Table 3

Average costs and incremental cost-effectiveness of urine sample collection

Stage 1: first collection attempt
Collection
method
Cost
(GBP)
Incremental cost versus control (catheter)
(GBP)
EffectivenessIncremental effectivenessICER
(GBP)
Average cost-effectiveness
(cost per successful collection by designated method)
(GBP)
Catheter23.380.925.98
SPA16.63−6.750.44−0.4614.6737.80
Voiding stimulation12.40−10.980.3−0.618.3041.32
Clean catch33.8110.430.64−0.26Dominated *52.84
Urine bag88.9065.520.960.061091.9892.60
Stage 2: sample collected by catheterisation if initial attempt unsuccessful
Initial collection methodCost (GBP)Incremental cost per successful sample obtained versus control (GBP)
Catheter25.72
SPA28.763.05
Voiding stimulation29.724.01
Clean catch42.2316.51
Urine bag89.8364.11
Stage 3:obtaining an ultimately definitive sample
Initial collection methodCost (GBP)Incremental cost per definitive sample obtained versus control (GBP)
Catheter49.39
SPA51.842.45
Voiding stimulation52.252.86
Clean catch64.8215.43
Urine bag112.2862.89
  • *Dominated refers to an intervention that is more costly and also less effective than the comparator.

  • ICER, incremental cost-effectiveness ratio; SPA, suprapubic aspirate.