Figure 6.
Incidence Rate15 and R&D Expenditures.32 (A) Number of articles and incidence rate ASR per 100 000. Brown dots: All countries: r2=0.15, (coefficient of determination), Pearson ***P < .0001. Black dots: OECD countries: linear regression r2=0.36, Pearson ***P < .0001. (B) Number of articles and expenditures for R&D in million US dollar for OECD countries: linear regression r2 = 0.63, Pearson ***P < .0001. Abbreviations: R&D, research and development; ASR, age standardized rate; OECD, Organization for Economic Co-operation and Development.