[Clinical features of respiratory tuberculosis and diagnosis delay].
OBJECTIVE: To make a descriptive analysis of the clinical characteristics of patients with pulmonary tuberculosis and find the time of diagnostic delay. DESIGN: Retrospective study. SETTING: Autonomous Community of Navarre. PATIENTS: 317 cases of pulmonary tuberculosis diagnosed between January 1 1993 and June 30 1996. RESULTS: The most commonly observed symptom was coughing (76.8%), followed by expectoration (63.8%) and high temperature (60.3%). The high percentages of high temperature, asthenia, anorexia and weight loss in HIV-infected patients stood out. The mean period of diagnostic delay was 36.9 to 58.5 days, with a median of 15 days. For 76.8% of patients the delay in diagnosis was under a month. CONCLUSIONS: Early diagnosis is essential in tuberculosis control, especially in cases transmitted by bacilli, since these are highly contagious for months.