Table 1.
Unit costs and average quantities per participant for Internet-based therapy and Internet-based self-help.
| Cost type | Unit | Internet therapy | Internet self-help | ||||
| No. of units |
€/unit | No. of units |
€/unit | ||||
| Intervention costs | |||||||
| Therapist therapy | Hour | 2.49 | 79.20 | NAa | NA | ||
| Therapist administration | Hour | 0.55 | 79.20 | NA | NA | ||
| Software development | Participant | 1 | 23.25 | 1 | 4.87 | ||
| ICTb service | Participant | 1 | 14.92 | 1 | 2.49 | ||
| Software overhead | Participant | 1 | 4.27 | 1 | 4.27 | ||
| Total intervention costs | Participant | 1 | 283.21c | 1 | 11.63c | ||
| Participant’s leisure time | Hour | 10.33 | 9.18 | 2.43 | 9.18 | ||
| Work absenteeismd | Hour | 32.12 | 22.21–52.91e | 18.35 | 22.21–52.91e | ||
| Work presenteeismf | Hour | 8.15 | 22.21–52.91e | 12.15 | 22.21–52.91e | ||
a Not applicable.
b Information and computer technology.
c Average intervention cost per participant. Individual costs varied and depended on the amount of intervention uptake.
d Average number of work hours lost in the 6 months preceding measurement due to participants not going to work (eg, sick leave).
e Range of unit cost. The unit value was dependent on sex and age of the participant and based on 2010 Harmonized Index of Consumer Prices inflation-corrected average hourly wages [19].
f Average number of work hours lost in the 6 months preceding measurement due to participants not functioning well professionally while at work.