Table 3

Accuscreen recordings in the right and left ear (SIDS vs controls)

UnitSIDSControlsP value
NMedian (IQR)NMedian (IQR)
Right ear
 DurationSeconds1220 (18–38.5)7723 (11–37.5)0.98
 Artefact rate*%112 (0–13)757 (1–19)0.36
 Stimulus stability†%11100 (100–100)75100  (100–100)0.62
 Probe fit%842 (20.5–72.25)7549 (28–58)0.83
Left ear
 DurationSeconds1210.5 (6.75–15.5)7716 (11–38)0.03
 Artefact rate‡%110 (0–29)744 (0–17)0.40
 Stimulus stability§%11100 (100–100)74100 (100–100)0.23
 Probe fit%842 (20.5–72.25)7444 (33.75–54)0.42
  • *Artefact rate <20% in 2/11 (18.2%) SIDS and 17/75 (22.7%) controls (p=0.74).

  • †Stimulus stability >80% in all 11 SIDS and 72/75 (96%) controls.

  • ‡Artefact rate <20% in 3/11 (27.3%) SIDS and 13/74 (17.6%) controls (p=0.45).

  • §Stimulus stability >80% in all 11 SIDS and 71/74 (95.9%) controls.

  • SIDS, sudden infant death syndrome.