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. 2018 May 8;18(1):540.
doi: 10.1186/s12885-018-4411-9.

Cancer incidence in Yemen from 1997 to 2011: a report from the Aden cancer registry

Amen Ahmed Bawazir  1   2
Affiliations

Cancer incidence in Yemen from 1997 to 2011: a report from the Aden cancer registry

Amen Ahmed Bawazir. BMC Cancer. .

Abstract

Background: This study aims to report on the trend and incidence of cancers in Yemen (Aden) using data from Aden Cancer Registry (ACR), as a population-based cancer registry in Yemen over a period of 15 years (1997-2011). Such comprehensive, valid and detailed information on cancer trend is badly needed for planning a cancer control program in the country.

Methods: All cancer cases were abstracted from patients' medical records - based on clinical, histopathology, and radiological diagnosis. Data were coded using the International Classification of Diseases for Oncology (ICD-O) and the International Classification of Childhood Cancer (ICCC-3) to code childhood tumors. The CanReg4 program was used to analyze the data for 15 years study period.

Results: A total of 6974 cases were included in this study, 47% were males and 53% females. The overall annual incidence rate was 21.6/100,000 populations; however, the incidence in males was little lower than in females (20.0 and 22.9 per 100,000 populations, respectively). The top five cancers among males were leukaemia (10.5%), nonhodgkin lymphoma [(NHL), 10.1%], colon (7.5%), Hodgkin diseases [(HD), 6.1%] and stomach cancer (5.1%). For females, breast cancer was the top (30.0%), followed by leukaemia (7.6%), NHL (6.6%), colonic (4.9%) and ovarian cancer (4.5%).

Conclusion: Our findings reveal that, there is urgent need to commence the early screening of breast cancer due to its high frequency among Yemeni women. The government should give more support for cancer registries in the country to sustain its vital contribution to cancer care.

Keywords: Aden; Cancer; Incidence; Registry; Yemen.

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Conflict of interest statement

Author information

Amen A. Bawazir: corresponding author. MBBS, MD Epid, PhD. Associate Professor, College of Medicine and Health Sciences. Aden University, Yemen. Community and environmental Health, College of Public Health & Health Informatics. KSAU-HS. Email: bawazir56@hotmail.com Telephone: + 966,114,295,422.

Ethics approval and consent to participate

This study was conducted after approval of the Cancer Research Center in Aden. The Cancer Research Center in Aden City as an academic unit in the College of Medicine, University of Aden acted as a formal ethics committee in in approving this study (CRD-13/#05). No informed consent needed for this type of study with no extra burden for participants and anonymized data.

Competing interests

The author declare that he has no competing interests.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
Map of the covered area of the registry (Aden, Lahej, Abyan, and Al-Dhale Provinces). Source: Ministry of Planning and International Cooperation, Yemen)
Fig. 2
Fig. 2
Estimated Midpoint (1997–2011) Population pyramid, Aden Cancer Registry Covering areas, Yemen. 1997–2011
Fig. 3
Fig. 3
Age standardised incidence rates of cancer through the period of 15 years, ACR
Fig. 4
Fig. 4
Percentage change of Age-standardised cancer incidence rate through 5 years intervals, ACR
Fig. 5
Fig. 5
Age-standardised incidence rates rate of cancer among males and females in ACR
Fig. 6
Fig. 6
The most common five cancer types by gender and age category from the ACR (1997–2011)
Fig. 7
Fig. 7
Age-standardised incidence rates rate of lymphomas in males and females over 15 years period in ACR
Fig. 8
Fig. 8
Comparison of ASR per 100,000 inhabitants of the top cancer in males and females for Aden Cancer Registry and selected countries
See this image and copyright information in PMC

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