Table 4 Outcomes of Study Interventions

Number of subjects

21

21

–

SpO₂ Alarms (#/hour)

1.6 (0.8–2.6)

5.2 (3.0–6.6)

< 0.001

SpO₂/all Alarms (%)

47 (30–75)

75 (64–91)

< 0.001

Audible alarm (% time)

6.9 (2.9–14.3)

11.7 (10.5–16.4)

0.034

 Total (% time)

0.2 (0.1–0.4)

0.3 (0.1–0.8)

ns

 Episodes> 1 min (#/24-h)

1.2 (0–2.2)

1.1 (0.3–2.2)

ns

 Episodes> 3 min (#/24-h)

0 (0–0.4)

0 (0–0.5)

ns

 Total (% time)

0.2 (0–0.2)

0.2 (0.1–0.5)

ns

 Episodes > 1 min (#/24-h)

0.7 (0–1.7)

0.5 (0–1.7)

ns

 Episodes > 3 min (#/24-h)

0 (0–0)

0 (0–0)

ns