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. 2020 Oct 23;15(10):e0240968. doi: 10.1371/journal.pone.0240968

Table 5. Frequencies and percentages for smoking related outcome variables at baseline and each follow up time point for the e-cigarette (EC) and usual care (UC) arms.

EC Arm UC Arm
Sustained abstinence
    4 weeks: N (%) 8/39 (21%) 0/21 (0%)
    12 weeks: N (%) 2/34 (6%) 0/18 (0%)
    24 weeks: N (%) 3/35 (11%) 0/12 (0%)
7 day point prevalence
    4 weeks 7/39 (18%) 0/21 (0%)
    12 weeks 5/34 (15%) 0/18 (0%)
    24 weeks 3/35 (9%) 0/12 (0%)
50% reduction in CPD
    4 weeks 21/39 (54%) 4/21 (19%)
    12 weeks 20/34 (59%) 4/18 (22%)
    24 weeks 15/35 (43%) 3/12 (25%)
50% reduction in expired CO
    4 weeks 10/39 (26%) 2/21 (10%)
    12 weeks 7/34 (21%) 1/18 (6%)
    24 weeks 7/35 (20%) 3/12 (25%)

N = number meeting criteria / number attending the session