Nikkonen, Sami http://orcid.org/0000-0003-0615-4118
Töyräs, Juha
Mervaala, Esa
Myllymaa, Sami
Terrill, Philip
Leppänen, Timo
Funding for this research was provided by:
Kuopion Yliopistollinen Sairaala (5041754, 5041768, 5041754,5041755, 5041755)
Academy of Finland (313697, 313697)
Hengityssairauksien Tutkimussäätiö
Instrumentariumin Tiedesäätiö
Kuopion seudun hengityssätiö
National Health and Medical Research Council (1064163)
Article History
Received: 21 January 2019
Revised: 28 May 2019
Accepted: 27 June 2019
First Online: 11 July 2019
Compliance with ethical standards
:
: Nikkonen has received funding from the Research Committee of the Kuopio University Hospital Catchment Area (project number 5041754), from the Academy of Finland (grant number 313697), and from the Research Foundation of the Pulmonary Diseases. Töyräs has received funding from the Academy of Finland (grant number 313697) and from the Research Committee of the Kuopio University Hospital Catchment Area (project number 5041768). Mervaala has received funding from the Research Committee of the Kuopio University Hospital Catchment Area (project numbers 5041754, 5041755). Myllymaa has nothing to disclose. Terrill has received funding from the Australian NHMRC (grant number 1064163). Leppänen has received funding from the Research Committee of the Kuopio University Hospital Catchment Area (project number 5041755), from the Instrumentarium Science Foundation, from the Research Foundation of the Pulmonary Diseases, and from the Respiratory Foundation of Kuopio Region. The authors declare no other potential competing interest.
: Ethics Committee of the Hospital District of Northern Savo, Kuopio, Finland, approved the collection and analysis of the polygraphic recordings (127/2004 and 24/2013). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent by the patients was not required.