Research Article
The Expression of IL-6, TNF-α, and MCP-1 in Respiratory Viral Infection in Acute Exacerbations of Chronic Obstructive Pulmonary Disease
Table 1
Clinical characteristics of AECOPD.
| | Category/parameter | Total () |
| | Sociodemographic data | | | Age mean value ± SD, years | | | Male (%) | 62 (62%) | | Current smokers (%) | 38 (38%) | | Current or former smokers (%) | 97 (97%) | | Influenza vaccination (%) | 41 (41%) | | Acute COPD exacerbation in last year (%) | 75 (75%) | | Duration of COPD | | | Hospitalization in last year (%) | 11 (11%) | | COPD severity as per GOLD n (%) | | | GOLD I (mild) | 4 (4%) | | GOLD II (moderate) | 39 (39%) | | GOLD III (severe) | 52 (52%) | | GOLD IV (very severe) | 5 (5%) |
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