Table 4.

Summary of studies reporting polysomnography outcomes

Author year	Data source, territory, population	N	Age	Polysomnography outcome data reported
Kapur 2019 [42]	Children attending the Children’s Health Queensland, Brisbane, Australia	25	Children	Median total AHI (IQR) from a cross-sectional study
	Types 1–3 SMA			•Type 1 SMA: 7.6 (4.3)
				•Type 2 SMA: 2.9 (2.4)
				•Type 3 SMA: 3.1 (3.5)
				•All patients: 3.1 (4.9)
				Median REM AHI (IQR) from a cross-sectional study
				•Type 1 SMA: 20.0 (45.7)
				•Type 2 SMA: 5.8 (9.9)
				•Type 3 SMA: 4.6 (6.4)
				•All patients: 5.8 (9.1)
				Full diagnostic polysomnography was performed by standard methods

Abbreviations: AHI = apnea–hypopnea index; IQR = interquartile range; REM = rapid eye movement; SMA = spinal muscular atrophy.