Effectiveness of Regular Reporting of Spirometric Results on Smoking Quit Rate. (ESPIROTAB)

• Smoking abstinence: self reported abstinence (12 or more months smoking free. [ Time Frame: 24 months after last recruitment ] [ Designated as safety issue: No ]
  Smoking cessation confirmed by air carbon monoxide concentration. Safety Issue?: (FDAAA) No
  
  

Design: Intervention study with two randomized arms in 5 primary care centers of two health areas.

Study population: 466 smokers over the age of 18 consulting their primary care physician for any reason and who do not fulfil the exclusion criteria.

Measurements and interventions: The study data will be collected using a structured questionnaire and data collection sheets specifically designed for the study The structured questionnaire will include the following data: sociodemographics, clinical history, smoking habit, respiratory symptomatology, smoking dependence test and smoking cessation motivation test.

The data collection sheets will include information related to the spirometric results, peak expiratory flow rate and the carbon monoxide test when performed.

On visit 0, the primary care physician will give a brief structured smoking cessation advice to all patients combined with a detailed and structured discussion of the spirometric results. After this visit the patients will be randomised in two arms (control and intervention groups).

Randomisation will be performed using a computer programme.

Randomisation will be carried out by the Coordinating Centre.

Both groups will be followed up by telephone at three (visit 1) and six months (visit 2) and at one-year (visit 3) and two-year(visit 4).

During the follow up visits brief structured smoking cessation advice will be reinforced in the control group but the spirometric results will not be discussed. In the intervention group brief structured smoking cessation advice will be reinforced with a detailed structured reminder discussion of the results obtained from the spyrometry of visit 0.

Follow up visits 1 and 2 will be undertaken by telephone and the patients will be asked about their smoking habit and will be given a brief questionnaire.

One month before visits 3 and 4 both groups will undergo the same series of tests performed prior to visit 0 with the exception of the peak expiratory flow rate. Spirometry will be done only in the intervention group.

On visits 3 and 4, the same intervention will be done. On both visits 3 and 4 all the participants who report smoking withdrawal will undergo the carbon monoxide test.