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The three peaks in age distribution of females with pneumothorax: a nationwide database study in Japan

The three peaks in age distribution of females with pneumothorax: a nationwide database study in... AbstractOBJECTIVESWomen are the minority among patients with spontaneous pneumothorax, but catamenial pneumothorax (CP) is unique to them. We aimed to clarify the clinical characteristics of female patients with spontaneous pneumothorax using a nationwide database.METHODSMedical records from the Japanese Diagnosis Procedure Combination database for inpatients with pneumothorax between July 2010 and March 2016 were retrospectively reviewed. Age, underlying diseases, body mass index, smoking status, laterality, number of hospitalizations and treatments were studied.RESULTSWe identified 157 087 patients with pneumothorax, including 27 716 (17.6%) women and 129 371 (82.4%) men. The age distribution of female patients with pneumothorax had 3 peaks: 18 years, around 40 years and 80 years; male patients had 2 peaks: 18 years and 79 years. We identified 873 patients with CP; this number was not sufficient to account for the female-specific peak around 40 years. The characteristics of female patients of reproductive age were significantly different between those with and without CP. The patients with CP were older (average age: 37.9 ± 7.7 years vs 31.3 ± 11.5 years, P < 0.001), were right side dominant (right: 64.9%, left: 6.5%), had more hospitalizations (average number of hospitalizations: 1.6 ± 0.9 vs 1.3 ± 0.6, P < 0.001) and had more frequently undergone surgery (57.1% vs 37.3%, P < 0.001).CONCLUSIONSThe age distribution of women with pneumothorax had 3 distinct peaks while that of men had 2. CP has different characteristics from other types of pneumothorax, thus requiring different treatment strategies for women of reproductive age. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png European Journal of Cardio-Thoracic Surgery Oxford University Press

The three peaks in age distribution of females with pneumothorax: a nationwide database study in Japan

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References (23)

Publisher
Oxford University Press
Copyright
© The Author(s) 2018. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.
ISSN
1010-7940
eISSN
1873-734X
DOI
10.1093/ejcts/ezy081
Publisher site
See Article on Publisher Site

Abstract

AbstractOBJECTIVESWomen are the minority among patients with spontaneous pneumothorax, but catamenial pneumothorax (CP) is unique to them. We aimed to clarify the clinical characteristics of female patients with spontaneous pneumothorax using a nationwide database.METHODSMedical records from the Japanese Diagnosis Procedure Combination database for inpatients with pneumothorax between July 2010 and March 2016 were retrospectively reviewed. Age, underlying diseases, body mass index, smoking status, laterality, number of hospitalizations and treatments were studied.RESULTSWe identified 157 087 patients with pneumothorax, including 27 716 (17.6%) women and 129 371 (82.4%) men. The age distribution of female patients with pneumothorax had 3 peaks: 18 years, around 40 years and 80 years; male patients had 2 peaks: 18 years and 79 years. We identified 873 patients with CP; this number was not sufficient to account for the female-specific peak around 40 years. The characteristics of female patients of reproductive age were significantly different between those with and without CP. The patients with CP were older (average age: 37.9 ± 7.7 years vs 31.3 ± 11.5 years, P < 0.001), were right side dominant (right: 64.9%, left: 6.5%), had more hospitalizations (average number of hospitalizations: 1.6 ± 0.9 vs 1.3 ± 0.6, P < 0.001) and had more frequently undergone surgery (57.1% vs 37.3%, P < 0.001).CONCLUSIONSThe age distribution of women with pneumothorax had 3 distinct peaks while that of men had 2. CP has different characteristics from other types of pneumothorax, thus requiring different treatment strategies for women of reproductive age.

Journal

European Journal of Cardio-Thoracic Surgery – Oxford University Press

Published: Sep 1, 2018

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