Figure 1.

Time course of MBI scores for (A) two and (B) four age groups at 2 weeks, 1 month, 6 months, and 30 months. Data are expressed as the mean (95% confidence interval). MBI, Modified Barthel Index. MBI scores increased significantly within 6 months after stroke onset and did not change significantly between 6 and 30 months after stroke onset in patients aged <70 years. Patients aged ≥70 years exhibited significant increases in MBI scores until 1 month after stroke onset and a decline between 6 and 30 months after stroke onset. * Adjusted p-value < 0.05 for within-patient time effect; pairwise comparison with former score for time. † Adjusted p-value < 0.05 for between-patients group effect; pairwise comparison with adjacent score for age group.