Effects of sixty six adolescent tobacco use cessation trials and seventeen prospective studies of self-initiated quitting

Table 7 Follow-up outcomes of the 66 studies as a function of theory

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).

ISSN: 1617-9625