, of Duke University […]