Multi-Component Interventions in Older Adults Having Subjective Cognitive Decline (SCD)—A Review Article
Abstract
:1. Introduction
1.1. Management of Subjective Cognitive Decline
1.2. Multi-Component Intervention
2. Materials and Methods
2.1. Sources of Information
2.2. Years of Publication
2.3. Search Strategy
2.4. Inclusion and Exclusion Criteria
2.5. Selection of Papers
3. Results
3.1. Assessment of Outcomes
3.2. Study Yield
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Author | Study Design | No. of Subjects | Age: Mean(±S.D)/Range (Years) | Intervention & Description | Duration | Outcomes |
---|---|---|---|---|---|---|
Boa Sorte Silva et al. (2018) [57] | Randomized controlled trial | 127 | 67.5 (±7.3) |
| 24 weeks (3 days/week) | No significant differences in the mean change when the global cognitive functioning (GCF) and memory scores were compared with baseline observation. The intervention group, however, had significant improvements in memory and GCF compared to the control group at 24 weeks and 52 weeks (follow-up). Both groups showed slight improvements in concentration, reasoning, and planning. |
Montoya-Murillo et al. (2020) [66] | Randomized controlled trial | 124 | 55 and above | Rohacop: A comprehensive interactive intervention that entails sessions on attention and concentration for over 4 weeks; learning and memory for 3 weeks; language for 3 weeks; executive functioning for 3 weeks; and processing speed training given throughout. Control: Occupational tasks including singing, drawing, crafts, gardening, and reading and commenting on a newspaper. | 3 months | The participants in the Rohacop group showed significant improvement in neurocognition compared to the control group. The mini-mental state examination (MMSE) of the Rohacop group was higher than the control group, albeit not significantly. Again, there was a significant reduction in subjective complaints for both groups. |
Zuniga et al. (2016) [58] | Randomized controlled trial | 179 | 66.4 (±5.7) |
| 12 months | No significant difference was found in subject memory impairment for both groups, though SCD was observed to be stable throughout. The interventions, however, brought about significant effects on happiness, perceived stress reduction, and SCD reporting. This led to the conclusion that SCD is more of a psychological event than a neurological one. |
Frankenmolen et al. (2018) [61] | Randomized controlled trial | 60 | 66.2 (±7.2) |
| No significant improvement in subjective memory impairment after the interventions were given, but 4% of the subjects in each group improved clinically and significantly in terms of subjective memory complaints. The increase in the use of strategies was found to be the strongest predictor for SMC improvement in the MST group. Larger significant improvement in personal memory goals was also found for the MST group. Overall, significant improvements in 2 memory tests—memory test performance and subjective memory functioning in daily life—were observed in both groups. | |
Ramnath et al. (2021) [59] | Quasi-experimental | 45 | 72 (±5) |
| 12 weeks | There were significant improvements in cognitive measures of processing speed and executive functioning in the IVG group compared to the CMI group. Furthermore, global cognitive functioning was found to be significantly improved for the IVG group. A significantly better improvement in balance and mobility was also realized with the IVG group, and this indirectly meant improvement in quality of life. |
Cohen-Mansfield et al. (2015) [62] | Randomized controlled trial | 44 | 65 and above | Educative courses leading to the development of the following:
| 10 weeks | All interventions showed significant improvements in global cognitive function score compared to what was obtainable for the baseline. However, the CTC group was observed to have significantly better global cognition score than the other groups. Slight improvements in executive function, visual spatial function, and attention were found across all the groups. Plus, loneliness and self-report on memory difficulties also declined with all the interventions. |
Oh et al. (2017) [64] | Randomized controlled trial | 53 | 50–68 |
| 8 weeks | Working memory scores were found to be significantly improved in the SMART group than the Fit Brains group. Subjective memory complaints, however, only declined in the Fit Brains group. |
kwok et al. (2012) [41] | Randomized placebo-controlled trial | 223 | 65 and above |
| Sognitive functions concerning memory and conceptualization improved significantly, and the outcome was sustained for 9 or more months. | |
Andrieu et al. (2020) [65] | Multicenter RCT | 1680 | 70 and above |
| 3 years | Slight improvements in cognitive performance, although these were not statistically significant across all groups. |
Chan et al. (2017) [25] | 56 | 60 and above |
| 10 weeks | Total learning and recognition performances significantly improved for both groups. The DMBI group showed significant improvement in immediate recall and delayed recall when visual memory was considered. Furthermore, the CMI group showed significant improvement in delayed recall. Subjective feelings of the subjects as per their physical and psychological health also improved significantly in the DMBI group, unlike the CMI group. | |
Pereira-Morales et al. (2017) [63] | Randomized controlled trial | 40 | 66.4 (±5.6) |
| 8 weeks | Subjective memory complaints declined significantly for the IPP group. Furthermore, significant improvements were observed for the IPP group regarding short-term memory, long-term memory, processing speed, and phonological verbal fluency. Symptoms of anxiety also declined significantly for the IPP group. The CCT alone group, however, showed significant improvement in cognition and short-term memory. |
Hong et al. (2020) [60] | Prospective controlled trial | 56 | 55–75 |
| 12 weeks | There were no significant improvements recorded when the cognitive function—as reflected by the CANTAB scores—was measured across the two groups. However, functions, such as phonemic total, memory delayed recall, and quality of life, were significantly improved for the group that had cognitive intervention, along with exercises and lifestyle modifications. Furthermore, anxiety and depression were observed to be significantly reduced for the same group. |
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Mohanty, M.; Kumar, P. Multi-Component Interventions in Older Adults Having Subjective Cognitive Decline (SCD)—A Review Article. Geriatrics 2023, 8, 4. https://doi.org/10.3390/geriatrics8010004
Mohanty M, Kumar P. Multi-Component Interventions in Older Adults Having Subjective Cognitive Decline (SCD)—A Review Article. Geriatrics. 2023; 8(1):4. https://doi.org/10.3390/geriatrics8010004
Chicago/Turabian StyleMohanty, Madhuchhanda, and Prakash Kumar. 2023. "Multi-Component Interventions in Older Adults Having Subjective Cognitive Decline (SCD)—A Review Article" Geriatrics 8, no. 1: 4. https://doi.org/10.3390/geriatrics8010004
APA StyleMohanty, M., & Kumar, P. (2023). Multi-Component Interventions in Older Adults Having Subjective Cognitive Decline (SCD)—A Review Article. Geriatrics, 8(1), 4. https://doi.org/10.3390/geriatrics8010004