People native to South Asia are at greater risk of heart attack at a younger age than other people because of factors that include lifestyle choices such as smoking, a study published in the US journal JAMA said Tuesday.
India, Pakistan, Bangladesh, Sri Lanka and Nepal account for about a quarter of the world's population and have the highest proportion of cardiovascular diseases compared with any other region globally.
Deaths related to cardiovascular diseases occur between five and 10 years earlier in these South Asian countries than in Western countries.
PHOTO: EPA
The researchers found that the average age for a first heart attack was lower in South Asian countries, at 53.0 years, than in other countries, at 58.8 years. Protective risk factors, such as leisure time, physical activity, regular alcohol intake, and daily intake of fruits and vegetables, were markedly lower in South Asian study participants compared with those from other countries.
Some harmful factors were more common in native South Asians than in individuals from other countries: a history of diabetes, current and former smoking, history of hypertension, psychosocial factors such as depression and stress at work or home, and an elevated ratio of ApoB/ApoA-I ratio, a protein/lipid.
When looked at by age, South Asians had more risk factors at ages younger than 60 years.
"The younger age of first heart attack among the South Asian cases in our study appears to be largely explained by the higher prevalence of risk factors in native South Asians," the authors write.
"These data suggest that lifestyle changes implemented early in life have the potential to substantially reduce the risk of heart attack in South Asians."(AFP)
「美國醫學會刊」週二發表一份調查報告指出，南亞年輕族群因抽煙等生
活型態因素，心臟病發生率較其他族群高。
相較於全球其他區域，印度、巴基斯坦、孟加拉、斯里蘭卡和尼泊爾約佔全球四分之一人口，罹患心血管疾病的比例最高。
南亞國家心血管疾病致死的年齡層比西方國家早五到十年。
研究人員發現南亞國家心臟病首發年齡
五十三歲，低於其他國家的五十八點八歲
。南亞受測者的危險防護因子，諸如閒暇時間、運動、飲用酒品習慣以及每日攝取蔬果，也明顯較其他國家受測者少。
南亞裔人士身上常見的有害因子也較其他國家多︰糖尿病史、現在或曾經有抽煙習慣、高血壓病史、社會心理因素，如工作或家庭帶來的憂鬱和壓力，以及高居不下的ApoB/ApoA-I比（一種蛋白質╱脂肪比例）。
從年齡層來看，南亞六十歲以下的人口有較多危險因子。
作者寫道︰「我們的研究中，南亞人的危險因子普遍較多，似乎足以解釋為何南亞人心臟病首發年齡層較低。」
他說︰「這些資料顯示，年輕時改變生活型態，或許能有效降低南亞人的心臟病危機。」（法新社╱翻譯︰鄭湘儀）
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