Figure 2

Sequential changes in LTCB grades over 12 months after surgery Data of IS and PS groups were combined. The X-axis indicates four assessment periods (parentheses indicate the number of missing data). Y-axis indicates grades on LTCB scales on disability (left) and dementia (right). Frequencies of low grades (G1, 2, 3) increased over 12 months after surgery for both LTCB disability and dementia.