• A simple algorithm for the identification of clinical COPD phenotypes 

      Burgel, Pierre-Régis; Paillasseur, Jean-Louis; Janssens, Wim; Piquet, Jacques; Ter Riet, Gerben; Garcia-Aymerich, Judith; Cosio, Borja; Bakke, Per S.; Puhan, Milo A.; Langhammer, Arnulf; Alfageme, Inmaculada; Almagro, Pere; Ancochea, Julio; Celli, Bartolomé R.; Casanova, Ciro; de-Torres, Juan P.; Decramer, Marc; Echazarreta, Andrés; Esteban, Cristobal; Punter, Rosa Mar Gomez; Han, Meilan K.; Johannessen, Ane; Kaiser, Bernhard; Lamprecht, Bernd; Lange, Peter; Leivseth, Linda; Marin, Jose M.; Martin, Francis; Martinez-Camblor, Pablo; Miravitlles, Marc; Oga, Toru; Ramírez, Ana Sofia; Sin, Don D.; Sobradillo, Patricia; Soler-Cataluña, Juan J.; Turner, Alice M.; Rivera, Francisco Javier Verdu; Soriano, Joan B.; Roche, Nicolas (Journal article; Peer reviewed, 2017)
      This study aimed to identify simple rules for allocating chronic obstructive pulmonary disease (COPD) patients to clinical phenotypes identified by cluster analyses. Data from 2409 COPD patients of French/Belgian COPD ...
    • General and abdominal obesity and incident asthma in adults: the HUNT study 

      Brumpton, Ben Michael; Langhammer, Arnulf; Romundstad, Pål Richard; Chen, Yue; Mai, Xiao-Mei (Journal article; Peer reviewed, 2013)
      Measures of body mass index (BMI) and waist circumference define general obesity and abdominal obesity respectively. While high BMI has been established as a risk factor for asthma in adults, waist circumference has seldom ...
    • Global Lung Function Initiative 2012 reference equations for spirometry in the Norwegian Population 

      Langhammer, Arnulf; Johannessen, Ane; Holmen, Turid Lingaas; Melbye, Hasse; Stanojevic, Sanja; Lund, May Brit; Melsom, Morten Nissen; Bakke, Per S.; Quanjer, Philip (Journal article; Peer reviewed, 2016)
      We studied the fit of the Global Lung Function Initiative (GLI) all-age reference values to Norwegians, compared them with currently used references (European Community for Steel and Coal (ECSC) and Zapletal) and estimated ...
    • Metabolic syndrome and incidence of asthma in adults: the HUNT study 

      Brumpton, Ben Michael; Camargo, Carlos; Romundstad, Pål Richard; Langhammer, Arnulf; Chen, Yue; Mai, Xiao-Mei (Journal article; Peer reviewed, 2013)
      Obesity is a risk factor for incident asthma in adults, and obesity is a major component of metabolic syndrome. This study aimed to explore the associations of metabolic syndrome and its components with the cumulative ...
    • Serum 25-hydroxyvitamin D level, smoking and lung function in adults: the HUNT Study 

      Larose, Tricia L; Brumpton, Ben Michael; Langhammer, Arnulf; Camargo, Carlos A; Chen, Yue; Romundstad, Pål Richard; Mai, Xiao-Mei (Journal article; Peer reviewed, 2015)
      The association between serum 25-hydroxyvitamin D (25(OH)D) level and lung function changes in the general population remains unclear. We conducted cross-sectional (n=1220) and follow-up (n=869) studies to investigate ...
    • Serum 25-hydroxyvitamin D levels and lung function in adults with asthma: the HUNT Study 

      Larose, Tricia L; Langhammer, Arnulf; Chen, Yue; Camargo, Carlos A; Romundstad, Pål Richard; Mai, Xiao-Mei (Journal article; Peer reviewed, 2015)
      The association between vitamin D status and lung function in adults with asthma remains unclear. We studied this cross-sectional association and possible modification by sex and allergic rhinitis in 760 adults (aged ...
    • Serum 25-hydroxyvitamin D levels and risk of lung cancer and histologic types: a Mendelian randomization analysis of the HUNT study 

      Sun, Yi-Qian; Brumpton, Ben Michael; Bonilla, Carolina; Lewis, Sarah J.; Burgess, Stephen; Skorpen, Frank; Chen, Yue; Nilsen, Tom Ivar Lund; Romundstad, Pål Richard; Mai, Xiao-Mei (Journal article; Peer reviewed, 2018)
      We aimed to investigate potential causal associations between serum 25-hydroxyvitamin D [25(OH)D] levels and incidence of lung cancer overall and histologic types. We performed a Mendelian randomization (MR) analysis using ...