Table 6.
Presented outcome measures of DCEs
| Item | Category | 1990–2000 | 2001–2008 | 2009–2012 | Current: 2013–2017 | ||||
|---|---|---|---|---|---|---|---|---|---|
| N = 34a | (%)b | N = 114a | (%)b | N = 179a | (%)b | N = 301a | (%)b | ||
| Presented outcome measure | Per WTP unit | 10 | (29) | 44 | (39) | 54 | (30) | 80 | (27) |
| Per WTA unit | N/C | N/C | N/C | N/C | N/C | N/C | 13 | (4) | |
| Per risk unit | 3 | (9) | 2 | (2) | 4 | (2) | 9 | (3) | |
| Monetary welfare measure | 5 | (15) | 14 | (12) | 4 | (2) | 8 | (3) | |
| Utility score | 8 | (24) | 18 | (16) | 14 | (8) | 50 | (17) | |
| Odds ratio | 1 | (3) | 9 | (8) | 14 | (8) | 30 | (10) | |
| Probability score | 1 | (3) | 15 | (13) | 14 | (8) | 38 | (13) | |
| Coefficients | N/C | N/C | N/C | N/C | N/C | N/C | 169 | (56) | |
| Other | N/C | N/C | N/C | N/C | 90 | (50) | 147 | (49) | |
DCE discrete choice experiment, N/C not collected (data were not collected for this specific category), WTA willingness to accept, WTP willingness to pay
aNumbers of individual studies might not add up to total Ns as some studies addressed multiple topics
bPercentages might not add up to 100% because some studies addressed multiple topics and because of rounding error