Epidemiology of Thalassemia in Gulf Cooperation Council Countries: A Systematic Review

Amani Abu-Shaheen 1, Humariya Heena 1, Abdullah Nofal 2, Doaa A Abdelmoety 3, Abdulrahman Almatary 4, Mohammed Alsheef 5, Isamme AlFayyad 1

Affiliations

doi: 10.1155/2020/1509501

Abstract

Background: Thalassemia has a burden on the healthcare systems of many countries. About 56000 conceptions result in thalassemia, globally.

Objective: To assess the epidemiological profile of thalassemia in the Gulf Cooperation Council (GCC) countries.

Methods: A systematic search was conducted in MEDLINE/PubMed (National Library of Medicine), CINAHL, and Embase. Relevant observational studies reporting the epidemiology of thalassemia among the GCC population were selected. Data on the prevalence, frequency, and complications of thalassemia were extracted. The quality of the retrieved studies was assessed according to the Newcastle-Ottawa Quality Assessment Scale.

Results: Eighteen studies (14 cross-sectional studies, two retrospective observational studies, and two retrospective analysis) with a total of 3343042 participants were included in this systematic review. Of the 18 studies, 11 studies were conducted in Saudi Arabia, two in the Kingdom of Bahrain, one in Kuwait, three in the United Arab Emirates (UAE), and one in Qatar. The prevalence of thalassemia among children below five years of age ranged from 0.25% to 33%, while it was 0.9% in children above five years and from 0.035% to 43.3% among adult thalassemia patients. The most-reported risk factors were consanguineous marriage and high-risk marriage. There was a lack of data regarding mortality rates in thalassemia.

Conclusions: Despite the premarital screening and genetic counseling (PMSGC) program for thalassemia, the incidence of high-risk couple marriages in GCC countries cannot be effectively diminished. This study suggested that the PMSGC program should adopt more attention for the high-risk areas, to enhance the level of consciousness about the hemoglobinopathy diseases and the consequences of consanguinity among the at-risk couple.

Figures

Figure 1 Flow diagram of the literature search and study selection.

Figure 1 Flow diagram of the literature search and study selection.

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