['People who hunt deer from elevated tree stands may improve the chances of a successful hunt but also risk serious injury from a fall to the ground.', 'The objective of the current investigation is to estimate the rates of injuries from falls from tree stands using a population-based study design.', 'Annual and age-specific rates were calculated using injury data collected from 1987 to 2006 from all accredited Pennsylvania trauma centers and hunting license sales and game-take mail surveys from the Pennsylvania Game Commission.', 'From 1987 through 2006, 2.73 people (n=499) per 100,000 licensed deer hunters were injured from falls from tree stands; seven people died. Rates increased from 0.59 in 1987 to 7.08 in 2006 (p<0.001). Rates increased with age (p<0.001) and were highest among hunters aged 40-49 years. The case-fatality rate was 1.4%.'] Does injuries due to fall from hunters ' tree stands in Pennsylvania?