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Hypnosis and behaviour therapy in smoking cessation
359
Table 2. Overall abstinence rates at the post-, three-month
and six-month follow-up periods.
Follow-up
Dropouts as
Period
Successes
Post
56.8%
Three Months
38.6%
Six Months
38.5%
Dropouts as
Failures
55.5%
37.8%
33.3%
Plasma thiocyanate levels also correlated highly with both estimated (r = 0.85,
p <
0.001) and monitored smoking rates (r = 0.83,
p <
0.001).
Percentage abstinent with and without dropouts
Table 2 presents the percentage abstinent at posttreatment and at the follow-up pe-
riods. Two sets of figures are given, one on the basis that all subjects who dropped out
were considered failures and the other on the basis that all subjects who dropped out
were successes. This indicates the maximum and minimum success rates and the range
of successful smoking cessation for this study.
It should be noted that all percentage abstinence figures presented subsequently, are
based on the assumption that dropouts from the programme were failures. Figure 1
I-
)-
l-
I-
l-
,-
Hypnosis
F. S
A.P
q
Post
3 Months
6 Months
Fig. 1. Comparison of percentage abstainers for the three experimental groups.