|
Theory
|
# studies
|
Quit % (#s)
|
Quit 2% (#s)
|
% reduct (#s)
|
% reduct 2 (#s)
|
|---|
|
Motivation enhancement
|
9
|
19 (8)
|
18 (9)
|
27 (4)
|
-
|
|
Contingency-based reinforced
|
5
|
16 (5)
|
-
|
6 (2)
|
13 (3)
|
|
Social influences
|
11
|
12 (10)
|
-
|
27 (5)
|
-
|
|
Cognitive behavioral
|
16
|
11 (12)
|
11 (15)
|
32 (6)
|
44 (10)
|
|
Stage of change
|
7
|
11 (5)
|
12 (7)
|
13 (2)
|
24 (4)
|
|
Affect-oriented
|
2
|
9 (2)
|
-
|
23 (1)
|
-
|
|
Addiction/recovery
|
9
|
5 (3)
|
12 (9)
|
42 (4)
|
43 (7)
|
|
Supply reduction
|
7
|
0 (4)
|
0 (5)
|
15 (2)
|
-
|
- Quit % (#s) = % quit at follow-up (# studies that provided data); Quit 2% (#s) = % quit at follow-up, and immediate posttest quit rates used if data is missing (# studies that provided data); % reduct (#s) = % reduction among non-quitters, at follow-up (# studies that provided data); % reduct 2 (#s) = % reduction among non-quitters at follow-up, and immediate posttest percentage reduction rates used if data is missing (# studies that provided data).
