TABLE 3.
Reliability analysis of haematological variables determined from different sampling techniques (capillary and venous) during a CO rebreathing protocol. N = 13.
| Analyte | Capillary | Venous | ICC | |||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | TE% | Mean | SD | TE% | Capillary | Venous | |
| BL Hct (%) | 47.9 | 4.4 | 47.1 | 3.8 | 0.888 | 0.949 | ||
| Pre Hct (%) | 46.6 | 4.7 | 45.0 | 3.9 | 0.843 | 0.950 | ||
| Post Hct (%) | 46.9 | 4.2 | 45.4 | 4.2 | 0.751 | 0.948 | ||
| BL [Hb] (g·L−1) | 156 | 15 | 154 | 13 | 0.891 | 0.963 | ||
| Pre [Hb] (g·L−1) | 152 | 16 | 147 | 13 | 0.842 | 0.946 | ||
| Post [Hb] (g.L−1) | 153 | 14 | 148 | 14 | 0.752 | 0.904 | ||
| BL COHb (%) | 1.0 | 0.3 | 1.2 | 0.2 | 0.606 | −0.196 | ||
| Pre COHb (%) | 0.8 | 0.3 | 1.2 | 0.3 | −0.623 | −1.132 | ||
| Post COHb (%) | 8.6 | 1.1 | 9.1 | 1.1 | 0.976 | 0.969 | ||
| ΔCOHb (%) | 7.8 | 1.2 | 4.9 | 7.9 | 1.2 | 1.9 | 0.934 | 0.991 |
| Hbmass (g) | 967.6 | 186.1 | 5.5 | 952.4 | 172.5 | 2.1 | 0.949 | 0.993 |
| Hbmass (g·kg−1) | 11.6 | 1.7 | 7.3 | 11.4 | 1.6 | 2.7 | 0.827 | 0.978 |
| RBCV (L) | 3.0 | 0.6 | 5.5 | 2.9 | 0.5 | 2.1 | 0.949 | 0.993 |
| BV (L) | 6.4 | 1.2 | 9.4 | 6.5 | 1.0 | 2.8 | 0.844 | 0.986 |
| PV (L) | 3.5 | 0.7 | 14.2 | 3.6 | 0.6 | 4.5 | 0.732 | 0.968 |
Note: Bold = statistically significant (p < 0.05); TE%, Typical measurement error %; ICC, intraclass correlation.