Respiratory failure & ventilation
Racial effects on masimo pulse oximetry: impact of low perfusion index
Authors' conclusion
Masimo SET® pulse oximeters with RD SET® sensors are accurate for individuals of both Black and White races when Pi is normal, as well as during conditions when Pi is low.
Study context
- Population
- Healthy Black and White volunteers with SaO2 sequentially decreased from 100 to 70%7,183 paired samples
- Participants
- 75 participants
- Comparison
- SpO2-SaO2 difference in Black vs White subjects, low (perfusion index (Pi) ≤ 1) vs normal (Pi > 1) perfusion index
- Blackn = 39
- Whiten = 36reference
- Primary endpoint
- SpO2-SaO2 bias (mean difference), precision (SD of the difference) and accuracy (ARMS) at low (Pi ≤ 1) vs normal (Pi > 1) perfusion
Methodological detailshealthy volunteers, laboratory desaturation
- Healthy volunteers
- Laboratory desaturation
Primary result
As reported in the abstract
SpO2-SaO2 bias ± precision, low perfusion (Pi ≤ 1)
Black
+ 0.19
mean · SD 1.53% · %
White
+ 0.91
mean · SD 1.57% · %
- Overall bias ± precision, low perfusion
- + 0.48% ± 1.59%
- ARMS, all subjects, low perfusion
- 1.64%
Further findings
| Outcome | Black | White |
|---|---|---|
| SpO2-SaO2 bias ± precision, normal perfusion (Pi > 1) | mean −0.26 (SD 1.37%) % | mean - 0.12 (SD 1.31%) % |
- SpO2-SaO2 bias ± precision, normal perfusion (Pi > 1) — Overall bias ± precision, normal perfusion
- + 0.18% ± 1.34%
- SpO2-SaO2 bias ± precision, normal perfusion (Pi > 1) — ARMS, all subjects, normal perfusion
- 1.37%
Original publication
Racial effects on masimo pulse oximetry: impact of low perfusion index. J Clin Monit Comput. Published 19 January 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →