title: Inadequate reporting of enrolled patient and study site characteristics, and inter-study site differences in randomized controlled trials: A systematic review in six leading medicine journals.
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey. Electronic address: profsyurdakul@gmail.com.
authors.forename: Sebahattin
authors.initials: S
authors.lastname: Yurdakul
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey.
authors.forename: Gizem
authors.initials: G
authors.lastname: Ayan
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey.
authors.forename: Yesim
authors.initials: Y
authors.lastname: Ozguler
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey.
authors.forename: Gulen
authors.initials: G
authors.lastname: Hatemi
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey.
authors.forename: Serdal
authors.initials: S
authors.lastname: Ugurlu
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey.
authors.forename: Emire
authors.initials: E
authors.lastname: Seyahi
authors.affiliation: Division of Rheumatology, Department of Medicine, Cerrahpaşa Medical Faculty, Istanbul University, Cerrahpaşa-Fatih, 34098 Istanbul, Turkey.
authors.forename: Hasan
authors.initials: H
authors.lastname: Yazici
mesh_terms: D004282:Documentation / Q000592:standards*; D006801:Humans; D015337:Multicenter Studies as Topic; D016032:Randomized Controlled Trials as Topic / Q000592:standards*
keywords: CONSORT; Clinical trial; Multicentre trial; Qualitative research; Race/ethnicity; randomized trial