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2017 ; 12
(4
): e0175419
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gab.com Text
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English Wikipedia
Author-paper affiliation network architecture influences the methodological
quality of systematic reviews and meta-analyses of psoriasis
#MMPMID28403245
Sanz-Cabanillas JL
; Ruano J
; Gomez-Garcia F
; Alcalde-Mellado P
; Gay-Mimbrera J
; Aguilar-Luque M
; Maestre-Lopez B
; Gonzalez-Padilla M
; Carmona-Fernandez PJ
; Velez Garcia-Nieto A
; Isla-Tejera B
PLoS One
2017[]; 12
(4
): e0175419
PMID28403245
show ga
Moderate-to-severe psoriasis is associated with significant comorbidity, an
impaired quality of life, and increased medical costs, including those associated
with treatments. Systematic reviews (SRs) and meta-analyses (MAs) of randomized
clinical trials are considered two of the best approaches to the summarization of
high-quality evidence. However, methodological bias can reduce the validity of
conclusions from these types of studies and subsequently impair the quality of
decision making. As co-authorship is among the most well-documented forms of
research collaboration, the present study aimed to explore whether authors'
collaboration methods might influence the methodological quality of SRs and MAs
of psoriasis. Methodological quality was assessed by two raters who extracted
information from full articles. After calculating total and per-item Assessment
of Multiple Systematic Reviews (AMSTAR) scores, reviews were classified as low
(0-4), medium (5-8), or high (9-11) quality. Article metadata and journal-related
bibliometric indices were also obtained. A total of 741 authors from 520
different institutions and 32 countries published 220 reviews that were
classified as high (17.2%), moderate (55%), or low (27.7%) methodological
quality. The high methodological quality subnetwork was larger but had a lower
connection density than the low and moderate methodological quality subnetworks;
specifically, the former contained relatively fewer nodes (authors and reviews),
reviews by authors, and collaborators per author. Furthermore, the high
methodological quality subnetwork was highly compartmentalized, with several
modules representing few poorly interconnected communities. In conclusion,
structural differences in author-paper affiliation network may influence the
methodological quality of SRs and MAs on psoriasis. As the author-paper
affiliation network structure affects study quality in this research field,
authors who maintain an appropriate balance between scientific quality and
productivity are more likely to develop higher quality reviews.