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

Table 2

Demographic, polysomnographic, and sleepiness data pretreatment and during nasal dilator treatment. AI = apnea index; AHI = apnea-hypopnea index; BMI = body mass index in kg/m²; ESS = Epworth sleepiness scale; low O₂ = lowest oxygen saturation; = number; pts = patients; = external nasal dilators, = median reported, and = respiratory disturbance index.

First author, year		Age	BMI	Pre-ND; AHI	ND; AHI	Pre-ND; AI	ND; AI	Pre-ND; low O2	ND; low O2	Snoring; index	Snoring; Index
Amaro,	12									—	—
Djupesland,	18					—	—			—	—
Pevernagie,	12							—	—	—	—
Schonhofer,	26
Gosepath,	26	52; (31–75)	—	31.7	26.3	22.8	19.8	—	—	—	—
Bahammam,	18							—	—	—	—
Todorova,	30	36.5	25.9	3.5; (1.6, 9.1)	3.1; (1.3, 9.4)	16.5; (5.0, 46.0)	14.5; (5.0, 57.0)	—	—	89.1; (4.0, 142.5)	7.1; (0, 119.5)
Liistro,	10			—	—
Redline,	46					—	—			—	—
Wenzel,	50		30	—	—
Hoffstein, 1993	15
Metes, 1992	10	—	—
Hoijer, 1992	11	47; (32–65)	—	—	—					—	—
Kerr, 1992	10	51; (29–68)	32; (25.9–38.9)			—	—			—	—
Total	294	50.5 ± 8.3	30.0 ± 6.2	28.7 ± 24.0  (147 pts)	27.4 ± 23.3  (147 pts)	23.4 ± 25.7  (190 pts)	21.0 ± 20.3  (190 pts)	78.7 ± 13.4  (208 pts)	79.1 ± 12.4  (208 pts)	148.2 ± 268.2  (111 pts)	96.3 ± 178.2  (111 pts)