Comparative Study of Clinical Characteristics Between Patients With Unknown Origin Etiological Factor and Ordinary Pneumonia

Objective To investigate and comparatively study the clinical characteristics between patients with unknown origin etiological factor and ordinary pneumonia.Methods Eighty-five pneumonia patients with unknown origin etiological factor and 108 patients with ordinary pneumonia were retrospectively studied.The data of epidemiology,clinical characteristics,laboratory tests and X-ray between the two groups were compared.Results The rates of patients with short breath and systemic ache in the pneumonia with unknown origin etiological factor group were higher than those in the ordinary pneumonia group(P0.01).There were significant differences in average fever duration(P0.05),hypoxemia(31/85 vs 22/108,χ2=6.19,P0.05),lobes affected(1.8±1.2 vs 1.03±0.86,t=5.18,P0.01)between patients with unknown origin etiological factor and ordinary pneumonia.Conclusions Comparing with the patients with ordinary pneumonia,the pneumonia patients with unknown origin etiological factor show the more chances of history of engaging in poultry cultivation,and their symptoms of fever,short breath,systemic ache,hypoxemia and larger scale of foci in lungs are severer too.