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Table 7 Total numbers of recordings of parameters by trial arm (intention-to-treat analysis)

From: Early warning scoring systems versus standard observations charts for wards in South Africa: a cluster randomized controlled trial

Parameter Number of recordings Mean rank Z value Pvalue
Respiratory rate Total number Median Range
Intervention arm (N = 57) 73 0 0 70.33 −5.42 <0.001
Control arm (n = 57) 2 0 0-2 44.67
Heart rate
Intervention arm (N = 57) 285 4 1-16 51.08 −2.09 0.036
Control arm (n = 57) 346 5 1-16 63.92   
Oxygen saturation
Intervention arm (N = 57) 10 0 0-3 60.04 −1.75 0.080
Control arm (n = 57) 2 0 0-1 54.96
Systolic blood pressure
Intervention arm (N = 57) 325 6 1-18 48.24 −3.03 0.002
Control arm (n = 57) 414 7 1-19 66.76
Temperature
Intervention arm (N = 57) 134 2 1-10 65.69 −2.742 0.006
Control arm (n = 57) 113 2 0-7 49.31
Level of consciousness
Intervention arm (N = 57) 134 1 0-10 70.39 −4.44 <0.001
Control arm (n = 57) 38 1 0-2 44.61
Urine output
Intervention arm (N = 57) 93 2 0-6 58.60 0-.373 0.709
Control arm (n = 57) 87 1 0-4 56.40
  1. P values determined using the Mann-Whitney U test.