Marugame Tomomi, Yoshimi Itsuro, Kamo Ken-ichi, Imamura Yuka, Kaneko Satoshi, Mizuno Shoichi, Sobue Tomotaka
Statistics and Cancer Control Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo-ku, Tokyo 104-0045, Japan.
Jpn J Clin Oncol. 2005 Apr;35(4):177-80. doi: 10.1093/jjco/hyi054.
Trends in lung cancer mortality among young adults, which are important for projecting future trends, have not been explored previously in Japan.
Using data from the National Vital Statistics between 1958 and 2003, we compiled lung cancer mortality by sex and 5-year birth cohort among young adults aged 20-49.
Mortality among those aged 20-29 has consistently decreased regardless of sex. There were birth cohort effects in mortality from lung cancer, although these were less evident among women than among men. Both men and women born in the 1930s had lower mortality rates, while those born after 1940 had higher lung cancer mortality rates. Mortality rates appear to be declining for male birth cohorts born after 1950 and female birth cohorts after 1960, although these trends may not be stable due to the small number of deaths in these cohorts.
Lung cancer mortality trends appear to be decreasing among young adults. This might be associated with the lower mortality of birth cohorts after 1950 for men and the 1960s birth cohorts for women. Careful monitoring is needed to confirm continuation of these declining trends.
年轻成年人肺癌死亡率的趋势对于预测未来趋势很重要，此前在日本尚未进行过探讨。
利用1958年至2003年国家生命统计数据，我们编制了20至49岁年轻成年人按性别和5年出生队列划分的肺癌死亡率。
20至29岁人群的死亡率无论性别均持续下降。肺癌死亡率存在出生队列效应，尽管女性中的效应不如男性明显。20世纪30年代出生的男性和女性死亡率较低，而1940年以后出生的人肺癌死亡率较高。1950年以后出生的男性出生队列和1960年以后出生的女性出生队列的死亡率似乎在下降，尽管由于这些队列中的死亡人数较少，这些趋势可能不稳定。
年轻成年人中肺癌死亡率趋势似乎在下降。这可能与1950年以后出生队列的男性以及20世纪60年代出生队列的女性死亡率较低有关。需要进行仔细监测以确认这些下降趋势是否持续。
