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Table 2 Calculation of standardised cumulative doses for the three different situations in the trial.

From: UVB phototherapy in an outpatient setting or at home: a pragmatic randomised single-blind trial designed to settle the discussion. The PLUTO study

Situation Treatment location UVB equipment Treatment schedule Cumulative Dose (CD) Standardisation factor F
1 In the hospital With intensity indicator in J/cm2 CD = CD h × F F = I A I h × I s r I c A MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=vr0dc8meaabaqaciaacaGaaeqabaqabeGadaaakeaacqWGgbGrcqGH9aqpdaWcaaqaaiabdMeajnaaBaaaleaacqWGbbqqaeqaaaGcbaGaemysaK0aaSbaaSqaaiabdIgaObqabaaaaOGaey41aq7aaSaaaeaacqWGjbqsdaWgaaWcbaGaem4CamNaemOCaihabeaaaOqaaiabdMeajnaaBaaaleaacqWGJbWycqWGbbqqaeqaaaaaaaa@3DD2@
2 In the hospital Without intensity indicator in time (seconds) CD = CTT × I A × F F = I c A I c A × I s r I c A MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=vr0dc8meaabaqaciaacaGaaeqabaqabeGadaaakeaacqWGgbGrcqGH9aqpdaWcaaqaaiabdMeajnaaBaaaleaacqWGJbWycqWGbbqqaeqaaaGcbaGaemysaK0aaSbaaSqaaiabdogaJjabdgeabbqabaaaaOGaey41aq7aaSaaaeaacqWGjbqsdaWgaaWcbaGaem4CamNaemOCaihabeaaaOqaaiabdMeajnaaBaaaleaacqWGJbWycqWGbbqqaeqaaaaaaaa@4022@
3 At home Without intensity indicator in time (seconds) C D = C T T × I B 1 + I B 2 2 × F MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=vr0dc8meaabaqaciaacaGaaeqabaqabeGadaaakeaacqWGdbWqcqWGebarcqGH9aqpcqWGdbWqcqWGubavcqWGubavcqGHxdaTdaWcaaqaaiabdMeajnaaBaaaleaacqWGcbGqcqaIXaqmaeqaaOGaey4kaSIaemysaK0aaSbaaSqaaiabdkeacjabikdaYaqabaaakeaacqaIYaGmaaGaey41aqRaemOrayeaaa@4108@ F = I c A I c B × I s r I c A MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=vr0dc8meaabaqaciaacaGaaeqabaqabeGadaaakeaacqWGgbGrcqGH9aqpdaWcaaqaaiabdMeajnaaBaaaleaacqWGJbWycqWGbbqqaeqaaaGcbaGaemysaK0aaSbaaSqaaiabdogaJjabdkeacbqabaaaaOGaey41aq7aaSaaaeaacqWGjbqsdaWgaaWcbaGaem4CamNaemOCaihabeaaaOqaaiabdMeajnaaBaaaleaacqWGJbWycqWGbbqqaeqaaaaaaaa@4024@
  1. CD = Cumulative Dose (J/cm 2) standardised for the study.
  2. CD h = Cumulative Dose (J/cm 2) as calculated by the hospital (retrieved from treatment chart).
  3. CTT = Cumulative Treatment Time (s) as retreived from the diary and/or treatment chart.
  4. F = correction factor for standardisation.
  5. Measurements on location:
  6. I A = Intensity (mW/cm 2) as measured by the investigators for each hospital UVB unit with portable intensity meter A.
  7. I h = Intensity (mW/cm 2) as simultaneously measured by the hospitals' UVB unit irradiation intensity indicator.
  8. I B1= Intensity (mW/cm 2) measured by the home care organisations before start of first treatment, using their meters (B).
  9. I B2= Intensity (mW/cm 2) measured by the home care organisations after finishing last treatment, using their meters (B).
  10. Measurements during calibration:
  11. I cA = Intensity (mW/cm 2) as measured during calibration by the investigators' portable intensity meter A.
  12. I cB = Intensity (mW/cm 2) as measured during calibration by the intensity meters (B) of the home care organisations.
  13. I sr = Intensity (mW/cm 2) as measured during calibration with the High Accuracy Spectroradiometer type OL 752