Table 3.
Average variable cost per participant in each treatment arm—alternative scenario.*
| DC (n = 32) ($) | MET/CBT (n = 32) ($) | DC and CM (n = 32) ($) | MET/CBT and CM (n = 33) ($) | |
|---|---|---|---|---|
| Counseling | 159 (77) | 198 (83) | 205 (82) | 213 (94) |
| Testing | ||||
| Materials | 10 (6) | 12 (6) | 13 (6) | 12 (7) |
| Time | 22 (16) | 28 (16) | 29 (15) | 28 (17) |
| Subtotal | 32 (22) | 40 (21) | 42 (21) | 40 (23) |
| Vouchers | ||||
| Earnings | 0 | 0 | 335 (251) | 399 (279) |
| Administration | 0 | 0 | 192 (n/a) | 235 (n/a) |
| Subtotal | 0 | 0 | 527 (251) | 634 (279) |
| Total | 191 (96) | 238 (101) | 774 (326) | 887 (397) |
DC = individual drug counseling; MET/CBT = motivational enhancement therapy/cognitive-behavioral therapy; CM = contingency management.
*
Values represent means and standard deviations (in parentheses). n/a: not applicable.