Table 1.

Degree of significance of the different tests of motivation to quit smoking, controlling for the variables age, sex, and type of treatment, for the following variables^a

Variables	RT	VAS	HMPMT	KWT
Qualitative variables
Patient referral (primary care, other specialists, or own free will)	0.786	0.661	0.197	0.112
Level of studies (basic, secondary, or university)	0.967	0.171	0.053	0.048
Quit-smoking reasons
Health/prevention	0.973	0.422	0.114	0.068
Health/decrease in symptoms	0.939	0.388	0.020	0.670
Stop being dependent	0.973	0.370	0.115	0.060
Saving money	0.973	0.398	0.136	0.079
Quality of life	0.973	0.419	0.182	0.063
Do not harm my children/partner	0.973	0.394	0.123	0.843
Be a good example	0.853	0.414	0.113	0.090
Number of reasons for quit smoking	0.820	0.431	0.123	0.096
Smoking situation
Father smokes/smoked	0.951	0.476	0.340	0.035
Mother smokes/smoked	0.887	0.491	0.170	0.064
Older brother smokes/smoked	0.755	0.213	0.071	0.788
Other brothers smoke	0.894	0.360	0.062	0.020
Friends smoke	0.906	0.408	0.175	0.056
Co-workers smoke	0.976	0.640	0.243	0.193
Illness
COPD	0.986	0.362	0.040	0.401
Asthma	0.888	0.432	0.119	0.066
Diabetes mellitus	0.970	0.378	0.110	0.090
Arterial hypertension	0.888	0.568	0.127	0.080
Ischemic heart disease	0.888	0.745	0.116	0.129
Lung cancer	0.978	0.442	0.113	0.084
Bladder cancer, cerebral strokeb	-	-	-	-
Depression	0.943	0.460	0.119	0.056
Anxiety	0.888	0.297	0.093	0.039
Dependence tests
Fagerström test	0.730	0.484	0.136	0.071
Heaviness of Smoking Index test	0.730	0.471	0.117	0.064
Type of treatmentc
Pharmacological/psychological treatment typed	0.861	0.420	0.953	0.309
Treatment alone vs combinede	0.917	0.270	0.191	0.358
Varenicline alone or combined vs other treatments vs without treatment	0.917	0.470	0.121	0.064
Types of NRT treatmentsf
Patches	0.723	0.414	0.186	0.068
Gums	0.723	0.461	0.145	0.087
Tablets	0.723	0.473	0.169	0.790
Oral spray	0.723	0.581	0.075	0.098
Patches + gums	0.723	0.477	0.135	0.049
Patches + tablets	0.723	0.409	0.237	0.504
Patches + oral spray	0.723	0.456	0.110	0.526
Other combinationsg	-	-	-	-
Number of NRT therapies	0.723	0.533	0.196	0.076
Nicotine dependence treatments
Varenicline alone	0.723	0.554	0.206	0.077
Bupropion alone	0.693	0.498	0.250	0.072
NRT alone	0.805	0.623	0.194	0.396
Quantitative variablesh
Demographic
Age (years)	0.730	0.531	0.150	0.581
Sex	0.730	0.534	0.187	0.610
Age and sex	0.730	0.506	0.147	0.127
Age of initiation (years)	0.956	0.019	0.129	0.053
Smoking status
Cigarettes/day	0.917	0.471	0.117	0.065
Number of years smoking	0.956	0.154	0.129	0.053
Cumulative consumption (pack-years)	0.956	0.451	0.125	0.056
Number of previous quit attempts	0.917	0.728	0.006	0.071
Number of previous quit attempts (past/year)	0.917	0.517	0.118	0.068
Physical/psychological characteristics
Weight	0.524	0.750	0.306	0.433
Height	0.709	0.721	0.220	0.010
BMI	0.709	0.760	0.275	0.073
Carbon monoxide (ppm)	0.598	0.061	0.012	<0.001
VAS	0.917	0.470	0.119	0.066
HMPMT	0.917	0.721	0.155	0.585
KWT	0.917	0.875	0.192	0.093

RT: Richmond Test for quitting smoking. VAS: visual analogue scale. HMPMT: Henry Mondor Paris Motivation Test. KWT: Khimji-Watts Test. BMI: body mass index (kg/m²). NRT: nicotine replacement therapy. COPD: chronic obstructive pulmonary disease.

^aThe models include the mentioned variables and all their possible interactions.

^bThese variables were not analyzed as only one subject had this antecedent.

^cIn the treatment models, the variable Type of treatment used so far, namely, Varenicline alone or Combined vs Other treatments vs No treatment that contains the categories No treatment, Other treatments, and Varenicline-containing treatments, is replaced by the specific treatment variable mentioned.

^dCategorized as: No treatment (Reference category), Only pharmacological treatment, Only psychological treatment, and Pharmacological and psychological treatment.

^eCategorized as: No treatment (Reference category), Varenicline, Bupropion or NRT alone, and Combined treatment (Varenicline + NRT, Varenicline + Bupropion, or Bupropion + NRT).

^fNicotine replacement therapy.

^gOther combinations of nicotine replacement therapy were not studied due to the small number of effective treatments.

^hThe models with the variables: Age only, Sex only, and Age and Sex, do not include the variable Treatment. Starting with the variable Age of initiation, the models include the variables mentioned in the title of the table.