Validation of the nursing workload scoring systems “Nursing Activities Score” (NAS), and “Therapeutic Intervention Scoring System for Critically Ill Children” (TISS-C) in a Greek Paediatric Intensive Care Unit

Abstract Objectives To assess the reliability and validity of the Greek version of Nursing Activities Score (NAS), and Therapeutic Intervention Scoring System for Critically Ill Children (TISS-C) in a Greek Paediatric Intensive Care Unit (PICU). Research methodology A methodological study was performed in one PICU of the largest Paediatric Hospital in Athens-Greece. The culturally adapted and validated Greek NAS version, enriched according to the Norwegian paediatric one (P-NAS), was used. TISS-C and Norwegian paediatric interventions were translated to Greek language and backwards. Therapeutic Intervention Scoring System (TISS-28) was used as a gold standard. Two independent observers simultaneously recorded 30 daily P-NAS and TISS-C records. Totally, 188 daily P-NAS, TISS-C and TISS-28 reports in a sample of 29 patients have been obtained during five weeks. Descriptive statistics, reliability and validity measures were applied using SPSS (ver 22.0) (p ≤ 0.05). Results Kappa was 0.963 for P-NAS and 0.9895 for TISS-C (p  Conclusion These results support the validity of P-NAS and TISS-C scales to be used in greek PICUs.