Cost-effectiveness analysis of a multifactorial fall prevention intervention in older home care clients at risk for falling

Table 2 Incremental net benefits for six willingness-to-pay values to prevent a fall for the total sample and by age subgroups

	Total sample, all ages (n = 92)^a		Young-old group, 75–84 years (n = 49)^b		Old-old group, 85–95 years (n = 43)^b
WTP	INB of intervention (CAD) [95% CI]	P	INB of intervention (CAD) [95% CI]	P	INB of intervention (CAD) [95% CI]	P
WTP = 0 CAD	−5441 [−15,622 to 4739]	0.291	−20,766 [−35,144 to −6388]	0.006	7739 [−5384 to 20,861]	0.240
WTP = 1000 CAD	−5518 [−15,825 to 4789]	0.290	−19,816 [−34,355 to −5277]	0.009	6190 [−7235 to 19,614]	0.356
WTP = 5000 CAD	−5825 [−17,909 to 6259]	0.341	−16,015 [−31,981 to −49]	0.049	−6 [−17,845 to 17,834]	0.999
WTP = 10,000 CAD	−6208 [−22,389 to 9972]	0.448	−11,264 [−30,383 to 7855]	0.241	−7750 [−34,753 to 19,253]	0.565
WTP = 25,000 CAD	−7359 [−39,756 to 25,039]	0.653	2989 [−29,753 to 35,730]	0.855	−30,983 [−90,576 to 28,611]	0.299
WTP = 50,000 CAD	−9276 [−71,168 to 52,616]	0.766	26,743 [−32,402 to 85,888]	0.367	−69,704 [−186,121 to 46,713]	0.233

^aAll six NB regression models for the full sample were adjusted for age, sex, fear of falling, and previous history of falling
^bAll six NB models for age subgroup analysis were adjusted for sex, fear of falling, and previous history of falling
A positive INB indicates that the intervention was cost-effective when compared to usual care
INB incremental net benefit, Intervention multifactorial fall prevention intervention; CI confidence interval, P p-value, WTP willingness-to-pay

ISSN: 1471-2318