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Table 2 Base-case cost effectiveness results (probabilistic analysis)

From: Cost-effectiveness of interventions for increasing the possession of functioning smoke alarms in households with pre-school children: a modelling study

Intervention

Expected QALYs

Expected Costs (£s)

Incremental QALYs

Incremental Costs (£s)

ICER (£s per QALY)

Probability CE (£30,000)

Probability CE (£50,000)

(1) UC

25,056.393

19,317

----

----

----

0.619

0.312

(25039.06 to 25073.8)

(7850 to 40561)

(2) E

25,056.401

20,055

----

----

Extendedly

0.000

0.001

(25039.07 to 25073.81)

(8750 to 41093)

dominated

(3) E + FE

25,056.416

20,094

0.023

777

34,200

0.381

0.687

(25039.09 to 25073.81)

(9193 to 40546)

(4) E + FE + HI

25,056.416

22,091

----

----

Dominated

0.000

0.000

(25039.09 to 25073.82)

(11047 to 42710)

(5) E + FE + F

25,056.416

21,638

----

----

Dominated

0.000

0.000

(25039.09 to 25073.81)

(10654 to 42219)

(6) E + HI

25,056.403

21,991

----

----

Dominated

0.000

0.000

(25039.08 to 25073.81)

(10673 to 43168)

(7) E + FE + F + HI

25,056.417

23,596

0.001

3,502

3,466,635

0.000

0.000

(25039.09 to 25073.82)

(12021 to 44319)

  1. Data are expected QALY (95% credibility interval) and expected costs (95% credibility interval) per 1,000 households. (1) UC = usual care; (2) E = education; (3) E + FE = education plus low cost/free safety equipment; (4) E + FE + HI = education plus low cost/free safety equipment plus home inspection; (5) E + FE + F = education plus low cost/free safety equipment plus fitting; (6) E + HI = education plus home inspection; (7) E + FE + F + HI = education plus low cost/free safety equipment plus fitting plus home inspection. Probability CE = probability that intervention is cost effective at a £30,000/£50,000 threshold value. QALYs = quality-adjusted life years.