RT Generic T1 Author-paper affiliation network architecture influences the methodological quality of systematic reviews and meta-analyses of psoriasis A1 Sanz-Cabanillas, Juan Luis A1 Ruano, Juan A1 Gomez-Garcia, Francisco A1 Alcalde-Mellado, Patricia A1 Gay-Mimbrera, Jesus A1 Aguilar-Luque, Macarena A1 Maestre-Lopez, Beatriz A1 Gonzalez-Padilla, Marcelino A1 Carmona-Fernandez, Pedro J. A1 Velez Garcia-Nieto, Antonio A1 Isla-Tejera, Beatriz K1 Collaboration K1 Authorship K1 Metadata K1 Quality of life AB 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 compart-mentalized, 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. PB Public Library of Science SN 1932-6203 YR 2017 FD 2017-03-24 LK http://hdl.handle.net/10668/19181 UL http://hdl.handle.net/10668/19181 LA en NO Sanz-Cabanillas JL, Ruano J, Gomez-Garcia F, Alcalde-Mellado P, Gay-Mimbrera J, Aguilar-Luque M, et al. Author-paper affiliation network architecture influences the methodological quality of systematic reviews and meta-analyses of psoriasis. PLoS One. 2017 Apr 12;12(4):e0175419 DS RISalud RD Apr 17, 2025