Table 1 Estimates of healthcare resource use (95% confidence intervals in parentheses)
ResourceProbability
Probability of having an initial outpatient visit before a diagnostic sleep study0.31 (0.11 to 0.51)
Probability of one outpatient visit after a diagnostic sleep study0.69 (0.49 to 0.89)
Probability having of a home sleep study0.75 (0.59 to 0.90)
Probability of having a home titration study0.99 (0.97 to 1.00)
Probability of having a titration study in hospital0.04 (0 to 0.05)
Probability of using CPAP (fixed) for titration0.19 (0.01 to 0.36)
Probability of using CPAP (auto) for titration0.81 (0.64 to 0.99)
Probability of seeing a consultant during the titration phase0.40 (0.05 to 0.52)
Probability of seeing a specialist nurse during the titration phase1.00 (0.53 to 1.00)
Probability of seeing a technician during the titration phase0.48 (0.10 to 0.93)
Probability of having a humidifier0.38 (0.22 to 0.50)
Probability of switching from fixed to auto CPAP in the second year0.06 (0.04 to 0.07)
Probability of switching from fixed to auto CPAP in subsequent years0.01 (0 to 0.02)
Probability of a non-compliant patient returning their machine0.75 (0.50 to 1.00)
Probability of having a follow-up visit within 3 months of starting CPAP0.75 (0.50 to 1.00)
Probability of having a follow-up visit within 4–6 months of starting CPAP0.75 (0.75 to 1.00)
Probability of annual follow-up visits after starting CPAP with a consultant0.13 (0 to 0.27)
Probability of annual follow-up visits after starting CPAP with a specialist nurse0.61 (0.33 to 0.79)
Probability of annual follow-up visits after starting CPAP with a technician0.26 (0.09 to 0.54)
Probability of a deceased patient’s machine being returned0.90 (0.75 to 1.00)
  • CPAP, continuous positive airway pressure.