Marga Hoogendoorn

62 Table 3. NAS activities with their points according to Miranda et al. (2003) 7 , and the median converted NAS times and observed times per NAS item NAS activity NAS points per activity Median converted NAS time (minutes) Median observed time, minutes [IQR] Difference in minutes, median [IQR] 1a. Present at bedside and continuous observation or active for <2 hrs. 1 4.5 21.6 14.22 [7.26-26.17 7.38 [-4.57-14.35]* 1b. Present at bedside and continuous observation or active for ≥ 2 hrs. 12.1 NA NA NA 1c. Present at bedside and continuous observation or active for ≥ 4 hrs. 19.6 NA NA NA 2. Laboratory, biochemical and microbiological investigations 4.3 20.64 5.45 [3.13-8.81] 15.19 [11.83-17.51]* 3. Medication, vasoactive drugs excluded 5.6 26.88 2.24 [0.90-4.91] 24.64 [21.97-25.98]* 4a. Performing hygiene procedures ≤ 2 hrs. 4.1 19.68 11.58 [3.95-27.8] 8.1 [-8.12-15.73]* 4b. Performing hygiene procedures >2 hrs. 16.5 NA NA NA 4c. Performing hygiene procedures >4 hrs. 20.0 NA NA NA 5. Care of drains 1.8 8.64 2.41 [0.92-4.64] 6.23 [4.0-7.72]* 6a. Mobilization and positioning, performing procedure(s) up to 3 times per 24 hrs. 5.5 26.4 2.46 [0.91-4.88] 23.94 [21.52-25.49]* 6b. Mobilization and positioning, performing procedure(s) >3 times per 24 hrs., or with two nurses 12.4 59.52 4.82 [2.17-9.33] 54.69 [50.19-59.49]* 6c. Mobilization and positioning, performing procedure(s) with 3 nurses 17.0 81.6 2.4 [0.89-6.16] 79.2 [75.44-80.71]* 7a. Support or care for patient or relatives for about 1 hrs. 4.0 19.2 73.8 [68.46-84.36] -54.6 [-49.3 - -65.16]*