Nasal Dilators (Breathe Right Strips and NoZovent) for Snoring and OSA: A Systematic Review and Meta-Analysis

Table 1

General characteristics and quality criteria of included studies. Quality assessment of case series studies checklist from National Institute for Health and Clinical Excellence (NICE). (1) Was the case series collected in more than one center, that is, multicenter study? (2) Is the hypothesis/aim/objective of the study clearly described? (3) Are the inclusion and exclusion criteria (case definition) clearly reported? (4) Is there a clear definition of the outcomes reported? (5) Were data collected prospectively? (6) Is there an explicit statement that patients were recruited consecutively? (7) Are the main findings of the study clearly described? (8) Are outcomes stratified (e.g., by abnormal results, disease stage, and patient characteristics)?

	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
Amaro et al., 2012	No	Yes	Yes	Yes	Yes	No	Yes	No
Bahammam et al., 1999	No	Yes	Yes	Yes	Yes	Yes	Yes	No
Djupesland et al., 2001	No	Yes	No	Yes	Yes	No	Yes	Yes
Gosepath et al., 1999	No	Yes	No	Yes	No	No	Yes	No
Hoffstein et al., 1993	No	Yes	No	Yes	Yes	No	Yes	No
Hoijer et al., 1992	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Kerr et al., 1992	No	Yes	No	Yes	Yes	No	Yes	No
Liistro et al., 1998	No	Yes	No	Yes	Yes	No	Yes	Yes
Metes et al., 1992	No	Yes	No	Yes	Yes	Yes	Yes	No
Pevernagie et al., 2000	No	Yes	Yes	Yes	Yes	No	Yes	No
Redline et al. 1998	No	Yes	Yes	Yes	Yes	No	Yes	Yes
Schonhofer et al., 2000	No	Yes	Yes	Yes	Yes	Yes	Yes	No
Todorova et al., 1998	No	Yes	Yes	Yes	Yes	No	Yes	Yes
Wenzel et al., 1997	No	Yes	Yes	No	No	Yes	Yes	No