TY - JOUR
T1 - Definition and diagnosis of cerebral palsy in genetic studies
T2 - a systematic review
AU - Pham, Ryan
AU - Mol, Ben W.
AU - Gecz, Jozef
AU - MacLennan, Alastair H.
AU - MacLennan, Suzanna C.
AU - Corbett, Mark A.
AU - van Eyk, Clare L.
AU - Webber, Dani L.
AU - Palmer, Lyle J.
AU - Berry, Jesia G.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Aim: To conduct a systematic review of phenotypic definition and case ascertainment in published genetic studies of cerebral palsy (CP) to inform guidelines for the reporting of such studies. Method: Inclusion criteria comprised genetic studies of candidate genes, with CP as the outcome, published between 1990 and 2019 in the PubMed, Embase, and BIOSIS Citation Index databases. Results: Fifty-seven studies met the inclusion criteria. We appraised how CP was defined, the quality of information on case ascertainment, and compliance with international consensus guidelines. Seven studies (12%) were poorly described, 33 studies (58%) gave incomplete information, and 17 studies (30%) were well described. Missing key information precluded determining how many studies complied with the definition by Rosenbaum et al. Only 18 out of 57 studies (32%) were compliant with the Surveillance of Cerebral Palsy in Europe (SCPE) international guidelines on defining CP. Interpretation: Limited compliance with international consensus guidelines on phenotypic definition and mediocre reporting of CP case ascertainment hinders the comparison of results among genetic studies of CP (including meta-analyses), thereby limiting the quality, interpretability, and generalizability of study findings. Compliance with the SCPE guidelines is important for ongoing gene discovery efforts in CP, given the potential for misclassification of unrelated neurological conditions as CP.
AB - Aim: To conduct a systematic review of phenotypic definition and case ascertainment in published genetic studies of cerebral palsy (CP) to inform guidelines for the reporting of such studies. Method: Inclusion criteria comprised genetic studies of candidate genes, with CP as the outcome, published between 1990 and 2019 in the PubMed, Embase, and BIOSIS Citation Index databases. Results: Fifty-seven studies met the inclusion criteria. We appraised how CP was defined, the quality of information on case ascertainment, and compliance with international consensus guidelines. Seven studies (12%) were poorly described, 33 studies (58%) gave incomplete information, and 17 studies (30%) were well described. Missing key information precluded determining how many studies complied with the definition by Rosenbaum et al. Only 18 out of 57 studies (32%) were compliant with the Surveillance of Cerebral Palsy in Europe (SCPE) international guidelines on defining CP. Interpretation: Limited compliance with international consensus guidelines on phenotypic definition and mediocre reporting of CP case ascertainment hinders the comparison of results among genetic studies of CP (including meta-analyses), thereby limiting the quality, interpretability, and generalizability of study findings. Compliance with the SCPE guidelines is important for ongoing gene discovery efforts in CP, given the potential for misclassification of unrelated neurological conditions as CP.
UR - http://www.scopus.com/inward/record.url?scp=85086438744&partnerID=8YFLogxK
U2 - 10.1111/dmcn.14585
DO - 10.1111/dmcn.14585
M3 - Review Article
AN - SCOPUS:85086438744
SN - 0012-1622
VL - 62
SP - 1024
EP - 1030
JO - Developmental Medicine & Child Neurology
JF - Developmental Medicine & Child Neurology
IS - 9
ER -