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BACKGROUND:

There are relatively few epidemiological studies on interstitial lung disease (ILD) worldwide.

OBJECTIVE:

To report the incident cases of ILD and compare our data with reports from other populations.

METHODS:

Newly diagnosed ILDs were prospectively collected at a single tertiary care hospital from January 2008 to December 2011. Detailed demographic and clinical data were collected at the time of diagnosis, along with the results from diagnostic procedures, including high-resolution computed tomography (HRCT), serological tests, bronchoalveolar lavage (BAL), transbronchial lung biopsy, endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) and surgical lung biopsy.

RESULTS:

A total of 330 cases were included. The mean age was 55.4±14.9 years. There was a slight predominance of females (202; 61.2%), and the male-to-female ratio was 1: 1.37. The most frequent …