Table 4 Lifetime cost-effectiveness for the adherent group

Base case

Intervention

Usual care

Difference

Intervention

Usual care

Difference

Mean cost per person (NZ$)

9,952

9,700

253

11,032

10,833

199

QALYs gained per person

16.680

16.623

0.057

17.398

17.330

0.068

ICER per QALY (NZ$)

4,431

2,909

Probability cost effective^a

0.860

0.902

Scenarios

Incr. costs (NZ$)

Incr. QALYs

ICER (NZ$)

Probability cost effective ^a

Incr. costs (NZ$)

Incr. QALYs

ICER (NZ$)

Probability cost effective ^a

0% discount rate for costs & QALYs

−68

0.158

Dominant

0.894

−220

0.186

Dominant

0.893

5% discount rate for costs & QALYs

310

0.042

7,404

0.831

272

0.051

5,371

0.886

30-year-old cohort

307

0.055

5,633

0.879

275

0.061

4,521

0.895

50-year-old cohort

189

0.064

2,942

0.858

238

0.070

3,419

0.847

60-year-old cohort

128

0.065

1,976

0.777

203

0.069

2,962

0.814