Estimates of Quality and Reliability With the Physiotherapy Evidence-Based Database Scale to Assess the Methodology of Randomized Controlled Trials of

include an evaluation of the methodological quality of the individual studies that have been included, and are usually conducted by at least 2 individuals. The objective of this study was to assess the methodolog-ical quality and reliability of a series of randomized controlled trials (RCTs) of both pharmacological and nonpharmacological interven-tions by use of the 10-item Physiotherapy Evidence-Based Database (PEDro) Scale. Methods. Two abstractors independently reviewed 81 RCTs assessing a variety of interventions. The Cohen kappa statistic and the intraclass correlation coefficient (ICC) were used to assess agreement between abstractors. Results. The average total PEDro scores were 5.94 (SD1.43) for all studies combined, 6.88 (SD1.2) for pharmacological studies, and 5.29 (SD1.26) for nonpharmaco-logical studies. The median score for pharmacological studies was significantly higher than that for nonpharmacological studies (7 versus 5). Pair-wise kappa scores ranged from a low of.452 for conceale