A new survey from benefits, compensation and human resources consulting firm The Segal Group Inc. predicts that prescription drug cost trends, driven largely by price inflation and expensive specialty drugs, are expected to reach their highest point since 2004 next year. Prescription drug costs increased by 10.4 percent overall last year, but Segal estimates an 11.3 percent increase for 2016. The trend is likely to be driven by specialty drugs for cancer and chronic conditions like diabetes – Segal expects those drugs will hit 19.4 percent price increases in 2015 and 18.9 percent in 2016. However, the survey notes that system cost increases are not limited just to prescription drugs, which have been an increasing burden for at least the last five to ten years. Segal also cites price inflation for hospital stays as a factor.