The Effect of Breast Self‐examination on Early Detection and Survival

To investigate the effect of breast self‐examination (BSE), we compared the stages, survival, and the risk of death for 355 patients with breast cancer detected by BSE with those for 1,327 patients with breast cancer detected by chance. The early stages of the disease were found to be more common am...

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Published in:Cancer science 1992-04, Vol.83 (4), p.344-350
Main Authors: Kuroishi, Tetsuo, Tominaga, Suketami, Ota, Jun, Horino, Toshio, Taguchi, Tetsuo, Ishida, Tsunehiro, Yokoe, Takao, Izuo, Masaru, Ogita, Masami, Itoh, Sueyoshi, Abe, Rikiya, Yoshida, Koichi, Morimoto, Tadaoki, Enomoto, Kohji, Tashiro, Hideya, Kashiki, Yoshitomo, Yamamoto, Satoru, Kido, Choichiro, Honda, Kazuyoshi, Sasakawa, Michizou, Fukuda, Mamoru, Watanabe, Hiromu
Format: Article
Language:English
Subjects:
Biological and medical sciences
Breast cancer
Breast Neoplasms - diagnosis
Breast Neoplasms - mortality
Breast Neoplasms - pathology
Breast Neoplasms - prevention & control
Breast Self-Examination
Death
Female
Gynecology. Andrology. Obstetrics
Humans
Japan
Key words
Mammary gland diseases
Mass Screening
Medical Records
Medical sciences
Multivariate Analysis
Neoplasm Staging
Prognosis
Regression Analysis
Risk Factors
Statistical analysis
Survival
Survival analysis
Tumors
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cited_by cdi_FETCH-LOGICAL-c5334-f3fdfb53cb414a536cea9798a9aada067ec152d8ae60fbad484e5cb415ddcb8a3
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container_title Cancer science
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creator Kuroishi, Tetsuo
Tominaga, Suketami
Ota, Jun
Horino, Toshio
Taguchi, Tetsuo
Ishida, Tsunehiro
Yokoe, Takao
Izuo, Masaru
Ogita, Masami
Itoh, Sueyoshi
Abe, Rikiya
Yoshida, Koichi
Morimoto, Tadaoki
Enomoto, Kohji
Tashiro, Hideya
Kashiki, Yoshitomo
Yamamoto, Satoru
Kido, Choichiro
Honda, Kazuyoshi
Sasakawa, Michizou
Fukuda, Mamoru
Watanabe, Hiromu
description To investigate the effect of breast self‐examination (BSE), we compared the stages, survival, and the risk of death for 355 patients with breast cancer detected by BSE with those for 1,327 patients with breast cancer detected by chance. The early stages of the disease were found to be more common among the symptomatic breast cancer patients detected by BSE than those by chance. The 5‐year overall survival rate was 94.4% for the symptomatic patients detected by BSE, and was significantly higher by 8.7% than that (85.7%) for patients detected by chance (P< 0.001). The 10‐year survival rate was 81.6% for patients detected by BSE, and 76.6% for cases detected by chance (the difference was not significant). The overall difference between the two survival curves was statistically significant by the Iogrank test (P
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These results suggest that BSE may contribute to the reduction of the risk of death through early detection of breast cancer. However, further examination should be conducted by other methods to obtain conclusive evidence.</description><subject>Biological and medical sciences</subject><subject>Breast cancer</subject><subject>Breast Neoplasms - diagnosis</subject><subject>Breast Neoplasms - mortality</subject><subject>Breast Neoplasms - pathology</subject><subject>Breast Neoplasms - prevention &amp; control</subject><subject>Breast Self-Examination</subject><subject>Death</subject><subject>Female</subject><subject>Gynecology. Andrology. 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The early stages of the disease were found to be more common among the symptomatic breast cancer patients detected by BSE than those by chance. The 5‐year overall survival rate was 94.4% for the symptomatic patients detected by BSE, and was significantly higher by 8.7% than that (85.7%) for patients detected by chance (P&lt; 0.001). The 10‐year survival rate was 81.6% for patients detected by BSE, and 76.6% for cases detected by chance (the difference was not significant). The overall difference between the two survival curves was statistically significant by the Iogrank test (P&lt;0.01). A multivariate analysis using the Cox proportional hazards model showed that the risk of death for patients detected by BSE was smaller by 0.570 times than that for patients detected by chance, which was statistically significant (P&lt; 0.05). The effect of biases inherent to BSE in the survival analysis cannot be controlled completely even after conducting multivariate analysis. These results suggest that BSE may contribute to the reduction of the risk of death through early detection of breast cancer. However, further examination should be conducted by other methods to obtain conclusive evidence.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>1506268</pmid><doi>10.1111/j.1349-7006.1992.tb00113.x</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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subjects Biological and medical sciences
Breast cancer
Breast Neoplasms - diagnosis
Breast Neoplasms - mortality
Breast Neoplasms - pathology
Breast Neoplasms - prevention & control
Breast Self-Examination
Death
Female
Gynecology. Andrology. Obstetrics
Humans
Japan
Key words
Mammary gland diseases
Mass Screening
Medical Records
Medical sciences
Multivariate Analysis
Neoplasm Staging
Prognosis
Regression Analysis
Risk Factors
Statistical analysis
Survival
Survival analysis
Tumors
title The Effect of Breast Self‐examination on Early Detection and Survival
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