This study addresses an important problem in public health, smoking in diabetics. The morbidity and mortality observed in diabetics is linked to macro and microvascular problems. The consumption of tobacco has a multiplying effect on these vascular problems in diabetics. This study aims to evaluate the effectiveness of an intensive intervention in tobacco addiction in diabetic patients in primary care.

Other objectives of the study are:

1. To study the effectiveness of an intensive smoking cessation intervention in the evolution of the phases of change, as based on the Prochaska and DiClemente model, in diabetic patients attended in primary care.
2. To evaluate the effectiveness of an intensive smoking cessation intervention in the evolution of tabacco consumption in diabetic patients attended in primary care.
3. To quantify the time spent in the intensive smoking cessation intervention compared with the usual care in primary care.

Inclusion Criteria:

• diabetic patients who are active smokers
• over the age of 14
• receive routine care in their respective health center

Exclusion Criteria:

• patients with communication difficulties (cognitive deterioration, language barrier)
• patients who normally receive their habitual care in a different health center
• patients with terminal diseases, psychiatric diseases that are unstable, or with addictions to other substances
• patients that are already receiving treatment to quit smoking at the time of recruitment
• patients that are difficult to locate during the study period
• patients that refuse to participate in the study