妻吸って　夫がとどめの　脳卒中　　　　禁煙川柳（７）へ

夫婦ともに喫煙者であれば女性の脳卒中リスクが増大

「Stroke」2005年8月5日号

女性喫煙者の配偶者も喫煙者である場合には、その女性は配偶者が非喫煙者である女性と比べて、脳卒中のリスクがほぼ6倍であることが、米ニュージャージー医科歯科大学Zeenat Qureshi脳卒中研究センターのAdnan I. Qureshi博士らによる新たな研究で明らかにされた。医学誌「Stroke」8月5日号に掲載された。

　受動喫煙への曝露が、心疾患の発症率を増大させる恐れがある証拠は得られている。今回、Qureshi博士らは脳卒中に関して検討し、女性5,379例のデータを解析した。このうち、現在または過去に喫煙歴がある女性は2,347例、配偶者も喫煙者であるケースが1,904例であった。

　その結果、夫婦ともに喫煙者である女性では脳卒中全体の発症リスクが5.7倍であり、脳への血流を遮断する血液凝固を引き起こす虚血性脳卒中のリスクは4.8倍であった。また、配偶者が喫煙者である非喫煙者女性と夫婦ともに非喫煙者の女性との間に、脳卒中のリスクに有意差は認められなかった。ただし、配偶者が非喫煙者の妻に煙を吸わせないよう何らかの対策を講じていた可能性があったという。

　Qureshi博士は「医師が患者の脳卒中発症リスクの軽減に対して、現実的に影響を及ぼすために、患者自身のみならず配偶者の喫煙習慣にも対処する必要がある」という。
Women Smokers Married to Smokers at Higher Stroke Risk
It's a six-fold greater risk than for women smokers with nonsmoking spouses, study says

THURSDAY, Aug. 4 (HealthDay News) -- Women smokers whose spouses also smoke have a nearly six times greater risk of stroke than women smokers with nonsmoking spouses, a new report reveals.

"There is evidence suggesting that your exposure to secondhand smoke can increase your chances of getting heart disease. We asked if that was also true for stroke," study lead author Dr. Adnan I. Qureshi, professor and director of the cerebrovascular program in the Zeenat Qureshi Stroke Research Center, at the University of Medicine and Dentistry of New Jersey, said in a prepared statement.

He and his colleagues analyzed data from 5,379 women. Of these, 2,347 were current or former smokers and 1,904 of those were married to smokers.

"We found that cigarette-smoking women with cigarette-smoking spouses had almost a six times higher relative risk of total stroke than cigarette-smoking women with nonsmoking spouses," Qureshi said.

Women smokers with smoking spouses had 5.7 times higher total stroke risk and 4.8 times greater risk for ischemic stroke -- caused by a blood clot that blocks blood flow to the brain.

The study found that nonsmoking women with smoking spouses didn't have a significantly higher incidence of stroke compared to nonsmoking women with nonsmoking spouses. However, smoking spouses may take steps to avoid exposing their nonsmoking partners to smoke, Qureshi said.

"If physicians are to make a real impact on reducing stroke risk among their patients, they should not only address their patients' smoking habits but also those of their spouses or partners," Qureshi said.

The study appears in the Aug. 5 issue of the journal Stroke.