Rugby Fans in Training New Zealand (RUFIT NZ): a randomized controlled trial to assess the effectiveness of a healthy lifestyle program for overweight men delivered through professional rugby clubs

Table 5 Results of the economic evaluation

Parameter	Analysis	Difference	P-value	Cost ^c
Parameter	Analysis	Mean (95% CI) ^a,b	P-value	Cost ^c
QALYs gained	Base-case	0.02 (0.01 – 0.03)	< 0.001	$752
QALYs gained	Non-imputed	0.01 (-0.03 – 0.06)	0.623	$752
Cost-effectiveness analysis		ICER	Probability of cost-effectiveness (%) ^a
Cost per QALY gained	Base-case	$40,269 per QALY gained	78.0
Cost per QALY gained	Non-imputed	$231,895 per QALY gained	42.9
Cost per kg body weight loss	Base-case	$259 per KG weight loss	-
Cost per kg body weight loss	Non-imputed	$252 per KG weight loss	-

ICER incremental cost-effectiveness ratio, KG kilogram, QALY quality-adjusted life year
^a Based on 2,000 bootstrapped iterations following multiple imputation
^b Generalised linear regression model adjusted for baseline weight, age in years, study wave, and stratification factors (BMI category, self-reported ethnicity, study centre)
^c The cost of RUFIT-NZ was $752 per participant; no costs were incurred for participants in the control arm

ISSN: 1479-5868