Table 12:

Sleep Quality, De Andres et al

MOS-SS Score, Mean ± SD	10-kHz High-Frequency SCS	Conventional SCS	Differencea
Somnolence
Baseline	51.79 ± 23.04	53.10 ± 28.87	−1.31
Mean change, baseline to 12 months	−15.4 ± 21.65	−10.0 ± 27.06	—
Sleep Disturbance
Baseline	29.66 ± 25.13	27.20 ± 25.24	2.46
Mean change, baseline to 12 months	−11.59 ± 24.92	−10.12 ± 27.95	—
Sleep Quantity
Baseline	5.25 ± 1.17	5.03 ± 1.37	0.22
Mean change, baseline to 12 months	−0.48 ± 1.40	−0.41 ± 1.63	—
Awake Short of Breath
Baseline	57.69 ± 31.15	57.93 ± 34.37	−0.24
Mean change, baseline to 12 months	−19.23 ± 35.09	−7.07 ± 43.16	—
Snoring
Baseline	43.08 ± 38.65	34.48 ± 36.12	8.6
Mean change, baseline to 12 months	−8.46 ± 31.07	−5.71 ± 24.25	—
Sleep Adequacy
Baseline	27.42 ± 24.51	31.03 ± 26.23	−3.61
Mean change, baseline to 12 months	−12.58 ± 34.16	−6.83 ± 38.63	—

Abbreviations: MOS-SS, Medical Outcomes Study-Sleep Scale; SCS, spinal cord stimulation; SD, standard deviation.

^aCrude differences calculated for this health technology assessment.

Source: De Andres et al, 2017.²⁹