Archives of Iranian medicine · 2022
Trends in the Incidence Rates of Breast and Gynecological Cancers in Asia from 1998-2012: An Ecological Study.
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Eslahi Marzieh, Roshandel Gholamreza, Torkian Samaneh
Аннотация
BACKGROUND: There is limited evidence on the epidemiology and time trend analysis of incidence rates of gynecological cancer in Asia as a whole. We conducted this study to demonstrate breast and gynecological cancers incidence and trends in selected Asian populations.
METHODS: We conducted this ecological study using cancer and population data from cancer incidence in five continents (CI5). We extracted the data of breast, uterine, cervix and ovary cancers in selected Asian populations from 1998 to 2012 from CI5plus. We used Joinpoint regression model (version 4.8.0.1) to evaluate the annual percentage change (APC), which characterizes trends in cancer rates over time, and the average annual percent changes (AAPCs), which describes the average APCs over a period of multiple years. Results were considered statistically significant at P < 0.05.
RESULTS: Between breast and gynecological cancers, breast cancer has the highest incidence rates among women in Asia. The time trend of the incidence rates showed a constant growth in breast, ovary and corpus uteri cancers. This rising trend was obviously sharper for uterine cancer (AAPC 95% CI = 3.4 [3.0, 3.7]) followed by breast [AAPC 95% CI = 2.1 (2.0, 2.2)] and ovarian cancers (AAPC 95% CI = 0.5 [-0.4, 1.3]). The age-adjusted incidence rate (ASR) of cervical cancer displayed a declining trend from 1998 to 2012 (AAPC 95% CI = -1.4 [-2.4, -0.5]).
CONCLUSION: Incidence rates of breast and gynecological cancers have a rising trend in Asian countries. However, breast and gynecological cancers have different patterns of time trend.
METHODS: We conducted this ecological study using cancer and population data from cancer incidence in five continents (CI5). We extracted the data of breast, uterine, cervix and ovary cancers in selected Asian populations from 1998 to 2012 from CI5plus. We used Joinpoint regression model (version 4.8.0.1) to evaluate the annual percentage change (APC), which characterizes trends in cancer rates over time, and the average annual percent changes (AAPCs), which describes the average APCs over a period of multiple years. Results were considered statistically significant at P < 0.05.
RESULTS: Between breast and gynecological cancers, breast cancer has the highest incidence rates among women in Asia. The time trend of the incidence rates showed a constant growth in breast, ovary and corpus uteri cancers. This rising trend was obviously sharper for uterine cancer (AAPC 95% CI = 3.4 [3.0, 3.7]) followed by breast [AAPC 95% CI = 2.1 (2.0, 2.2)] and ovarian cancers (AAPC 95% CI = 0.5 [-0.4, 1.3]). The age-adjusted incidence rate (ASR) of cervical cancer displayed a declining trend from 1998 to 2012 (AAPC 95% CI = -1.4 [-2.4, -0.5]).
CONCLUSION: Incidence rates of breast and gynecological cancers have a rising trend in Asian countries. However, breast and gynecological cancers have different patterns of time trend.