Automated Determination of Bone Age in a Modern Chinese Population

Figure 2

The difference between Greulich-Pyle bone age and chronological age, shown versus age. The data have been spread a bit around the true age for better display. The solid line indicates the average at each age, while the short dashed lines are drawn at the mean value plus or minus two SDs at each age. The Shanghai and Dalian curves are the mean values for these two cities.