Table 3. Risk of Hidden Hypoxemia by Race and Ethnicitya.
| Spo2 group, % | Asian patients | Black patients | Hispanic patients | White patients | ||||
|---|---|---|---|---|---|---|---|---|
| Mean (SE) % | No. | Mean (SE) % | No. | Mean (SE) % | No. | Mean (SE) % | No. | |
| 88-92 | 24.2 (5.0) | 150 | 26.1 (1.0) | 1993 | 28.3 (4.0) | 182 | 22.8 (1.0) | 5304 |
| 93-96 | 6.8 (2.0) | 412 | 10.9 (1.0) | 5454 | 6.6 (1.0) | 594 | 6.5 (0.0) | 15 893 |
| 97-100 | 2.6 (1.0) | 1357 | 4.3 (0.0) | 18 585 | 4.5 (1.0) | 1621 | 2.7 (0.0) | 36 426 |
Abbreviations: Sao2, oxygen saturation; Spo2, pulse oximeter.
a
The risk of hidden hypoxemia (ie, Spo2 ≥88%; Sao2 <88%) characterized by race and ethnicity. Each cell in the table represents the percentage of patients with hidden hypoxemia in the considered racial and ethnic subgroup for a given pulse oximetry grouping. The corresponding bootstrapped SE of the mean for 100 iterations is also provided. The number indicates the total number of patients in each subgroup at that given pulse oximetry grouping (with and without hidden hypoxemia).