Table 10.
Effects of hematocrit levels on SF-36 subscales.
| SF-36 | Low Levels (n = 21) | Normal Levels (n = 40) | U or t (df) 4 | p-Value |
|---|---|---|---|---|
| Physical functioning | 36.91 ± 42.29 1 | 45.63 ± 37.51 1 | U = 490 | 0.27 |
| 25 (87.5) 2 | 25 (50) 2 | |||
| Physical role 3 | 68.10 ± 21.71 1 | 68.88 ± 19.76 1 | t (59) = −0.09 | 0.93 |
| 75 (35) 2 | 70 (18.75) 2 | |||
| Bodily pain | 80.95 ± 23 1 | 81 ± 24.89 1 | U = 426 | 0.92 |
| 100 (35) 2 | 95 (30) 2 | |||
| General health | 63.81 ± 21.85 1 | 64.75 ± 23.12 1 | U = 437.5 | 0.79 |
| 70 (42.5) 2 | 65 (35) 2 | |||
| Vitality 3 | 55.24 ± 24.00 1 | 56.63 ± 24.68 1 | t (59) = −0.25 | 0.80 |
| 60 (25) 2 | 60 (25) 2 | |||
| Social functioning | 56.43 ± 30.60 1 | 70.55 ± 31.63 1 | U = 535.00 | 0.07 |
| 50 (50.5) 2 | 75 (50) 2 | |||
| Emotional role | 44.33 ± 33.98 1 | 63.25 ± 33.97 1 | U = 541.5 | 0.05 |
| 33 (34) 2 | 67 (67) 2 | |||
| Mental health | 44.33 ± 33.97 1 | 63.25 ± 35.26 1 | F (1, 55.01) = 0.77 5 | 0.39 |
| 33 (34) 2 | 67 (67) 2 |
1 Mean ± standard deviation; 2 median (interquartile range); 3 analysis was implemented on transformed data (mean, median, and measures of dispersion on raw data are presented to enable comparisons across subscales); 4 U: Mann–Whitney, t: independent samples t test; 5 Welch’s F-test.