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Total costs (£) per outcome-stone size/calculation of cost benefit
| Stone size |
|||
|---|---|---|---|
| 0–3.99 mm (n = 53) | 4–5.99 mm (n= 82) | 6–10 mm (n = 57) | |
| Expulsion (n = 169) | Σ = 38976.24 (n = 51) | Σ = 58082.24 (n = 76) | Σ = 32098.08 (n = 42) |
| Surgery (n = 23) | Σ = 2634.78 (n = 2) | Σ = 7904.34 (n = 6) | Σ = 19760.85 (n = 15) |
| Total | Σ = 41611.02 | Σ = 65986.58 | Σ = 51858.93 |
| Total if early surgery | Σ = 56852.57 | Σ = 87960.58 | Σ = 61143.33 |
| Cost benefit of conservative treatment | 26.8% | 25% | 15.2% |
