Summary of cumulative cost in two arms (amount in ZAR)
| Surgery arm n=47 | BNT arm n=54 | P value | |||
| Procedures (n) | Type of procedure | Cumulative cost | Type of procedure | Cumulative cost | |
| 1 | BMR if ≤60 PD (19 pts) BMR+BNT if >60 PD (16 pts) | 7743.04† 7900.24‡ | BNT 5 units (11 pts) | 1713.14 | 0.0001* |
| 2 | BNT 5 units (8 pts) | 9456.18† 9613.38‡ | BNT 5 units (5 pts) | 3426.28 | |
| 3 | LR resection (4 pts) | 17200.22† 17356.42‡ | BNT 5 units (4 pts) | 5139.42 | |
| 4 | – | – | BMR (34 pts) | 12 882.46 | |
| Mean cost | 9124.27 | 9158.08 | p=0.26 |
*Kruskal-Wallis: †surgery only: ‡surgery augmented with BNT.
BMR, bimedial rectus muscle recession; BNT, botulinum neurotoxin; LR, lateral rectus.