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Title: | The terrorist attacks and the human live birth sex ratio : a systematic review and meta-analysis |
Authors: | Masukume, Gwinyai O'Neill, Sinead M. Khashan, Ali S. Kenny, Louise C. Grech, Victor E. |
Keywords: | Sex ratio Childbirth -- Statistics Terrorism |
Issue Date: | 2017 |
Publisher: | Nakladatelstvi Karolinum |
Citation: | Masukume, G., O'Neill, S. M., Khashan, A. S., Kenny, L. C., & Grech, V. E. (2017). The terrorist attacks and the human live birth sex ratio: a systematic review and meta-analysis. Acta Medica, 60, 59-65. |
Abstract: | Aim: The live birth sex ratio is defined as male/total births (M/F). Terrorist attacks have been associated with a transient decline in M/F 3–5 months later with an excess of male losses in ongoing pregnancies. The early 21st century is replete with religious/politically instigated attacks. This study estimated the pooled effect size between exposure to attacks and M/F. Registration number CRD42016041220. Methods: PubMed and Scopus were searched for ecological studies that evaluated the relationship between terrorist attacks from 1/1/2000 to 16/6/2016 and M/F. An overall pooled odds ratio (OR) for the main outcome was generated using the generic inverse variance method. Results: Five studies were included: 2011 Norway attacks; 2012 Sandy Hook Elementary School shooting; 2001 September 11 attacks; 2004 Madrid and 2005 London bombings. OR at 0.97 95% CI (0.94–1.00) (I2 = 63%) showed a small statistically significant 3% decline in the odds (p = 0.03) of having a male live birth 3–5 months later. For lone wolf attacks there was a 10% reduction, OR 0.90 95% CI (0.86–0.95) (p = 0.0001). Conclusion: Terrorist (especially lone wolf) attacks were significantly associated with reduced odds of having a live male birth. Pregnancy loss remains an important Public Health challenge. Systematic reviews and meta-analyses considering other calamities are warranted. |
URI: | https://www.um.edu.mt/library/oar//handle/123456789/25699 |
Appears in Collections: | Scholarly Works - FacM&SPae |
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MF terror systematic metaanalysis.pdf Restricted Access | 923.92 kB | Adobe PDF | View/Open Request a copy |
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