© The Author (2008). Published by Oxford University Press. All rights reserved
Comparison of Time Trends in Noses, Middle Ear, Sinuses Cancer Incidence (1973–1997) in East Asia, Europe and USA, from Cancer Incidence in Five Continents Vols IV–VIII
Cancer Information Services and Surveillance Division
Center for Cancer Control and Information Services
National Cancer Center
Tokyo, Japan
Cancer Screening Research Division
Center for Cancer Prevention and Screening
National Cancer Center
Tokyo, Japan
We compared time trends of age-standardized rate (ASR) of noses, middle ear and sinuses cancer incidence (ICD-10: C30-31) across 18 cancer registries in East Asia, Europe, and the United States. We used cancer incidence data published in the Cancer Incidence in Five Continents Vols IV–VIII (years at diagnosis: 1973–77, 78–82, 83–87, 88–92 and 93–97, respectively) and the world population for age standardization.
Figure 1 shows time trends of the ASR of noses, middle ear, sinuses cancer incidence for males. In East Asia, the ASR decreased continuously with relatively steeper slope in the two regions of China (Shanghai and Hong Kong) and mild slope in the three regions of Japan (Miyagi, Nagasaki and Osaka). As a result, the ASR of Miyagi became the highest from 1978 to 1982 among populations compared in East Asia. In Europe, the ASRs were generally lower than those in East Asia. Throughout the observed period, the ASRs of Bas-Rhin (France) were highest, while the ASRs of Sweden and the two regions of England (South Thames and West Midlands) were the lowest in the Europe region. In the United States, the ASRs of whites [Surveillance, Epidemiology and End Results (SEER)] did not change much. The trend of blacks (SEER) went down in the periods of 1978–82, and up in the periods of 1988–92. From the periods of 1983–87, we observe decreasing trend in Japanese Americans and increasing trend in Chinese Americans in both Hawaii and Los Angeles.
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Figure 2 shows the ASR trends for females in the same period. Since the ASRs for female were generally lower than those male, the scale of y-axis of Figure 2 is different from that of Figure 1. In East Asia, except Nagasaki, Japan, the ASR continuously decreased throughout the periods from 1973–77 to 1993–97. From the period of 1988–92, we observed decreasing trends in the three region of Japan. In Europe, the ASRs were generally lower than East Asia. In Sweden, the ASR was mostly stable. The ASR of Denmark was the highest since 1978–82. It showed parallel trends with Varese Province (Italy) and West Midlands (England). The ASR in Bas-Rhin (France) went up in the first half of the year 1973–87 and came down in 1983–87. In the United States, the ASRs of whites (SEER) were stable, the ASRs of black decrease from periods of 1978–82 to 1988–92, and then went down recently. Korean Americans had a prominent peak in 1978–82, but decreased rapidly afterwards.
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