Table 2.

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.