. 2020 May 15;16(5):785–801. doi: 10.5664/jcsm.8318

Table 3.

Baseline and posttreatment AHI.

Study	OSA at Baseline	Intervention Groups			Control Groups
Study	Mild OSA (AHI, 5–15 events/h); moderate OSA (AHI, 15–30 events/h); severe OSA (AHI > 30 events/h)	Baseline AHI, events/h	After TX, events/h	% Change in AHI	Baseline AHI, events/h	After TX, events/h	% Change in AHI
Diaferia et al, 2013²⁵ and 2017²²	26% mild	28.0 ± 22.7	13.9 ± 18.5	−50.4	27.8 ± 20.3	30.6 ± 21.8	10.1
	32% moderate
	42% severe
Guimaraes et al, 2009¹⁴	Moderate OSA	22.4 ± 4.8	13.7 ± 8.5	−38.8	22.4 ± 5.4	25.9 ± 8.5	15.6
Ieto et al, 2015²¹	Mild to moderate OSA	22.4 ± 4.89	19.2 ± 6.44	−24.4%	25.7 ± 5.7	22.8 ± 7.33	−11.3
Kuo et al, 2017¹⁶	Mild to moderate OSA	16.5 ± 7.93	9.9 ± 3.56	−50.0	14.6 ± 5.2	15.18 ± 3.15	4.0
	n = 14 mild
	n = 11 moderate
Puhan et al, 2006²⁷	Moderate OSA	22.3 ± 5.0	11.6 ± 8.1	−48.0	19.9 ± 4.7	15.4 ± 9.8	−22.6
Villa et al, 2015²⁶	Pediatric participants: AHI > 5 events/h for moderate-severe OSA	4.87 ± 2.96	1.84 ± 1.36	−62.2	4.56 ± 3.22	4.11 ± 2.73	−9.9
Vranish & Bailey et al, 2016²⁸	Mild to severe	21.9 ± 4.4	26.4 ± 6.4	20.5	29.9 ± 8.9	25.0 ± 8.3	−16.4

AHI at baseline and posttreatment reported by the included studies plus percent change in AHI (calculated by the authors). Data are shown as means ± standard deviation. AHI = apnea-hypopnea index, OSA = obstructive sleep apnea, TX = treatment.