Record Details

Title Variation in breast cancer counts using SEER and IARC multiple primary coding rules
Author Hotes, JL
Secondary Authors Ellison LF, Howe HL, Friesen I, Kohler B
Publication Type (Help) article
Journal Cancer Causes Control
Month Mar
Year 2004
Pages 185-91
Volume 15
Number 2
Publisher
Address
Note
URL
PubMed ID 15017131
NCI Id
EPub Date
Citation Hotes JL, Ellison LF, Howe HL, Friesen I, Kohler B. Variation in breast cancer counts using SEER and IARC multiple primary coding rules. Cancer Causes Control. 2004 Mar;15(2):185-91. PMID 15017131.
  BibTex    


Abstract

The purpose of this study was to determine breast cancer case counts, on a given data set, using both Surveillance, Epidemiology, and End Results (SEER) Program and International Agency for Research on Cancer (IARC)multiple primary coding rules and to describe differences, if any, by age at diagnosis, histology, stage at diagnosis, laterality, and grade. SEER and IARC multiple primary coding rules were applied to a data set provided by NAACCR. Only registries whose data met high quality data standards for the time period studied (1994-1998) and whose permission was obtained were included. Percentage differences were calculated using IARC counts as the base. Using IARC multiple primary rules resulted in 2.4% fewer cases. Among females, the highest percent changes by category were: age group – 80-84 year-olds (3.4%); histology – inflammatory breast cancer (4.6%); stage – distant (3.1%); grade – well differentiated (3.0%). Among males, the highest percent changes by category were: age group – 80-84 year-olds (1.7%); histology – for intraductal and lobular breast carcinoma in combination (4.8%); stage – distant (3.0%); grade – well differentiated (1.8%). Overall differences were generally unaffected when examined by laterality. Breast cancer case counts are dependent on the multiple primary coding rules used.



Keywords

Keyword
breast
coding
iarc
multiple primary
seer
variation