From: Tissue hemoglobin index: a non-invasive optical measure of total tissue hemoglobin
Characteristic | Value | Tissue hemoglobin index | Tissue hemoglobin oxygen saturation (%) |
---|---|---|---|
Posture | Â | * | * |
   Sitting reclined | 271 | 13.9 ± 1.55 | 83.3 ± 4.01 |
   Sitting upright | 163 | 14.4 ± 1.62 | 78.3 ± 5.57 |
Gender | Â | Â | * |
   Male | 235 | 14.1 ± 1.58 | 83.3 ± 4.29 |
   Female | 199 | 14.1 ± 1.63 | 79.3 ± 5.47 |
Age (years) | 42.3 ± 10.7 |  |  |
Ethnicity | Â | Â | Â |
   White | 410 | 14.1 ± 1.62 | 81.4 ± 5.30 |
   Other | 11 | 13.5 ± 0.82 | 81.9 ± 3.14 |
   Hispanic | 6 | 14.3 ± 1.37 | 85.1 ± 6.19 |
   Indian | 6 | 12.9 ± 1.02 | 80.4 ± 2.86 |
   Black | 1 | 12.4 ± na | 78.0 ± na |
Smoker | Â | * | Â |
   No | 392 | 14.7 ± 1.39 | 81.5 ± 5.25 |
   Yes | 42 | 14.0 ± 1.61 | 81.3 ± 5.35 |
   Hours last smoked | 4.4 ± 5.1 |  |  |
Dominant hand measured | Â | Â | Â |
   Yes | 395 | 14.1 ± 1.61 | 81.4 ± 5.35 |
   No | 39 | 13.9 ± 1.47 | 82.2 ± 4.04 |