The cost-effectiveness of a telephone-based intervention to support caregivers of older people discharged from hospital

Table 4 Cost-effectiveness of FECH according to (a) base-case analysis and (b-h) deterministic sensitivity analyses

Analysis	Branch	Cost	Incr cost	Effectiveness^a	Incr eff	ICER^d
a) ITT (base case)	Control	15.34	–	0.21	–	1730.84
a) ITT (base case)	Intervention	283.62	268.28	0.36	0.15
b) FACQ – Distress	Control	15.34	–	−0.09^b	–	1788.53
b) FACQ – Distress	Intervention	283.62	268.28	−0.24^b	0.15
c) FACQ – Strain	Control	15.34	–	0.01^c	–	1676.75
c) FACQ – Strain	Intervention	283.62	268.28	−0.15^c	0.16
d) Per-protocol analysis	Control	15.89	–	0.22	–	1431.23
d) Per-protocol analysis	Intervention	352.53	336.34	0.45	0.24
e) FECH costs based on 25th percentile observed during trial	Control	15.34	–	0.21	–	1297.55
	Intervention	216.46	201.12	0.36	0.15
f) FECH costs based on 75th percentile observed within trial	Control	15.34	–	0.21	–	2187.61
	Intervention	354.42	339.08	0.36	0.15
g) FECH effectiveness based on lower limit of 95% CI of population proportion	Control	15.34	–	0.21	–	5061.89
	Intervention	283.62	268.28	0.26	0.15
h) FECH effectiveness based on upper limit of 95% CI of population proportion	Control	15.34	–	0.21	–	1043.89
	Intervention	283.62	268.28	0.46	0.26

Deterministic sensitivity analyses vary from base-case as follows: (b) outcome of carer distress at Time 2; (c) outcome of carer strain at Time 3; (d) carer preparedness under per-protocol analysis; (e-f) carer preparedness at the interquartile range of FECH costs observed; (g-h) carer preparedness at the limits of the 95% CI of the proportion of carers reporting an improvement in preparedness
^aProportion of carers in each group reporting an improvement of at least two points on the Carer Preparedness scale to Time 2, unless otherwise stated
^bMean change in distress scores to Time 2
^cMean change in strain scores to Time 3
^dAUD$2015

ISSN: 1471-2318