Fig. 3From: A comparison of DALYs for periodontal disease in China between 1990 and 2013: insights from the 2013 global burden of disease studyPD standardized DALYs rate of age groups in 1990 and 2013. Blue bar represent the data of 1990, red bar represent the data of 2013. a PD SDR per 100,000 persons of 14 age groups in 1990 and 2013. b % PD SDR in all diseases DALYs of 14 age groups in 1990 and 2013. c Variance ratio of % PD SDR in all diseases DALYs of 14 age groups between 1990 and 2013Back to article page