• Sarwar Zubairi Ali Bin AB Aga Khan University, Karachi., Maryam Hassan, Talha Shahzad, Sajjad Sarwar, Aamir Abbas, Huzaifa Ahmad, and Muhammad Irfan.
• Aga Khan University, Karachi.
• J Pak Med Assoc. 2017 Jul 1; 67 (7): 1065-1069.

ObjectiveTo determine the clinical features and patterns of interstitial lung disease.MethodsThis retrospective study was conducted at the Aga Khan University Hospital, Karachi, and comprised record of patients diagnosed with interstitial lung disease from January 2005 to December 2015. All patients aged 16 years and above diagnosed with interstitial lung disease on the basis of clinical features, radiological features on high-resolution computed tomography of the chest, and lung biopsies were included. SPSS 19 was used for data analysis.ResultsOf the 537 patients, 324(60.3%) of the participants were females. The overall mean age was 60.5±14.9 years. The most common co-morbid condition was diabetes mellitus in 72(13.4%) patients, followed by hypertension in 48(8.9%) and ischaemic heart disease in 21(3.9%). The most common interstitial lung disease was idiopathic pulmonary fibrosis in 217(40.4%) patients, followed by non-specific interstitial pneumonia in 106(19.7%), sarcoidosis in 82(15.3%) and connective tissue disease-related interstitial lung disease in 56(10.4%) patients.ConclusionsIdiopathic pulmonary fibrosis was found to be the most common interstitial lung disease subtype followed by non-specific interstitial pneumonia, sarcoidosis and connective tissue disease-related-interstitial lung disease.

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