Table 4

MID estimates and 95% CIs for the ESS based on anchors with correlations≥0.3

Anchor instrumentNo of patients exceeding the anchor MID (%)RCT combination
1. autoCPAP+MOSAIC2. autoCPAP+Provent
0–3 months (autoCPAP)
0–6 months (MOSAIC)
n=572
0–3 months (autoCPAP)
0–2 weeks (Provent)
n=264
FOSQ total157 (59)−3.03 (–3.71 to −2.35)
FOSQ general productivity99 (38)−4.21 (–5.05 to −3.37)
FOSQ social outcome108 (41)−4.00 (–4.78 to −3.21)
FOSQ activity level137 (51)−3.62 (–4.40 to −2.84)
FOSQ vigilance134 (51)−3.45 (–4.19 to −2.72)
SF-36 energy/vitality398 (70)−1.74 (–2.18 to −1.30)
SF-36 physical component204 (37)−2.66 (–3.19 to −2.13)
  • ESS, Epworth Sleepiness Scale; FOSQ, Functional Outcomes of Sleep Questionnaire; MID, minimal important difference; RCT, randomised controlled trial; SF-36, 36-Item Short  Form Health Survey.