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. 2017 Feb 25;389(10071):823–833. doi: 10.1016/S0140-6736(16)32379-0

Table 3.

Self-reported changes in daily cigarette consumption, quit attempts, and changes in motivation and intention to quit in continuing smokers

Intervention group (n=2190) Control group (n=1547) Total (N=3737)
Change in daily cigarette consumption −2·6 (6·4) −2·7 (6·7) −2·6 (6·5)
Number who made a quit attempt 528 (24·1%) 359 (23·2%) 887 (23·7%)
Changes in motivation and intention
Change in intention to quit (3 to −3) −0·28 (1·11) −0·28 (1·07) −0·28 (1·1)
Change in want to quit (4 to −4) 0·05 (1·11) 0·04 (1·08) 0·05 (1·08)
Change in determination to quit (4 to −4) −0·01 (1·24) 0·04 (1·25) 0·01 (1·24)
Change in confidence in quitting (4 to −4) 0·10 (1·31) −0·02 (1·22) 0·05 (1·27)

Data are mean (SD) or n (%). The subgroup of continuing smokers was not representative of all participants randomly assigned, but was defined post-baseline.