Epidemiology of isolated preaxial polydactyly type I: Data from the Polish Registry of Congenital Malformations (PRCM)

BMC Pediatrics

Anna Latos-Bielenska⁷  Ewa Szwalkiewicz-Warowicka²  Henryka Sawulicka-Oleszczuk³  Maria Borszewska-Kornacka¹  Janusz Limon⁴  Barbara Wieckowska⁶  Katarzyna Wisniewska⁵  Aleksander Jamsheer⁷  Anna Materna-Kiryluk⁷ 

[1] Department of Neonatology and Neonatal Intensive Care, Medical University of Warsaw, Warsaw, Poland;Regional Children’s Specialized Hospital, Olsztyn, Poland;Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, Lublin, Poland;Chair and Department of Biology and Genetics, Medical University of Gdansk, Gdansk, Poland;Department of Preventive Medicine, Poznan University of Medical Sciences, Poznan, Poland;Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poznan, Poland;Chair and Department of Medical Genetics, Poznan University of Medical Sciences, Poznan, Poland

关键词: Registry;    Preaxial polydactyly type I;    Polydactyly;   

Others  :  1145190
DOI  :  10.1186/1471-2431-13-26

 received in 2012-08-31, accepted in 2013-02-11,  发布年份 2013

【 摘 要 】

Background

Polydactyly represents a heterogeneous group of congenital hand and foot anomalies with variable clinical features and diverse etiology. Preaxial polydactyly type I (PPD1) is the most frequent form of preaxial polydactyly. The etiology of sporadic PPD1 remains largely unknown and the relative contribution of genetic and environmental factors is not clearly defined. The primary goals of this study are twofold: (1) to examine the epidemiology and clinical features of sporadic PPD1 in comparison to a healthy control group, and (2) to contrast the characteristics of sporadic PPD1 with familial forms of isolated polydactyly.

Methods

Among 2,530,349 live births registered in the Polish Registry of Congenital Malformations (PRCM), we identified 459 children with isolated sporadic PPD1 and 353 children with familial polydactyly, including 57 children with familial PPD1.

Results

In comparison with the matched group of 303 controls, sporadic PPD1 cases had significantly lower birth order (P = 0.01) and birthweight (P < 0.0001). Similarly, when compared to familial cases of polydactyly, lower birth order (P = 0.047) and lower birthweight (P < 0.0001) were characteristic of sporadic PPD1 cases. Moreover, our analyses suggested several additional risk factors for sporadic PPD1, including lower paternal education levels (P = 0.01), upper respiratory tract infections during the first trimester of pregnancy (P = 0.049), and maternal history of epilepsy (P = 0.01).

Conclusions

In summary, our study provides support to the hypothesis that non-genetic factors play an important role in the etiology of non-familiar PPD1.

【 授权许可】

   
2013 Materna-Kiryluk et al.; licensee BioMed Central Ltd.

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