Table A1.
Summary of readings from all four sensors (A–D) from four different positions on the left wrist of all participants (P#); DC level, peak to peak average (P-Pave), Perfusion Index (PI) average and signal to noise ratio (SNR) for each type of light; and the average oxygen saturation (SpO2) levels from both the plastic optical fibre (POF) and Masimo sensors.
| P# | Sensor | Signal | DC Level (nW) |
P-Pave (nW) | PI (%) |
SNR | Average SpO2 (%) |
|
|---|---|---|---|---|---|---|---|---|
| POF | Masimo | |||||||
| 1 | A | Red | 431.4 | – | – | – | – | 98 |
| IR | 203.5 | – | – | – | ||||
| B | Red | 517.7 | 0.4 | 0.08 | 7.99 | – | 99 | |
| IR | 203.6 | – | – | – | ||||
| C | Red | 486.4 | 0.33 | 0.07 | 12.79 | – | 99.1 | |
| IR | 200.15 | – | – | – | ||||
| D | Red | 405 | 0.97 | 0.24 | 11.59 | 98.1 | 98 | |
| IR | 193.6 | 0.13 | 0.06 | 6.32 | ||||
| 2 | A | Red | 331.2 | 0.36 | 0.11 | 6.31 | – | 97.1 |
| IR | 203.97 | – | – | – | ||||
| B | Red | 393.5 | 1.1 | 0.28 | 3.87 | 96.9 | 96.6 | |
| IR | 201.45 | 0.9 | 0.04 | 2.35 | ||||
| C | Red | 499.15 | 0.22 | 0.045 | 4.99 | – | 97.3 | |
| IR | 194.75 | – | – | – | ||||
| D | Red | 244 | 0.475 | 0.19 | 3.94 | – | 97 | |
| IR | 197.6 | – | – | – | ||||
| 3 | A | Red | 438.5 | – | – | – | – | 97.7 |
| IR | 198.46 | – | – | – | ||||
| B | Red | 512.1 | 0.21 | 0.04 | 3.95 | – | 98.3 | |
| IR | 204.2 | – | – | – | ||||
| C | Red | 515.3 | 0.32 | 0.06 | 9.54 | – | 98 | |
| IR | 201.13 | – | – | – | ||||
| D | Red | 311.1 | 0.53 | 0.17 | 5.89 | 97.6 | 97.4 | |
| IR | 188.05 | 0.11 | 0.06 | 6.39 | ||||
| 4 | A | Red | 394.70 | 0.22 | 0.055 | 4.44 | – | 98 |
| IR | 185.18 | – | – | – | ||||
| B | Red | 455.6 | 0.28 | 0.06 | 5.28 | 99 | 99 | |
| IR | 203.26 | 0.09 | 0.05 | 7.07 | ||||
| C | Red | 485.90 | – | – | – | – | 98 | |
| IR | 197.16 | – | – | – | ||||
| D | Red | 385.10 | 0.26 | 0.07 | 6.75 | 99.1 | 99 | |
| IR | 185.40 | 0.12 | 0.07 | 6.94 | ||||
| 5 | A | Red | 719 | – | – | – | – | 97.7 |
| IR | 195.65 | – | – | – | ||||
| B | Red | 477.65 | 0.43 | 0.09 | 10.96 | 97.8 | 98.1 | |
| IR | 193.62 | 0.087 | 0.04 | 7.51 | ||||
| C | Red | 333.10 | – | – | – | – | 98.2 | |
| IR | 190.03 | – | – | – | ||||
| D | Red | 199.30 | 0.34 | 0.17 | 2.41 | – | 99 | |
| IR | 180.90 | – | – | – | ||||
| 6 | A | Red | 398.7 | 0.24 | 0.06 | 5.50 | – | 98.9 |
| IR | 186.87 | – | – | – | ||||
| B | Red | 405.2 | 0.66 | 0.16 | 5.36 | – | 99 | |
| IR | 191.04 | – | – | – | ||||
| C | Red | 305 | 0.52 | 0.17 | 5.15 | – | 100 | |
| IR | 191.7 | – | – | – | ||||
| D | Red | 428.50 | 2.73 | 0.64 | 4.1 | 99.3 | 99 | |
| IR | 185.80 | 0.13 | 0.07 | 4.47 | ||||
| 7 | A | Red | 437 | 0.32 | 0.07 | 7.33 | 99.5 | 100 |
| IR | 191.6 | 0.11 | 0.06 | 5.99 | ||||
| B | Red | 438.48 | 0.28 | 0.06 | 3.95 | – | 99 | |
| IR | 192.72 | – | – | – | ||||
| C | Red | 419.9 | – | – | – | – | 100 | |
| IR | 201.42 | – | – | – | ||||
| D | Red | 474.60 | 0.29 | 0.06 | 3.20 | – | 100 | |
| IR | 185.70 | – | – | – | ||||
| 8 | A | Red | 473.88 | 0.29 | 0.06 | 8.04 | – | 98 |
| IR | 181.40 | – | – | – | ||||
| B | Red | 356.90 | 0.44 | 0.12 | 5.49 | – | 98 | |
| IR | 187.15 | – | – | – | ||||
| C | Red | 385.40 | 0.52 | 0.13 | 5.80 | 98.9 | 98.7 | |
| IR | 180.26 | 0.11 | 0.06 | 5.30 | ||||
| D | Red | 325.40 | 0.37 | 0.11 | 4.29 | – | 97.4 | |
| IR | 180.25 | – | – | – | ||||
| 9 | A | Red | 502.84 | 0.20 | 0.04 | 6.63 | – | 98.9 |
| IR | 186 | – | – | – | ||||
| B | Red | 420.7 | 0.84 | 0.19 | 7.19 | 98.1 | 98.3 | |
| IR | 191.29 | 0.15 | 0.08 | 4.17 | ||||
| C | Red | 475.80 | – | – | – | – | 99 | |
| IR | 188.14 | – | – | – | ||||
| D | Red | 408.78 | 0.52 | 0.13 | 5.98 | 99.5 | 99 | |
| IR | 178.12 | 0.10 | 0.06 | 4.29 | ||||
| 10 | A | Red | 723.36 | 0.20 | 0.03 | 9.23 | – | 99 |
| IR | 188.22 | – | – | – | ||||
| B | Red | 389.73 | 0.26 | 0.07 | 8.84 | – | 97 | |
| IR | 199.85 | – | – | – | ||||
| C | Red | 401.31 | 0.51 | 0.13 | 8.30 | – | 98.1 | |
| IR | 199.34 | – | – | – | ||||
| D | Red | 385.26 | 0.24 | 0.06 | 6.86 | 97.3 | 97.5 | |
| IR | 182.33 | 0.1 | 0.05 | 6.27 | ||||