Participants and design
cognitive impairment, SD, MCI, Alzheimer’s disease, AD
The participants were 144 older adults, 77 from Spain and 67 from Mexico. Proportions of each gender were similar in both samples, 75.3% females (58 females, 19 males) in the Spanish sample and 76.1% females (51 females, 16 males) in the Mexican ample, giving a total of 75.7% females (109 females, 35 males) in the full sample. The mean age was 79.9 years (SD = 9.28) for the full sample, 83.1 years (SD = 7.54, range between 65 and 97 years) for Spain, and 76.2 years (SD = 9.74, range between 62 and 97 years) for Mexico. Men in both countries had similar mean ages, with 79.3 years (SD = 7.18) for Spanish men and 77.3 years (SD = 8.65) for Mexican men. With a mean age of 84.3 years (SD = 7.3), Spanish women were older than Mexican women in the sample, who had a mean age of 75.8 years (SD = 10.1).Inclusion criteria included (1) be 65 years of age or older; (2) healthy aging (HA), mild cognitive impairment (MCI), and Alzheimer’s disease (AD); and (3) who resided or visited a residential care facility or day centers where the intervention was carried out.