Fig. 4
The global change trends of age-standardized incidence rate and incidence number for neck pain from 1990 to 2019, and the predicted trends between 2020 and 2044 by BAPC model. A-C respectively show the age-standardized incidence rates for both sexes, males and females; (D) shows the incidence number by sex. The dotted line shows the true trend from 1990 to 2019, while the solid line and shadow show the predicted trend between 2020 and 2044 and its 95% confidence interval (95% CI). Abbreviations: BAPC, Bayesian age-period-cohort