RT Journal Article SR Electronic T1 Disease Course of Lower Respiratory Tract Infection With a Bacterial Cause JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP 534 OP 539 DO 10.1370/afm.1974 VO 14 IS 6 A1 Teepe, Jolien A1 Broekhuizen, Berna D. L. A1 Loens, Katherine A1 Lammens, Christine A1 Ieven, Margareta A1 Goossens, Herman A1 Little, Paul A1 Butler, Christopher C. A1 Coenen, Samuel A1 Godycki-Cwirko, Maciek A1 Verheij, Theo YR 2016 UL http://www.annfammed.org/content/14/6/534.abstract AB PURPOSE Bacterial pathogens are assumed to cause an illness course different from that of nonbacterial causes of acute cough, but evidence is lacking. We evaluated the disease course of lower respiratory tract infection (LRTI) with a bacterial cause in adults with acute cough.METHODS We conducted a secondary analysis of a multicenter European trial in which 2,061 adults with acute cough (28 days’ duration or less) were recruited from primary care and randomized to amoxicillin or placebo. For this analysis only patients in the placebo group (n = 1,021) were included, reflecting the natural course of disease. Standardized microbiological and serological analyses were performed at baseline to define a bacterial cause. All patients recorded symptoms in a diary for 4 weeks. The disease course between those with and without a bacterial cause was compared by symptom severity in days 2 to 4, duration of symptoms rated moderately bad or worse, and a return consultation.RESULTS Of 1,021 eligible patients, 187 were excluded for missing diary records, leaving 834 patients, of whom 162 had bacterial LRTI. Patients with bacterial LRTI had worse symptoms at day 2 to 4 after the first office visit (P = .014) and returned more often for a second consultation, 27% vs 17%, than those without bacterial LRTI (P = .004). Resolution of symptoms rated moderately bad or worse did not differ (P = .375).CONCLUSIONS Patients with acute bacterial LRTI have a slightly worse course of disease when compared with those without an identified bacterial cause, but the relevance of this difference is not meaningful.