Respiratory failure & ventilation
Assessment of skin pigmentation-related bias in pulse oximetry readings among adults
Authors' conclusion
TruSignal sensors demonstrated higher bias at lower oxygen saturation, with less than 0.5% difference between pigment groups.
Study context
- Population
- Healthy adults under induced hypoxia; TruSignal SpO2 sensors vs SaO2data points from 131 individuals
- Participants
- 10,800 participants
- Comparison
- Dark vs light skin pigment
- Light pigmentn = 8,202reference
- Dark pigmentn = 2,598
- Outcome
- Bias, accuracy (Arms) and precision of TruSignal SpO2 sensors
Methodological detailsinduced hypoxia, subgroup analyses by oxygen saturation band
- Induced hypoxia
- Subgroup analyses by oxygen saturation band
Pooled result
As reported in the abstract
Bias, band 1 (SpO2 ≥ 70 and ≤ 80%)
Light pigment
+ 0.30%
Dark pigment
+ 0.58%
P = 0.0035
- Bias overall
- 0.14%
- Bias across oxygenation bands
- less than 1%
Further pooled results
Accuracy (Arms), whole saturation range · within device specifications and regulatory requirements
Determinants of bias (stepwise ANOVA, mixed model)
- Oxygenation the dominating factor; bias strongly affected by oxygenation range
Original publication
Assessment of skin pigmentation-related bias in pulse oximetry readings among adults. J Clin Monit Comput. Published 26 October 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →