论文部分内容阅读
第二次世界大战末,男性吸烟人数达最高峰。当时,几乎有2/3的男性吸烟。在女性中,这一高峰的出现较男性约晚20年,此时,约有50%的女性吸烟。此后,各性别和年龄的人群中,吸烟者都有减少,但女性吸烟者的减少幅度不如男性。近年,年轻女性吸烟者减少很少甚至
At the end of World War II, men smoked at a peak. At that time, almost two-thirds of men smoked. Among women, the peak appears about 20 years later than men, when about 50% of women smoke. Since then, there has been a decline in smokers among all genders and ages, but female smokers have been reduced less than men. In recent years there has been little or no reduction in young female smokers