SUMMARY
Objective of this study to assess the underdiagnosis of chronic obstructive pulmonary disease (COPD) and identify possible factors associated with it. Materials and methods. The selection of patients in the polyclinic was carried out during spontaneous routine or planned visits, as a result of which 122 patients with obstructive ventilation disorders were selected and invited for further examination. The control group consisted of 20 volunteers without COPD and other pulmonary and severe somatic diseases. Analyzed indicators such as gender, age, smoking factor, severity of COPD. Spirometry was performed using a portable ultrasonic spirometer. Results. The average age of patients with COPD was 55.9±4.4 years, men accounted for 59.0%, women - 41.0%. At the time of the study, smokers accounted for 57.4%. The results of spirometry were 41.8% of patients, 58.2% of patients did not undergo spirometry. After spirometry, the severity of COPD was overestimated: stage I was classified in 36.1% of patients, stage II - in 32.0%, stage III - in 6.5% of patients. In 25.4% of cases, the diagnosis was overestimated after spirometry. In the age group of 40-45 years, the chance to find the risk of developing COPD in the main group was 0.208, in the control group – 0.250 (p>0.05), in the group of 46-49 years: 0.326 and 0.333 (p>0.05), 50 -55 years old: 0.402 and 0.538 (p>0.05), 56-60 years old: 0.419 and 0.250 (p>0.05), respectively. In patients aged 56-60 years, OR=1.674 (95% CI 0.523-5.356, p<0.05). In the smokers group, OR=1.645 (95% CI 0.636-4.260, p<0.05). The chance of finding a risk factor in smokers in the main group was 1.346, in the control group - 0.818 (p<0.05). Conclusion. Identification of patients at risk is feasible in the practice of family medicine. The use of spirometry contributes to the early detection of undiagnosed COPD and the correct classification of the degree of the disease.
Keywords: chronic obstructive pulmonary disease, diagnosis, spirometry, odds ratio, primary health care

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