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Table 4 Costs and time-saving analysis ranked according to net additional cost per patient

From: The cost-effectiveness of upfront point-of-care testing in the emergency department: a secondary analysis of a randomised, controlled trial

 Total Average Group Costa
(US$ pp)
Difference between costs of POC tests and control
(US$ pp)
Time Saved – Difference between control group time and POC group time
(min)
Staffing costs saved (US$ pp)ICER - Incremental Cost Effectiveness Ratio
(US$ / min)
Net additional cost per patient in POC group
(US$ pp)
CONTROL81.86
i-STAT + CBC82.861.003123.210.03−22.21
ECG ONLY75.96−5.9096.74−0.65−12.63
i-STAT + CBC + ECG90.738.872619.470.34−10.60
i-STAT92.5910.732115.720.51−4.99
i-STAT + ECG95.3613.502115.720.64−2.22
ECG + LODOX127.4845.622518.721.8226.90
i-STAT + ECG + LODOX143.1161.253223.961.9137.29
ALL POC TESTS144.1062.243123.212.0139.03
i-STAT + LODOX142.5660.702518.722.4341.98
i-STAT + CBC + LODOX146.7464.882720.222.4044.67
LODOX ONLY142.0960.2396.746.6953.49
  1. $ Costs shown in US dollars for each permutation
  2. A negative number indicates a lower cost with the POC test permutation than traditional diagnostic testing
  3. CBC Complete Blood Count, ECG electrocardiogram, ICER incremental cost effectiveness ratio, i-STAT i-STAT POC tests, LODOX® Low-dose x-ray, pp per patient
  4. aThese are the average total actual costs that were incurred for the patients in each permutation. In the Control group, the only tests that were included were those selected by the doctors as they saw fit. In other groups, the average costs appear to be higher than would be expected as extra diagnostic tests may have been performed in those groups over and above those which were assigned (e.g. additional blood tests such as serum amylase or lipase). This principle extends across each of the groups