The Combined Multicomponent Intervention Specifically in Rural Community Older Adults at High Risk for Mild Cognition Impairment

Cognitive function was assessed using the Minimum Mental State Examination (MMSE) scale (Folstein, Folstein, & McHugh, 1975).The MMSE evaluates five domains: orientation, registration, attention and calculation, recall, and language abilities. Total scores range from 0 to 30, with higher scores indicating better cognitive performance.

Height (cm) was measured using a wall-mounted height board, with the participant standing upright without shoes. Weight (kg) was measured using a electronic load cell scale, with light indoor clothing and after voiding. Body Mass Index (BMI) was calculated by dividing a person's weight in kilograms by the square of their height in meters (kg/m²).

Waist circumference (cm) was measured using a flexible, non-elastic tape measure at the midpoint between the lowest rib and the iliac crest, with the participant standing and breathing normally. The measurement is taken to the nearest 0.1 cm at the end of normal expiration.

Blood pressure was assessed by measuring systolic and diastolic pressures (mmHg).

Activities of daily living were assessed via the Activities of daily living (ADL) scale (Ferrucci et al., 1996). It employs a scoring range of 14 to 56, with higher scores indicating poorer functional ability.

Physical performance was assessed via the Short Physical Performance Battery (SPPB) scale (Cruz-Jentoft et al., 2010). It has a scoring range of 0 to 12, with higher scores reflecting better physical performance.

Participant adherence was summarized as the proportion of total participants who attended at least 50% of the intervention sessions, and separately for those who attended at least 75% of the sessions.

Participant satisfaction was assessed using a self-developed scale, with a total score of 30 points; higher scores indicated greater satisfaction with the program.