Marga Hoogendoorn

33 Table 2. Continued Scoring system Nr. of articles Content Validity Reliability Validity Score Explanation Score Results Score Compared with: Results NEMS 11 + Selection interventions from TISS with nurses 29 + ICC: 0.73- 0.99 29, 60-62 +/- TISS-28 29, 48, 58 NAS 63-65 NCR-11 53 Case vignettes 66 r=0.78-0.88, r 2 =0.59-0.76 r=0.16-0.93, r 2 =0.45-0.87 r not stated Accuracy 63.7-99.1% Acuity System 1 NS - NS - +/- Actual staff ICU 30 r = 0.95 ICNSS 4 + Selection interventions with nurses 31, 67 + Kappa 0.81, Cronbach’s alpha 0.91 68 +/- TISS 68, 69 r 2 =0.07-0.24 Perroca’s instrument 3 NS - + Cronbach’s alpha 0.75- 0.94 70, 71 +/- 1 st and 2 nd version 72 NAS 70 Non-ICU system: Beakta 71 r=0.60 r=0.65 r=0.60-0.83 NAS 12 + Selection interventions with nurses 33, 73 +/- Kappa 0.02- 0.69 45, 74 Cronbach’s alpha 0.71 75 + Time observations 33 Prospective/retrospective 57 NAS/shift 75, 76 TISS 33, 63 NEMS 57, 64, 65, 77 Perroca’s instrument 71 r=0,81 r=0.65 not stated r=0.56 r=0.16-0.93 r=0.65 NWL- Patient Category Scoring System 1 NS - NS - +/- Time observations 34 NWL does not reflect nursing time, r not stated CNIS 1 + Selection interventions with nurses 35 + Kappa 0.65 35 +/- NEMS 35 r=0.75