Seasonal trends in the self-detection of breast cancer: indications from the Cancer and Steroid Hormone (CASH) study.
Of 2895 women who self-detected an incident breast cancer that required surgery, peaks in month of detection occurred in spring and late autumn (p = 0.012). For the subset of cases for whom receptor status was available, there was a highly significant seasonal variation in detection only for those with ER-negative tumors. Further investigations into seasonality and breast cancer detection may be warranted.
Ross
J A
JA
Department of Pediatrics, University of Minnesota, Minneapolis 55455, USA.
Severson
R K
RK
Davis
S
S
Stanford
J L
JL
Potter
J D
JD
D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000517:prevention & control; D016504:Breast Self-Examination; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D011960:Receptors, Estrogen / Q000032:analysis; D012621:Seasons
D011960:Receptors, Estrogen