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Estimating the incidence of breast cancer in Africa: a systematic review and meta-analysis.

Abstract Breast cancer is estimated to be the most common cancer worldwide. We sought to assemble publicly available data from Africa to provide estimates of the incidence of breast cancer on the continent.
PMID
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Authors

Mayor MeshTerms
Keywords
Journal Title journal of global health
Publication Year Start




PMID- 29740502
OWN - NLM
STAT- MEDLINE
DCOM- 20180510
LR  - 20180511
IS  - 2047-2986 (Electronic)
IS  - 2047-2978 (Linking)
VI  - 8
IP  - 1
DP  - 2018 Jun
TI  - Estimating the incidence of breast cancer in Africa: a systematic review and
      meta-analysis.
PG  - 010419
LID - 10.7189/jogh.08.010419 [doi]
AB  - Background: Breast cancer is estimated to be the most common cancer worldwide. We
      sought to assemble publicly available data from Africa to provide estimates of
      the incidence of breast cancer on the continent. Methods: A systematic search of 
      Medline, EMBASE, Global Health and African Journals Online (AJOL) was conducted. 
      We included population- or hospital-based registry studies on breast cancer
      conducted in Africa, and providing estimates of the crude incidence of breast
      cancer among women. A random effects meta-analysis was employed to determine the 
      pooled incidence of breast cancer across studies. Results: The literature search 
      returned 4648 records, with 41 studies conducted across 54 study sites in 22
      African countries selected. We observed important variations in reported cancer
      incidence between population- and hospital-based cancer registries. The overall
      pooled crude incidence of breast cancer from population-based registries was 24.5
      per 100 000 person years (95% confidence interval (CI) 20.1-28.9). The incidence 
      in North Africa was higher at 29.3 per 100 000 (95% CI 20.0-38.7) than
      Sub-Saharan Africa (SSA) at 22.4 per 100 000 (95% CI 17.2-28.0). In
      hospital-based registries, the overall pooled crude incidence rate was estimated 
      at 23.6 per 100 000 (95% CI 18.5-28.7). SSA and Northern Africa had relatively
      comparable rates at 24.0 per 100 000 (95% CI 17.5-30.4) and 23.2 per 100 000 (95%
      CI 6.6-39.7), respectively. Across both registries, incidence rates increased
      considerably between 2000 and 2015. Conclusions: The available evidence suggests 
      a growing incidence of breast cancer in Africa. The representativeness of these
      estimates is uncertain due to the paucity of data in several countries and
      calendar years, as well as inconsistency in data collation and quality across
      existing cancer registries.
FAU - Adeloye, Davies
AU  - Adeloye D
AD  - Nigerian Urban Reproductive Health Initiative, Abuja, Nigeria.
AD  - Johns Hopkins Centre for Communication Programs, Baltimore, Maryland, USA.
AD  - Centre for Global Health Research and the World Health Organization Collaborating
      Centre for Population Health Research and Training, Usher Institute, University
      of Edinburgh, Scontland, UK.
FAU - Sowunmi, Olaperi Y
AU  - Sowunmi OY
AD  - Computer and Information Sciences, Covenant University, Ota, Ogun State, Nigeria.
FAU - Jacobs, Wura
AU  - Jacobs W
AD  - Department of Health Science, California State University, Fullerton, California,
      USA.
FAU - David, Rotimi A
AU  - David RA
AD  - Department of Urology, Morriston Hospital, Abertawe Bro Morgannwg University
      Health Board, Swansea, UK.
FAU - Adeosun, Adeyemi A
AU  - Adeosun AA
AD  - Health Initiative Department, National Jewish Hospital, Denver, Colorado, USA.
FAU - Amuta, Ann O
AU  - Amuta AO
AD  - Department of Health Studies, Texas Woman's University, Denton, Texas, USA.
FAU - Misra, Sanjay
AU  - Misra S
AD  - Department of Computer Engineering, Atilim University, Turkey.
FAU - Gadanya, Muktar
AU  - Gadanya M
AD  - Department of Community Medicine, Aminu Kano Teaching Hospital, Bayero
      University, Kano, Nigeria.
FAU - Auta, Asa
AU  - Auta A
AD  - School of Pharmacy and Biomedical Sciences, University of Central Lancashire,
      Fylde Road, Preston, UK.
FAU - Harhay, Michael O
AU  - Harhay MO
AD  - Department of Biostatistics, Epidemiology and Informatics, Perelman School of
      Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
AD  - Palliative and Advanced Illness Research (PAIR) Center, Perelman School of
      Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
FAU - Chan, Kit Yee
AU  - Chan KY
AD  - Centre for Global Health Research and the World Health Organization Collaborating
      Centre for Population Health Research and Training, Usher Institute, University
      of Edinburgh, Scontland, UK.
LA  - eng
PT  - Journal Article
PT  - Meta-Analysis
PT  - Review
PL  - Scotland
TA  - J Glob Health
JT  - Journal of global health
JID - 101578780
SB  - IM
MH  - Africa/epidemiology
MH  - Breast Neoplasms/*epidemiology
MH  - Female
MH  - Humans
MH  - Incidence
MH  - Registries
PMC - PMC5903682
COIS- Conflict of interest: DA and KYC are members of the editorial board of the
      Journal of Global Health. Authors have completed the Unified Competing Interest
      form at www.icmje.org/coi_disclosure.pdf (available on request from the
      corresponding author). None of the participating authors has a conflicting
      financial or other interest related to the work detailed in this manuscript.
EDAT- 2018/05/10 06:00
MHDA- 2018/05/11 06:00
CRDT- 2018/05/10 06:00
PHST- 2018/05/10 06:00 [entrez]
PHST- 2018/05/10 06:00 [pubmed]
PHST- 2018/05/11 06:00 [medline]
AID - 10.7189/jogh.08.010419 [doi]
AID - jogh-08-010419 [pii]
PST - ppublish
SO  - J Glob Health. 2018 Jun;8(1):010419. doi: 10.7189/jogh.08.010419.