Warwick Hip Trauma Study: a randomised clinical trial comparing interventions to improve outcomes in internally fixed intracapsular fractures of the proximal femur. Protocol for The WHiT Study

Table 1 Sample sizes calculated for various scenarios

Rate of failure in control group (%)	Rate of failure in the intervention group (%)
	10		15		25
	80% power	90% power	80% power	90% power	80% power	90% power
25	100	133
30	62	82	121	161
35	43	57	73	97	329	440

ISSN: 1471-2474