1 gram kalium per dag verlaagt beroerte met 11%

Research Question:
The intake of potassium is inconsistently associated with the reduced risk of getting a stroke. It was therefore carried out this review article.

The consumption of potassium lowers the chances of getting a stroke?

Study Design:
This overview article contained 10 prospective cohort studies from 1987 to March 2011 with 268276 participants, of which 8695 people with stroke.

Results and conclusions:
The researchers found that every increase of 1 g of potassium per day the chance of getting a stroke significantly with 11% [95% CI = 0.83-0.97, with a slight heterogeneity between the studies, p = 0.03, I2 = 50.8%] reduced.
Significant is, there can be said with 95% reliability that each increase of 1 g of potassium per day the chance of getting a stroke reduced by 11%.

In the subgroup-analyses (to get additional information) with 5 studies the researchers found that potassium intake the chance of getting an ischemic stroke significantly with 11% [95% CI = 0.81-0.97] reduced.

In the subgroup analyses with 5 studies the researchers found that potassium intake the likelihood of getting a intracerebral hemorrhage with non-significant 5% [95% CI = 0.83-1.09] reduced.
Non-significant is, there cannot be said with 95% reliability that potassium intake the likelihood of getting a intracerebral hemorrhage with 5% reduced. Non-significant is, there is no link.

In the subgroup analyses with 5 studies the researchers found that potassium intake the likelihood of getting a subarachnoid hemorrhage non-significant with 8% [95% CI = 0.92-1.27] increased. Non-significant is, there is a trend but no connection at a 95% reliability.

The researchers concluded that eating potassium (1 gram per day or more) the chance of getting a stroke, in particular an ischemic stroke reduced.

Original title:
Dietary Potassium Intake and Risk of Stroke: A Meta-Analysis of Prospective Studies Dose – Response by Larsson SC, Orsini N and Cloud A.

Link:
http://stroke.ahajournals.org/content/42/10/2746.full

Additional information about El Mondo:
Read more about potassium.  

Strokes are a heterogeneous group of disorders, associated with a sudden, local break of the cerebral blood flow, which causes a neurological deficit.
Can ischemic strokes are (80%), which is usually the result of thrombosis or capable of suppressing, or haemorrhagic (20%), which is the result of a vascular rupture (e.g., subarachnoid or intracerebral hemorrhage).
A stroke with symptoms, who less than 24 hours, is a transient ischemic attack (TIA = transient ischemic attack) called.
A stroke with symptoms, which take more than 24 hours, is a cerebral vascular attack (CVA) called.