Vitamin D Status and the Risk of Recurrent Stroke and Mortality in Ischemic Stroke Patients: Data from a 24-Month Follow-Up Study in China.
J Nutr Health Aging. 2017;21(7):766-771. doi: 10.1007/s12603-016-0821-z.
Qiu H1, Wang M, Mi D, Zhao J, Tu W, Liu Q.
Jizong Zhao, No.6, Tiantanxili, Dongcheng District, Beijing 100050, P. R. China, Tel: 86-13701095698, zhaojz205 at 163.com.
18.5% had a stroke recurrence, 30.1% died.
|Least Vit D||2nd||3rd||most Vit D|
|Risk of Stroke recurrence||1.0||0.80||0.42||0.12|
|Risk of Death||1.0||0.77||0.39||0.10|
- First Stroke 74% less likely if high vitamin D (7,295 women 20-50 years old) – July 2017
- Vascular dementia (after strokes) 32X more likely in Hypertensives with low vitamin D – Oct 2015
- Stroke rate increased 85 percent in young women in large cities in the Western US in a decade – June 2017
- Retinal venous occlusions (eye stroke) 133 X more likely if low vitamin D – April 2017
- Better outcome following Ischemic stroke if injected with 600,000 IU of vitamin D – RCT Feb 2017
- Stroke rates increasing in youth and decreasing in elderly (perhaps due to Vitamin D) – Nov 2016
- Second stroke 2X more likely if low vitamin D – Feb 2015
- Much higher death rate 10 years after TIA – Nov 2011 – vitamin D might help
In this study, we determined serum 25-hydroxyvitamin D [25(OH) D] levels in serum, and investigated their associations with risk of recurrent stroke and mortality in a 24-month follow up study in Chinese patients with first-ever ischemic stroke.
In this preplanned post hoc analysis, serum levels of 25(OH) D and NIH stroke scale (NIHSS) were measured at the time of admission in a cohort of patients with ischemic stroke. We used logistic regression model to assess the relationship between 25(OH) D levels and risk recurrent stroke or mortality.
The follow-up rate was 98.2% in 220 stroke patients. Of 216 patients, 18.5% (95%CI: 13.3%-23.7%) patients had a stroke recurrence, and 30.1% (95% CI: 24.0%-36.2%) died. After adjustment for traditional risk factors, serum 25(OH) D levels were negatively associated with the risk of stroke recurrence (odds ratio [OR], 0.77; 95% confidence interval [CI], 0.70-0.85; P < 0.001) and negatively associated with mortality during 24 months of follow-up (OR, 0.72; 95% CI, 0.64-0.80; P< 0.001). Compared with the first quartile of serum 25(OH) D levels, the ORs for stroke recurrence and mortality were as follows: second quartile, 0.80 (95% CI, 0.63-0.93) and 0.77 (95% CI, 0.65-0.89); third quartile, 0.42 (95% CI, 0.31-0.55) and 0.39 (95% CI, 0.30-0.52); fourth quartile, 0.12 (95% CI, 0.07-0.19) and 0.10 (95% CI, 0.06-0.15), respectively.
Lower serum levels of 25(OH) D are independently associated with the stroke recurrence and mortality at 24 months in ischemic stroke patients.
PMID: 28717806 DOI: 10.1007/s12603-016-0821-z