TABLE 2

Analysis of Alarms and LOSI Events Not Leading to Alarm State by Activity Level

Alarms for “Sensor Not Connected”Alarms for “Spo2 Low”Events of “Spo2 Decrease >4%”Events of “Missing Values in Spo2
Activity LevelWireless Pox, Median (IQR)Control Pox, Median (IQR)PWireless Pox, Median (IQR)Control Pox, Median (IQR)PWireless Pox, Median (IQR)Control Pox, Median (IQR)PWireless Pox, Median (IQR)Control Pox, Median (IQR)P
No. alarms10 (0–0)0 (0–1).0010 (0–0)0 (0–1).0010 (0–0)0 (0–0).110 (0–0)0 (0–1).018
20 (0–0)0.5 (0–1).0100 (0–0)0 (0–2).0090 (0–1)0 (0–1).290 (0–0)0 (0–1).27
30 (0–0)0 (0–1)<.0011 (0–2)0 (0–2).81.5 (0–4)3 (1–5).340 (0–0)0 (0–0).6
40 (0–0)0 (0–1).0180 (0–1)0 (0–2).871 (0–4)3 (1–7)<.0010 (0–1)0 (0–1).95
Duration of alarm, s10 (0–0)0 (0–24)<.0010 (0–0)0 (0–4)<.0010 (0–0)0 (0–0).0470 (0–0)0 (0–26)<.001
20 (0–0)1 (0–34)<.0010 (0–0)0 (0–19).0100 (0–2)0 (0–2).360 (0–0)0 (0–23).047
30 (0–0)0 (0–14)<.0012 (0–23)0 (0–17).658 (0–22)10 (2–20).490 (0–0)0 (0–0).86
40 (0–0)0 (0–16).0090 (0–13)0 (0–15).962 (0–12)17 (2–31)<.0010 (0–10)0 (0–19).24
Time in alarm, %10 (0–0)0 (0–11)<.0010 (0–0)0 (0–2)<.0010 (0–0)0 (0–0).0940 (0–0)0 (0–13)<.001
20 (0–0)0.3 (0–8)<.0010 (0–0)0 (0–5).0090 (0–0.6)0 (0–0.5).310 (0–0)0 (0–5).043
30 (0–0)0 (0–4)<.0010.56 (0–5)0 (0–4).962 (0–6)3 (0.5–6).370 (0–0)0 (0–0)>.99
40 (0–0)0 (0–4).0080 (0–4)0 (0–5).890.6 (0–3)5 (0.6–8)<.0010 (0–2)0 (0–5).23
  • A P value <.05 is considered statistically significant. IQR, interquartile range.