The Reliability of the Segmental Assessment of Trunk Control (SATCo) in Children with Cerebral Palsy

ABSTRACTAims: To assess the live-versus-video, intrarater interday and interrater interday reliability of the test Segmental Assessment of Trunk Control (SATCo), which seeks to estimate the degree of sitting trunk control in children with cerebral palsy (CP). Method: Thirty-one children with CP between 9 months and 16 years of age (22 males, mean age 8y 10mo [SD 3y 5mo], Gross Motor Function Classification System level I [n = 13], II [n = 4], III [n = 4], IV [n = 3], and V [n = 7]) were included. Children were tested twice by two raters and tests were video recorded. Wilcoxon Signed-Rank Test, ICC [2,1] and a descriptive measure for absolute reliability were applied. Results: No systematic differences were found between live-versus-video, between raters or days (p > 0.05) except for one analysis. All ICC values were excellent (ICC ≥ 0.9) except for one analysis for which it was good (ICC = 0.73). Complete agreement between scores was seen in 75% of all cases while 22% differed by one segmental level. Only...