Objective: This study aimed to clarify the influence of age on rehabilitation outcome by using corrected motor FIM (FIM-M) effectiveness, an outcome indicator in which the influence of FIM-M at admission was corrected. Methods: The subjects were 1,101 stroke patients. The value of A in the equation, Corrected FIM-M effectiveness = FIM-M gain / (A-FIM-M at admission) was set as 42, 64, 79, 83, 87, 89, and 91 points (for FIM-M score at admission of 13-18, 19-24, 25-30, 31-36, 37-42, 43-48, and 49-90 points, respectively). The subjects were divided into 10 groups by age with a 5-year range in which the average of corrected FIM-M effectiveness was calculated. Results:The mean corrected FIM-M effectiveness was almost constant in five groups below 69 years and decreased almost linearly as age increased in five groups over 70 years. Conclusion:The outcome decreases almost linearly after the age of 70 years old.

Objective:The objective of the present study was to determine via multiple regression analysis what types of patient groups demonstrate large effects for factors in stroke rehabilitation. Methods: The subjects were 1,465 stroke patients in Kaifukuki rehabilitation wards who were registered in the 2014 Japan Rehabilitation Database. The subjects were stratified into eight groups based on age, motor functional independence measure (FIM) score at hospital admission, and cognitive FIM score at admission; multiple regression analysis was then performed with motor FIM score at discharge as the dependent variable. Results: Among the eight groups, the following independent variables were significant: motor FIM score at admission in seven groups, Nichijo-seikatsukino-hyokahyo at admission in five groups, age and post-onset duration of hospitalization in four groups, cognitive FIM score at admission in three groups, and pre-onset modified Rankin Scale in one group. Conclusion:The creation of multiple predictive formulas in multiple regression analysis enables identification of the types of patient groups which demonstrate large effects for factors in stroke rehabilitation.