Main results of British Thoracic Society hospital oxygen audits in 2008 and 2010
| Year | Number of hospitals | Number of patients | Number of wards | On oxygen (%)* | Oxygen prescribed (%)† | Drug rounds signed (%)‡ | Oximetry recorded (%)§ | Correct delivery system (%)¶ |
| 2008 | 99 | 14 830 | 712 | 17.5 | 32 (10) | 5 | 94 | 47 |
| 2010 | 90 | 22 017 | 1026 | 15.5 | 56 (41) | 16 | 99 | 59 |
↵* Patients using oxygen on the day of the audit.
↵† Patients using oxygen who had a valid prescription or written order (and those with a prescription with target range).
↵‡ Drug rounds on which oxygen was signed for (if patient on oxygen).
↵§ Observation rounds during which oximetry was documented.
↵¶ Patients using the exact oxygen delivery system specified for them.