Items included in the cost-effectiveness analysis
| Item | Cost, £ |
|---|---|
| Questionnaire pack (per patient)a | |
| Invitation letter | 0.0041 |
| Consent form | 0.0041 |
| Questionnaire | 0.0041 |
| Envelope | 0.0031 |
| Pre-paid envelope | 0.0041 |
| Postage | 0.36 |
| Total | 0.38 |
| Reminders (per patient)a | |
| Reminder letter | 0.0041 |
| Postage | 0.36 |
| Total | 0.36 |
| Administrationb (per patient) | 3.00 |
| Spirometry (per patient)c | |
| Nurse (per spirometry) | 8.50 |
| Salbutamol | 0.083 |
| Spirometry filter | 1.00 |
| Spirometry mouthpiece | 4.79 |
| Total | 14.37 |
| Fixed costsd | |
| Nebulisere | 107.99 |
| Microloop spirometer | 1552.60 |
| Fixed costs per year over the lifetime of the equipmentf | |
| Nebulisere | 23.92 |
| Microloop spirometer | 343.87 |
↵a Costs from Sandwell Primary Care Trust.
↵b Based on NHS Band 4 Point 11 assuming on average 30 minutes per patient for writing letters, data entry, answering queries, and booking spirometry and follow-up.
↵c Costs from recruited general practice.
↵d Cost from Medisave.
↵e Medix AC2000 Nebuliser.
↵f Assuming 5-year lifetime of equipment.