An economic evaluation of a specialist preventive care clinician in a community mental health service: a randomised controlled trial

Table 4 Budget impact analysis

1. Time Line¹	2018	2019	2020	2021	2022
Eligible Clients (n)²	1616	1696	1781	1870	1964
Clients Accessing Intervention (n)	441	487	537	592	652
Intervention Access Rate (a/g)	27.3%	28.7%	30.1%	31.6%	33.2%
2. Intervention Costs	($)	($)	($)	($)	($)
Clinical
Clinician’s Counselling Labour	$98,516	$100,585	$102,697	$104,854	$107,056
Overheads (27.5% of labour cost)	$27,092	$27,661	$28,242	$28,835	$29,440
Implementation
Clinician’s Training Labour	$795	$0	$0	$0	$0
Administrative Labour	$782	$821	$862	$905	$950
Premises cost/room space	$5880	$5880	$5880	$5880	$5880
Telephone calls	$2229	$2340	$2457	$2580	$2709
Printing	$248	$260	$273	$287	$301
Clinician Travel	$1418	$1489	$1564	$1642	$1724
Overheads (27.5% of labour cost)	$434	$226	$237	$249	$261
Total (Incremental Cost)³	$137,393	$139,036	$141,975	$144,982	$148,060
Cost of Intervention per Client	$85.04	$81.96	$79.70	$77.52	$75.39
3. Net Impacts	(n)	(n)	(n)	(n)	(n)
Expected Incremental Referrals Acceptances⁴
Quitline	87	101	116	135	156
Get Healthy service	295	342	396	458	530
Total referral acceptances	382	442	512	593	686

¹An annual increase for the following parameters was assumed: 5% annual increase in client population, 5% annual increase in uptake of the preventive care consultation, 2.1% annual increase in the salary of the specialist clinician, and a 5% annual increase in the incremental effectiveness of the intervention. In line with these increases, an incremental annual increase in implementation costs (administrative, telephone calls, printing and travel) was calculated accordingly;
²Represents the number of clients estimated to be eligible to attend the additional consultation i.e. excluding those identified as too unwell (based on trial data);
³The intervention is an add on to Usual Care, hence all its costs are the incremental costs;
⁴Based on percentages (effect/population) in study

ISSN: 1472-6963