Browsing by Author "Kaiser, Bernhard"
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- Overdiagnosis of COPD in subjects with unobstructed spirometryPublication . Sator, Lea; Horner, Andreas; Studnicka, Michael; Lamprecht, Bernd; Kaiser, Bernhard; McBurnie, Mary Ann; Buist, A. Sonia; Gnatiuc, Luisa; Mannino, David M.; Janson, Christer; Bateman, Eric D.; Burney, Peter; Zhong, NanShan; Liu, Shengming; Lu, Jiachun; Ran, Pixin; Wang, Dali; Zheng, Jingping; Zhou, Yumin; Kocabaş, Ali; Hancioglu, Attila; Hanta, Ismail; Kuleci, Sedat; Turkyilmaz, Ahmet Sinan; Umut, Sema; Unalan, Turgay; Studnicka, Michael; Dawes, Torkil; Lamprecht, Bernd; Sator, Lea; Bateman, Eric; Jithoo, Anamika; Adams, Desiree; Barnes, Edward; Freeman, Jasper; Hayes, Anton; Hlengwa, Sipho; Johannisen, Christine; Koopman, Mariana; Louw, Innocentia; Ludick, Ina; Olckers, Alta; Ryck, Johanna; Storbeck, Janita; Gislason, Thorarinn; Benedikdtsdottir, Bryndis; Jörundsdottir, Kristin; Gudmundsdottir, Lovisa; Gudmundsdottir, Sigrun; Gundmundsson, Gunnar; Nizankowska-Mogilnicka, Ewa; Frey, Jakub; Harat, Rafal; Mejza, Filip; Nastalek, Pawel; Pajak, Andrzej; Skucha, Wojciech; Szczeklik, Andrzej; Twardowska, Magda; Welte, Tobias; Bodemann, Isabelle; Geldmacher, Henning; Schweda-Linow, Alexandra; Gulsvik, Amund; Endresen, Tina; Svendsen, Lene; Tan, Wan C.; Wang, Wen; Mannino, David M.; Cain, John; Copeland, Rebecca; Hazen, Dana; Methvin, Jennifer; Dantes, Renato B.; Amarillo, Lourdes; Berratio, Lakan U.; Fernandez, Lenora C.; Francisco, Norberto A.; Garcia, Gerard S.; de Guia, Teresita S.; Idolor, Luisito F.; Naval, Sullian S.; Reyes, Thessa; Roa, Camilo C.; Sanchez, Ma. Flordeliza; Simpao, Leander P.; Jenkins, Christine; Marks, Guy; Bird, Tessa; Espinel, Paola; Hardaker, Kate; Toelle, Brett; Burney, Peter G.J.; Amor, Caron; Potts, James; Tumilty, Michael; McLean, Fiona; Wouters, E.F.M.; Wesseling, G.J.; Bárbara, Cristina; Rodrigues, Fátima; Dias, Hermínia Brites; Cardoso, João; Almeida, João; Matos, Maria João; Simão, Paula; Santos, Moutinho; Ferreira, Reis; Janson, Christer; Olafsdottir, Inga Sif; Nisser, Katarina; Spetz-Nyström, Ulrike; Hägg, Gunilla; Lund, Gun-Marie; Jõgi, Rain; Laja, Hendrik; Ulst, Katrin; Zobel, Vappu; Lill, Toomas-Julius; Koul, Parvaiz A.; Malik, Sajjad; Hakim, Nissar A.; Khan, Umar Hafiz; Chowgule, Rohini; Shetye, Vasant; Raphael, Jonelle; Almeda, Rosel; Tawde, Mahesh; Tadvi, Rafiq; Katkar, Sunil; Kadam, Milind; Dhanawade, Rupesh; Ghurup, Umesh; Harrabi, Imed; Denguezli, Myriam; Tabka, Zouhair; Daldoul, Hager; Boukheroufa, Zaki; Chouikha, Firas; Khalifa, Wahbi Belhaj; Idolor, Luisito F.; de Guia, Teresita S.; Francisco, Norberto A.; Roa, Camilo C.; Ayuyao, Fernando G.; Tady, Cecil Z.; Tan, Daniel T.; Banal-Yang, Sylvia; Balanag, Vincent M.; Reyes, Maria Teresita N.; Dantes, Renato B.; Juvekar, Sanjay; Hirve, Siddhi; Sambhudas, Somnath; Chaidhary, Bharat; Tambe, Meera; Pingale, Savita; Umap, Arati; Umap, Archana; Shelar, Nitin; Devchakke, Sampada; Chaudhary, Sharda; Bondre, Suvarna; Walke, Savita; Gawhane, Ashleshsa; Sapkal, Anil; Argade, Rupali; Gaikwad, Vijay; Salvi, Sundeep; Brashier, Bill; Londhe, Jyoti; Madas, Sapna; Obaseki, Daniel; Erhabor, Gregory; Awopeju, Olayemi; Adewole, OlufemiBackground: There are several reports on the underdiagnosis of COPD, while little is known about COPD overdiagnosis and overtreatment. We describe the overdiagnosis and the prevalence of spirometrically defined false-positive COPD, as well as their relationship with overtreatment across 23 population samples in 20 countries participating in the BOLD Study between 2003 and 2012. Methods: A false-positive diagnosis of COPD was considered when participants reported a doctor's diagnosis of COPD, but postbronchodilator spirometry was unobstructed (FEV1/FVC > LLN). Additional analyses were performed using the fixed ratio criterion (FEV1/FVC < 0.7). Results: Among 16,177 participants, 919 (5.7%) reported a previous medical diagnosis of COPD. Postbronchodilator spirometry was unobstructed in 569 subjects (61.9%): false-positive COPD. A similar rate of overdiagnosis was seen when using the fixed ratio criterion (55.3%). In a subgroup analysis excluding participants who reported a diagnosis of "chronic bronchitis" or "emphysema" (n = 220), 37.7% had no airflow limitation. The site-specific prevalence of false-positive COPD varied greatly, from 1.9% in low- to middle-income countries to 4.9% in high-income countries. In multivariate analysis, overdiagnosis was more common among women, and was associated with higher education; former and current smoking; the presence of wheeze, cough, and phlegm; and concomitant medical diagnosis of asthma or heart disease. Among the subjects with false-positive COPD, 45.7% reported current use of respiratory medication. Excluding patients with reported asthma, 34.4% of those with normal spirometry still used a respiratory medication. Conclusions: False-positive COPD is frequent. This might expose nonobstructed subjects to possible adverse effects of respiratory medication.