Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/119861
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Type: Journal article
Title: Aboriginal women have a higher risk of cervical abnormalities at screening; South Australia, 1993-2016
Author: Li, M.
Roder, D.
Whop, L.
Diaz, A.
Baade, P.
Brotherton, J.
Canfell, K.
Cunningham, J.
Garvey, G.
Moore, S.
O'Connell, D.
Valery, P.
Condon, J.
Citation: Journal of medical screening, 2019; 26(2):104-112
Publisher: SAGE Publications
Issue Date: 2019
ISSN: 0969-1413
1475-5793
Statement of
Responsibility: 
Ming Li, David Roder, Lisa J Whop, Abbey Diaz, Peter D Baade, Julia ML Brotherton, Karen Canfell, Joan Cunningham, Gail Garvey, Suzanne P Moore, Dianne L O, Connell, Patricia C Valery and John R Condon
Abstract: OBJECTIVE:Cervical cancer mortality has halved in Australia since the national cervical screening program began in 1991, but elevated mortality rates persist for Aboriginal and Torres Strait Islander women (referred to as Aboriginal women in this report). We investigated differences by Aboriginal status in abnormality rates predicted by cervical cytology and confirmed by histological diagnoses among screened women. METHODS:Using record linkage between cervical screening registry and public hospital records in South Australia, we obtained Aboriginal status of women aged 20-69 for 1993-2016 (this was not recorded by the registry). Differences in cytological abnormalities were investigated by Aboriginal status, using relative risk ratios from mixed effect multinomial logistic regression modelling. Odds ratios were calculated for histological high grade results for Aboriginal compared with non-Aboriginal women. RESULTS:Of 1,676,141 linkable cytology tests, 5.8% were abnormal. Abnormal results were more common for women who were younger, never married, and living in a major city or socioeconomically disadvantaged area. After adjusting for these factors and numbers of screening episodes, the relative risk of a low grade cytological abnormality compared with a normal test was 14% (95% confidence interval 5-24%) higher, and the relative risk of a high grade cytological abnormality was 61% (95% confidence interval 44-79%) higher, for Aboriginal women. The adjusted odds ratio of a histological high grade was 76% (95% confidence interval 46-113%) higher. CONCLUSIONS:Ensuring that screen-detected abnormalities are followed up in a timely way by culturally acceptable services is important for reducing differences in cervical cancer rates between Aboriginal and non-Aboriginal women.
Keywords: Aboriginal; Cervical screening; South Australia
Rights: © The Author(s) 2018.
RMID: 0030103437
DOI: 10.1177/0969141318810719
Grant ID: http://purl.org/au-research/grants/nhmrc/1045591
http://purl.org/au-research/grants/nhmrc/1041111
http://purl.org/au-research/grants/nhmrc/1105399
http://purl.org/au-research/grants/nhmrc/1142085
http://purl.org/au-research/grants/nhmrc/1083090
http://purl.org/au-research/grants/nhmrc/1058244
http://purl.org/au-research/grants/nhmrc/1055587
http://purl.org/au-research/grants/nhmrc/1007994
Appears in Collections:Public Health publications

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