| Title |
Serum 25-hydroxyvitamin D predicts cognitive performance in adults
|
|---|---|
| Published in |
Neuropsychiatric Disease and Treatment, August 2015
|
| DOI | 10.2147/ndt.s87014 |
| Pubmed ID | |
| Authors |
Hala Darwish, Pia Zeinoun, Husam Ghusn, Brigitte Khoury, Hani Tamim, Samia J Khoury |
| Abstract |
Vitamin D is an endogenous hormone known to regulate calcium levels in the body and plays a role in cognitive performance. Studies have shown an association between vitamin D deficiency and cognitive impairment in older adults. Lebanon has a high 25-hydroxyvitamin D (25(OH)D) deficiency prevalence across all age groups. In this cross-sectional study, we explored the cognitive performance and serum 25(OH)D levels using an electrochemoluminescent immunoassay in 254 older (>60 years) as well as younger (30-60 years) adults. Subjects' characteristics, including age, years of education, wearing of veil, alcohol consumption, smoking, and physical exercise, were collected. Participants were screened for depression prior to cognitive screening using the Montreal Cognitive Assessment Arabic version. Visuospatial memory was tested using the Rey Complex Figure Test and Recognition Trial, and speed of processing was assessed using the Symbol Digit Modalities test. Pearson's correlation and stepwise linear regression analyses showed that a low vitamin D level was associated with greater risk of cognitive impairment in older as well as younger adults. These findings suggest that correction of vitamin D needs to be explored as an intervention to prevent cognitive impairment. Prospective longitudinal studies are needed to ascertain the effect of such interventions. |
X Demographics
The data shown below were collected from the profiles of 7 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 43% |
| Unknown | 4 | 57% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 4 | 57% |
| Practitioners (doctors, other healthcare professionals) | 2 | 29% |
| Scientists | 1 | 14% |
Mendeley readers
The data shown below were compiled from readership statistics for 98 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 1% |
| Portugal | 1 | 1% |
| Unknown | 96 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 18 | 18% |
| Student > Ph. D. Student | 12 | 12% |
| Student > Master | 10 | 10% |
| Other | 8 | 8% |
| Student > Doctoral Student | 6 | 6% |
| Other | 22 | 22% |
| Unknown | 22 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 22 | 22% |
| Medicine and Dentistry | 17 | 17% |
| Nursing and Health Professions | 6 | 6% |
| Biochemistry, Genetics and Molecular Biology | 5 | 5% |
| Unspecified | 5 | 5% |
| Other | 16 | 16% |
| Unknown | 27 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 5. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 October 2016.
All research outputs
#6,968,429
of 25,654,806 outputs
Outputs from Neuropsychiatric Disease and Treatment
#867
of 3,142 outputs
Outputs of similar age
#73,560
of 276,955 outputs
Outputs of similar age from Neuropsychiatric Disease and Treatment
#19
of 91 outputs
Altmetric has tracked 25,654,806 research outputs across all sources so far. This one has received more attention than most of these and is in the 72nd percentile.
So far Altmetric has tracked 3,142 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.4. This one has gotten more attention than average, scoring higher than 72% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 276,955 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 73% of its contemporaries.
We're also able to compare this research output to 91 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 79% of its contemporaries.