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Centenarians with good vitamin D were 1.5 X less likely to depressed – Aug 2018

The prevalence of depressive symptoms in Chinese longevous persons and its correlation with vitamin D status

BMC Geriatrics201818:198, https://doi.org/10.1186/s12877-018-0886-0
Yao Yao†, Shihui Fu†, Hao Zhang, Nan Li, Qiao Zhu, Fu Zhang, Fuxin Luan, Yali Zhao and Yao He †Contributed equally


Tiny subset of table in the PDF

Characteristics DepressionNo Depression P
Vitamin D deficiency (<20ng)48%36% < 0.001
BMI kg/m2,17.818.5 0.004
Current alcohol drinker8.6% 11.6% 0.096
ADL impairments72% 49% < 0.001
Outdoor activities > 1 h/d,53% 63.0% 0.001

1.5 X more likely to be depressed if < 20 ng of Vitamin D

Pages listed in BOTH the categories Depression and Seniors

10 reasons why seniors need more vitamin D has the following

  1. Senior skin produces 3X less Vitamin D for the same sun intensity
  2. Seniors have fewer vitamin D receptors as they age
  3. Seniors are indoors more than than when they were younger
    • not as agile, weaker muscles; frail, no longer enjoy hot temperatures
    • (if outside, stay in the shade), however, seniors might start outdoor activities like gardening, biking, etc.
  4. Seniors wear more clothing outdoors than when younger
    • Seniors also are told to fear skin cancer/wrinkles
  5. Seniors often take various drugs which reduce vitamin D
  6. Seniors often have one or more diseases which consume vitamin D
  7. Seniors generally put on weight at they age - and a heavier body requires more vitamin D
  8. Seniors often (40%) have fatty livers – which do not process vitamin D as well
  9. Reduced stomach acid ==>less Magnesium needed to utilize vitamin D
    (would not show up on vitamin D test)
  10. Seniors with poorly functioning kidneys do not process vitamin D as well
    (would not show up on vitamin D test) 2009 full text online  Also PDF 2009
  11. Vitamin D is not as bioavailable in senior digestive systems (Stomach acid or intestines?)

Additional supplements to reduce depression

 Download the PDF from VitaminDWiki

Hypovitaminosis D and depressive syndromes are common conditions in old adults. However, little is known about the relationship between vitamin D and depression in exceptional aged people. The objective of this study is to evaluate the relationship between vitamin D levels and depressive symptoms in Chinese longevous persons.

We used a dataset from a cross-sectional survey of a sample of Chinese longevous people with self-reported age 100 or older, including 175 men and 765 women, was conducted from June 2014 to December 2016 in Hainan Province, China. Data on demographics, lifestyle characteristics and health conditions were collected using a structured questionnaire. Anthropometrics and blood samples were obtained following the standard procedure. Depressive symptoms of the participants were assessed using a shortened version of the Geriatric Depression Scale (GDS-15). Serum vitamin D levels were measured using an automated radioimmunoassay.

The prevalence of longevous persons with depressive symptoms among the sample was 32.2% (95% confidence interval: 29.7–34.7%). Serum vitamin D levels were lower in participants with depressive symptoms than in those without (20.8 ± 8.7 vs. 23.7 ± 9.7, ng/mL).
Vitamin D deficiency was an independent risk factor for depression after controlling for the potential covariates (Odds ratio = 1.47, 95% Confidence interval = 1.08–2.00; p = 0.014). A negative relationship between serum vitamin D levels and depressive symptoms was also detected, and the relationship remained significant after adjusting for a wide range of other covariates. The multivariate adjusted odds ratio of depressive symptoms for the lowest versus highest quartiles of vitamin D levels was 1.73 (95% confidence interval: 1.10–2.72), and the adjusted odds ratio with a 5 ng/mL decrement of serum 25OHD levels was 1.10 (95% confidence interval: 1.01–1.19).

This study showed an inverse association between vitamin D levels and depressive symptoms among Chinese longevous persons. Depressive symptoms should be screened in longevous persons who had vitamin D deficiency. Further studies on vitamin D supplement and prevention along with treatment of depression are needed among very old population.

Created by admin. Last Modification: Saturday October 20, 2018 15:48:43 GMT-0000 by admin. (Version 10)

Attached files

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10438 Centenarians who ere less depressed had higher Vitamin D.pdf PDF 2018 admin 30 Aug, 2018 12:51 586.45 Kb 480
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