Table 1 Attributes and levels represented in the DCE

Administration

Six 1-min IV injections (requiring 5 h in the hospital) every 4 weeks; no radiation emitted

Six 1-min IV injections (requiring 5 h in the hospital) every 4 weeks; minor radiation emitted

Six 1-min IV injections (requiring 5 h in the hospital) every 4 weeks; some radiation emitted

Four pills taken orally once a day; 1 h at the hospital every 2 weeks

Six 1-h IV infusions (requiring 1–2 weeks in the hospital the first time and 7–8 h each other time) every 3 weeks

OS

14 months

16 months

20 months

Time to SSE

10 months

14 months

16 months

Reduction in the risk of bone pain

25 % chance of suppressing bone pain

50 % chance of suppressing bone pain

75 % chance of suppressing bone pain

Risk of fatigue

0 % chance of fatigue

30 % chance of fatigue

60 % chance of fatigue

Work loss due to treatment

0 days

3 days

5 days