Health service costs of the APT Hotline strategy
| Resources used | Cost item | Unit cost, £* | n | Total cost, £ | |
| Intervention (mobile phone and credit) | Per partner† | Clinic A: | £1.28 | 18 | £22.95‡ |
| Clinic B: | £0.49 | 47 | £22.95‡ | ||
| A & B: | £0.71 | 65 | £45.90‡ | ||
| Consultation†† (non-eligible partners) | Per partner | Clinic A: | £11.56 | 1 | £11.56 |
| Clinic B: | £8.57 | 13 | £111.41 | ||
| A & B: | £8.83 | 14 | £123.62 | ||
| Consultation†† (eligible partners) | Per partner | Clinic A: | £11.56 | 17 | £196.52 |
| Clinic B: | £12.85 | 34 | £436.90 | ||
| A & B: | £12.37 | 51 | £630.87 | ||
| Admin work (nurse) | Per partner† | Clinic A: | £6.74 | 18 | £121.32 |
| Clinic B: | £5.50 | 47 | £258.50 | ||
| A & B: | £5.67 | 65 | £368.55 | ||
| Admin work (receptionist) | Per partner | Clinic A: | £1.59 | 0§ | £0 |
| Clinic B: | £1.29 | 22¶ | £28.38 | ||
| A & B: | £1.33 | 22 | £29.26 | ||
| APT pack (chlamydia/NGU) | Per partner | Clinic A: | £29.48 | 14 | £412.72 |
| Clinic B: | £29.48 | 28 | £825.44 | ||
| A & B: | £29.48 | 42 | £1238.16 | ||
| APT pack (gonorrhoea) | Per partner | Clinic A: | £24.31 | 2 | £48.62 |
| Clinic B: | £24.31 | 3 | £72.93 | ||
| A & B: | £24.31 | 5 | £121.55 | ||
| Hotline expenditure cost | Clinic A: | £813.69* (£654.21–£973.17)** | |||
| Clinic B: | £1756.51* (£1412.23–£2100.79)** | ||||
| A & B: | £2557.91* (£2056.56–£3059.26)** | ||||
| Average cost per partner treated | A & B: | 47 | £54.42* | ||
↵* Costs were inflated to £UK at 2008 rates. Costs for Clinics A & B combined are based on national averages. Appropriate multipliers were applied to reflect differences in costs in London (for Clinic A) and outside London (for Clinic B).
↵† Applied to eligible and non-eligible partners.
↵‡ Cost for the first year of the telephone device, annuitised for 3 years at an interest rate of 3%. We have also included £10 for mobile credit.
↵§ All packs were given to the index patient after his/her consultation. None of the eligible partners collected the pack from clinic's reception.
↵¶ 22 out of 34 eligible partners collected the APT pack from reception. The rest were given to the index patient after his/her consultation.
↵** 95% CI—we assumed normality and used z (1.96) score in calculating the CI.
↵†† Consultation refers to the time spent on the phone talking to the partner to ascertain eligibility or not. Eligible partners would be encouraged to collect the APT pack. Non-eligible partners would be excluded from study but their consultation cost is included because the hotline is required to establish eligibility.