Plasma 25-Hydroxyvitamin D Concentrations Are Inversely Associated with All-Cause Mortality among a Prospective Cohort of Chinese Adults Aged ≥80 Years.
J Nutr. 2019 Apr 5. pii: nxz041. doi: 10.1093/jn/nxz041.
Mao C1, Li FR1, Yin ZX2, Lv YB3, Luo JS4, Yuan JQ1, Mhungu F1, Wang JN3, Shi WY3, Zhou JH3, Chen GC5, Gao X6, Kraus VB7, Wu XB1, Shi XM3.
Mortality starts with:
The Meta-analysis of Mortality and Vitamin D are listed here:
- People supplemented with Vitamin D had 13 percent fewer Cancer deaths – Meta-analysis of RCT June 2019
- Cancer with low Vitamin D increases Mortality by 13 percent – meta-analysis Feb 2019
- Decreased Vitamin D is associated with dying sooner (70 studies) – meta-analysis Jan 2019
- Prostate Cancer death 40 percent less likely if 40 ng level of vitamin D – Meta-analysis Oct 2018
- Review of meta-analyses of non-skeletal benefits of vitamin D (Mortality, RTI, etc) – July 2017
- Chronic Kidney Disease mortality is 60 percent less likely if good vitamin D – meta-analysis July 2017
- Lung Cancer death 60 percent less likely if high level of vitamin D – 2 meta-analysis 2017
- Breast Cancer Mortality reduced 60 percent if more than 60 ng of Vitamin D – meta-analysis June 2017
- Cardiovascular deaths 12 percent less likely if have 10 ng more vitamin D – meta-analysis March 2017
- ICU patients 30 percent less likely to die if have enough vitamin D – meta-analysis Nov 2016
- Less likely to die if have enough vitamin D - Meta-analysis June 2014
- Cancer survival 4 percent more likely with just a little more vitamin D (4 ng) - meta-analysis July 2014
- Death due to breast cancer reduced 40 percent if high vitamin D – meta-analysis April 2014
- Vitamin D reduces risk of cause specific death, unless it is D2 – meta-analysis BMJ April 2014
- More survive Breast Cancer if more vitamin D – 2X fewer deaths with just 30 ng -meta-analysis March 2014
- Colorectal and Breast Cancer – Vitamin D is associated with fewer deaths – meta-analysis Feb 2014
- Death of women from cancer 24 percent less likely if 20 ng more vitamin D – meta-analysis Sept 2013
- Chance of dying increases by 25 percent in seniors if low vitamin D – Meta-analysis July 2013
- Breast Cancer survival 2X more likely if vitamin D sufficient – meta-analysis May 2013
- Vitamin D with Calcium reduces mortality by 7 percent – meta-analysis May 2012
- Death rate reduced 8 percent for 8 nanogram more vitamin D – meta-analysis Feb 2012
- 40 ng Vitamin D perhaps optimal for reduced mortality – Meta-analysis Jan 2012
- Vitamin D3 but not D2 reduces mortality – meta-analysis July 2011
- Vitamin D and mortality a meta-analysis of RCT - 2008
- You will live longer if you have a high level of vitamin D – March 2019
- Live longer if have more than 40 ng of Vitamin D (gene analysis of 10,500 people) – Jan 2019
- Top 10 causes of death - low vitamin D is associated with every cause - Nov 2018
- Chance of dying in hospital cut in half by just 10 ng higher level of Vitamin D – April 2016
BACKGROUND: High concentrations of plasma 25-hydroxyvitamin D [25(OH)D], a marker of circulating vitamin D, have been associated with a lower risk of mortality in epidemiologic studies of multiple populations, but the association for Chinese adults aged ≥80 y (oldest old) remains unclear.
OBJECTIVE: We investigated the association between plasma [25(OH)D] concentration and all-cause mortality among Chinese adults aged ≥80 y.
The present study is a prospective cohort study of 2185 Chinese older adults (median age: 93 y). Prospective all-cause mortality data were analyzed for survival in relation to plasma 25(OH)D using Cox proportional hazards regression models, with adjustments for potential sociodemographic and lifestyle confounders and biomarkers. The associations were measured with HR and 95% CIs.
The median plasma 25(OH)D concentration was 34.4 nmol/L at baseline. Over the 5466 person-year follow-up period, 1100 deaths were identified. Men and women were analyzed together as no effect modification by sex was found. After adjusting for multiple potential confounders, the risk of all-cause mortality decreased as the plasma 25(OH)D concentration increased (P-trend <0.01). Compared with the lowest age-specific quartile of plasma 25(OH)D, the adjusted HRs for mortality for the second, third, and fourth age-specific quartiles were 0.72 (95% CI: 0.57, 0.90), 0.73 (95% CI: 0.58, 0.93), and 0.61 (95% CI: 0.47, 0.81), respectively. The observed associations were broadly consistent across age and other subgroups. Sensitivity analyses generated similar results after excluding participants who died within 2 y of follow-up or after further adjustment for ethnicity and chronic diseases.
A higher plasma 25-hydroxyvitamin D concentration was associated with a reduced risk of all-cause mortality among Chinese adults aged ≥80 y. This observed inverse association warrants further investigation in randomized controlled trials testing vitamin D supplementation in this age group.