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Table 4 Example: Assessing the quality of evidence for resource consequences. The quality of the evidence for the estimates of difference in resource use between a programme of outreach visits (targeted at all general practitioners in Norway) and no programme (the status quo) varied. (See also Tables 1 and 3.)

From: SUPPORT Tools for evidence-informed health Policymaking (STP) 12: Finding and using research evidence about resource use and costs

Resources Data sources
Development of software High quality
Training of outreach visitors High quality
Printed materials High quality
Travel Moderate quality*
Pharmacists' time Moderate quality*
Administrative time High quality
Physicians' time Moderate quality*
Technical support High quality
Drug expenditure Moderate to low quality
Patient visits Moderate to low quality
Laboratory test (potassium) Moderate to low quality
  1. * The evidence for travel, pharmacists' time and physician time was of moderate quality. This was because of uncertainty about the extrapolation of data from practices in the trial to the rest of the country
  2. The evidence for drug expenditures, patient visits and laboratory tests was of moderate to low quality. This was because of uncertainty about the extrapolation of data from the trial to the rest of the country and, in addition, because of extrapolation beyond one year (the duration of the trial) to estimate the resource consequences over several years for a programme targeted at all general practitioners in the country
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