Dataset Information

Pulse Oximetry and Race in Critically Ill Adults.

ABSTRACT: For critically ill adults, oxygen saturation is continuously monitored using pulse oximetry (Spo₂) as a surrogate for arterial oxygen saturation (Sao₂). Skin pigmentation may affect accuracy of Spo₂ by introducing error from statistical bias, variance, or both. We evaluated relationships between race, Spo₂, Sao₂, and hypoxemia (Sao₂ < 88%) or hyperoxemia (Pao₂ > 150 mm Hg) among adults receiving mechanical ventilation in a medical ICU.

Design

Single-center, observational study.

Setting

Medical ICU at an academic medical center.

Patients

Critically ill adults receiving mechanical ventilation from July 2018 to February 2021, excluding patients with COVID-19, with race documented as Black or White in the electronic medical record, who had a pair of Spo₂ and Sao₂ measurements collected within 10 minutes of each other.

Interventions

None.

Measurements

We included 1,024 patients with 5,557 paired measurements within 10 minutes, of which 3,885 (70%) were within 1 minute. Of all pairs, 769 (14%) were from Black patients and 4,788 (86%) were from White patients. In analyses using a mixed-effects model, we found that across the range of Spo₂ values of 92-98%, the associated Sao₂ value was approximately 1% point lower for Black patients compared with White patients. Among patients with a Spo₂ value between 92% and 96%, Black patients were more likely to have both hypoxemia (3.5% vs 1.1%; p = 0.002) and hyperoxemia (4.7% vs 2.4%; p = 0.03), compared with White patients.

Conclusions

Among patients with a measured Spo₂ of 92-96%, greater variation in Sao₂ values at a given Spo₂ resulted in a higher occurence rate of both hypoxemia and hyperoxemia for Black patients compared with White patients.

SUBMITTER: Seitz KP

PROVIDER: S-EPMC9478292 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Pulse Oximetry and Race in Critically Ill Adults.

Seitz Kevin P KP Wang Li L Casey Jonathan D JD Markus Shannon A SA Jackson Karen E KE Qian Edward T ET Self Wesley H WH Rice Todd W TW Semler Matthew W MW

Critical care explorations 20220914 9

For critically ill adults, oxygen saturation is continuously monitored using pulse oximetry (Spo2) as a surrogate for arterial oxygen saturation (Sao2). Skin pigmentation may affect accuracy of Spo2 by introducing error from statistical bias, variance, or both. We evaluated relationships between race, Spo2, Sao2, and hypoxemia (Sao2 < 88%) or hyperoxemia (Pao2 > 150 mm Hg) among adults receiving mechanical ventilation i ...[more]

PMID: 36128001

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Dataset Information

Pulse Oximetry and Race in Critically Ill Adults.

Design

Setting

Patients

Interventions

Measurements

Conclusions

Publications

Pulse Oximetry and Race in Critically Ill Adults.

Similar Datasets

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