Alcohol ‘riskier’ for South Asians than Europeans
[BANGALORE] Alcohol consumption results in more cases of stroke in Asia than in Western Europe and North America, according to a new study on risk factors for a medical event, described as a ‘brain attack’ following the blockage of a blood vessel (ischaemic) or leakage from it (haemorrhagic).
The 32-country study — the results of which were published in the Lancetlast month (July) — looked at regional variations for ten modifiable riskfactors for stroke. It recommends that country-specific and region-specificpolicies should be worked out to prevent stroke and haemorrhage.
Martin O’ Donnell, lead author of the study and researcher at Population Health Research Institute, McMaster University, Ontario, Canada, tellsSciDev. Net that while the prevalence of alcohol consumption was higher in Western Europe and North America, the odds ratio (measure of increased risk) was lower than in South Asia and other regions.
Another variation was that diet in South Asia appeared to have a different association with stroke compared to Western Europe and North America. “We used a diet risk score (the modified alternative healthy eating index). In Europe and North America, the higher the score, the lower the risk of stroke, but in South Asia, we found the opposite,” O’ Donnell said.
The ten risk factors studied included hypertension, smoking, diabetes mellitus, physical activity, diet, psychosocial factors, abdominal obesity, alcohol, cardiac causes, and apolipoproteins. All the risk factors were associated with ischemic stroke, seven were closely associated with haem- orrhagic stroke.
“Of the risk factors we studied, hypertension was a stronger risk factor for intracerebral haemorrhage than ischemic stroke, which means that interventions to prevent and treat hypertension are expected to have a greater effect on haemorrhagic stroke than ischemic stroke, but will result in reductions in both stroke types,” O’ Donnell said.
The findings can support developing both global and region-specific programmes to prevent stroke, according to researchers and others working on stroke, a leading cause of death and disability, especially in low-income and middle-income countries.
Courtesy scidev.net