Univariate sensitivity analyses per 100 children in each group
| Sensitivity analyses | Cost savings (£2012) | Caries prevented |
|---|---|---|
| Base case | 69984 | 43 |
| Unit costs (£) per child | ||
| Telephone interview (for 6 months; base £13) | ||
| Low £10 | 70302 | 43 |
| High £17 | 69654 | 43 |
| Restorations (base £104) | ||
| Low £92 | 69699 | 43 |
| High £167 | 71323 | 43 |
| Mean medication cost for antibiotics and analgesics (base £9) | ||
| Low £8 | 69960 | 43 |
| High £12 | 70053 | 43 |
| Extraction (base £169) | ||
| Low £162 | 69860 | 43 |
| High £178 | 70123 | 43 |
| General anaesthesia (base £1707) | ||
| Low £810 | 36043 | 43 |
| High £2430 | 97298 | 43 |
| Cost of crowns (base £275) | 69915 | |
| Low £264 | 70046 | 43 |
| High £288 | 43 | |
| Probabilities | ||
| Caries development in telephone intervention (base 0.0108) | ||
| Low 0.003* | 83368 | 51 |
| High 0.017* | 59496 | 37 |
| Caries development in usual care (base 0.0547) | ||
| Low 0.04* | 46833 | 29 |
| High 0.07* | 93328 | 57 |
| A new patient is treated within 6 months (base 0.79) | ||
| Low 0.76 | 69456 | 43 |
| High 0.82 | 70468 | 43 |
| In treatment, proportion of teeth restored (not extracted; base 0.57) | ||
| Low 0.53 | 69968 | 43 |
| High 0.61 | 69697 | 43 |
| In restoration, proportion of filling only (no crowns; base 0.74) | ||
| Low 0.70 | 70216 | 43 |
| High 0.78 | 69741 | 43 |
| Discounting (base costs and effects 5%) | ||
| No discounting | 81405 | 49 |
| 7% discounting | 65934 | 41 |
*Low and high values are 95% CI of the telephone and usual care incidence probabilities calculated using the formula: p±1.96√(p(1−p)/n).