Table 4.
Summary of RR measurement algorithm performance across different demographic sub-group.
| Demographic variables | Reference datapoints | Measured datapoints | MAE | DR (%) | |
|---|---|---|---|---|---|
| RR (BrPM) | 5–15 | 14,360 | 13,235 | 1.54 | 92.17 |
| 15–25 | 50,271 | 46,872 | 1.21 | 93.24 | |
| 25–35 | 3536 | 3065 | 1.65 | 86.68 | |
| 35–45 | 126 | 121 | 1.58 | 96.03 | |
| > 45 | 49 | 48 | 1.31 | 97.96 | |
| Age (years) | 18–24 | 13,825 | 13,075 | 1.27 | 94.58 |
| 24–30 | 17,614 | 16,645 | 1.23 | 94.5 | |
| 30–36 | 11,336 | 10,928 | 1.12 | 96.4 | |
| 36–42 | 6893 | 5828 | 1.54 | 84.55 | |
| 42–48 | 3751 | 3247 | 1.37 | 86.56 | |
| >=48 | 14,830 | 13,539 | 1.4 | 91.29 | |
| Gender | Female | 29,667 | 27,300 | 1.22 | 92.02 |
| Male | 38,675 | 36,041 | 1.34 | 93.19 | |
|
BMI (kg/m²) |
< 18.5 | 4765 | 4612 | 1.16 | 96.79 |
| 18.5–24.9 | 35,690 | 32,665 | 1.26 | 91.52 | |
| 25–45 | 27,794 | 25,985 | 1.35 | 93.49 | |
| Race/ethnicity | Asian-American | 1122 | 1046 | 1.47 | 93.23 |
| Black/ African American | 378 | 348 | 1.44 | 92.06 | |
| Indian | 62,200 | 57,612 | 1.24 | 92.62 | |
| Mixed | 241 | 230 | 1.81 | 95.44 | |
| White/Caucasian/unknown | 4401 | 4105 | 1.92 | 93.27 | |
| Study subjects | Healthy Volunteers | 42,413 | 40,214 | 1.21 | 94.82 |
| ICU Subjects | 7071 | 6518 | 1.09 | 92.18 | |
| Sleep Apnea Subjects | 2977 | 2846 | 1.15 | 95.6 | |
| Ward Patients | 15,881 | 13,763 | 1.66 | 86.66 | |
| Comorbidities | Hypertension | 5788 | 4759 | 1.36 | 82.22 |
| Diabetes | 5677 | 4781 | 1.95 | 84.22 | |
| Cardiovascular Disease | 2723 | 2314 | 2.14 | 84.98 | |
| Obesity | 2655 | 2262 | 2.04 | 85.2 | |
| COPD | 1713 | 1342 | 1.33 | 78.34 | |
| Apnea | 2959 | 2834 | 1.13 | 95.78 | |
| Hypothyroidism | 1234 | 1066 | 1.24 | 86.39 | |
| Hyperthyroidism | 1769 | 1455 | 1.37 | 82.25 | |
| Trauma | 1372 | 1352 | 0.75 | 98.54 | |
| Hemorrhage | 1194 | 1145 | 0.86 | 95.9 | |
| Others | 4296 | 3737 | 1.35 | 86.99 | |
| No Comorbidities reported | 50,214 | 47,285 | 1.25 | 94.17 | |