Definitions of smoking
abstinence were generally poor, and only five
of the 10 studies assigned patients to smoking categories on the basis
of smoking status recorded at six months or more after diagnosis.
Patients were followed up for smoking status at six months or longer in five studies, 16 22 23 26 28 but smoking was only measured at the time
of diagnosis or treatment in four studies, 17 21 24 27 and follow - up was not defined in one study.25 Two studies defined quitting as continuous
abstinence from within six months
of starting treatment to longest follow - up, 22 23 and one study defined quitting as continuous
abstinence during and after treatment.21 The remaining studies did not give a
definition of quitting.
The emergence
of various theories both in favor and defiance
of MOOCs hang in a balance with an
abstinence from shifting towards an absolute
definition.