Table 3 Cost-effectiveness expressed in cost per quality-adjusted life-year (QALY). All costs are per participant and in USD. Costs of health care use are changes from baseline
Cost-effectiveness | Diet group n = 54 | Control group n = 56 | Diet vs. control group |
|---|---|---|---|
Intervention costs | |||
Start of intervention, meeting with dietician (1 h 50 min) | 87 | – | 87 |
Telephone costs, time (40 min) and telephone fee | 32 | – | 32 |
Email conversation, time (1 h 20 min) | 63 | – | 63 |
Equipment (loan of balance) | 7 | – | 7 |
Cost of printed material | 2 | 4 | −2 |
Sum of direct costs | 191 | 4 | 187 |
Overhead, administration and local costs, 20% | 38 | 1 | 37 |
Sum of total costs per woman | 229 | 5 | 224 |
Cost of health care use | 599 | 611 | −12 |
QALY | |||
QALY based on SF-6D | 0.088 | 0.061 | 0.027 |
QALY based on EQ-5D-3 L | 0.069 | −0.021 | 0.090 |
QALY based on EQ-VAS | 0.188 | 0.063 | 0.125 |
Cost-effectiveness | |||
Cost per QALY based on SF-6D | 7889 | ||
Cost per QALY based on EQ-5D-3 L | 2367 | ||
Cost per QALY based on EQ-VAS | 1704 | ||