Table 3.
All (n = 20) | Placebo group (n = 10) | Vitamin D group (n = 10) | Overall effect of time (pre to post) | Condition (vitamin D supplement vs. placebo)‐by‐time (pre to post) interaction | ||||
---|---|---|---|---|---|---|---|---|
Preintervention | Postintervention | Preintervention | Postintervention | Preintervention | Postintervention | P value | P value | |
WBC (103·μL) | 6.15 ± 1.56 | 6.02 ± 1.46 | 6.03 ± 1.50 | 5.84 ± 1.47 | 6.27 ± 1.69 | 6.20 ± 1.51 | 0.643 | 0.166 |
RBC (103·μL) | 4.88 ± 0.31 | 4.85 ± 0.54 | 4.79 ± 0.39 | 4.86 ± 0.71 | 4.97 ± 0.17 | 4.83 ± 0.33 | 0.604 | 0.808 |
Hb (g·dL) | 14.4 ± 0.9 | 14.4 ± 1.6 | 14.2 ± 0.9 | 14.4 ± 2.0 | 14.7 ± 0.9 | 14.4 ± 1.2 | 0.870 | 0.255 |
Hct (%) | 42.6 ± 2.3 | 42.0 ± 5.6 | 42.1 ± 2.7 | 43.0 ± 5.9 | 43.2 ± 1.8 | 41.1 ± 5.4 | 0.527 | 0.127 |
PLT (103·μL) | 254 ± 60 | 256 ± 93 | 259 ± 64 | 255 ± 76 | 250 ± 57 | 256 ± 112 | 0.924 | 0.616 |
Neutrophils (109·L) | 3.50 ± 1.30 | 3.27 ± 0.95 | 3.54 ± 1.43 | 3.31 ± 0.94 | 3.47 ± 1.25 | 3.23 ± 1.00 | 0.308 | 0.735 |
Lymphocytes (109·L) | 1.91 ± 0.45 | 2.00 ± 0.52 | 1.82 ± 0.41 | 1.79 ± 0.46 | 2.00 ± 0.50 | 2.21 ± 0.51 | 0.115 | 0.030 |
Monocytes (109·L) | 0.48 ± 0.10 | 0.53 ± 0.18 | 0.53 ± 0.12 | 0.53 ± 0.21 | 0.44 ± 0.06 | 0.52 ± 0.15 | 0.139 | 0.160 |
Eosinophils (109·L) | 0.22 ± 0.18 | 0.19 ± 0.12 | 0.21 ± 0.10 | 0.18 ± 0.10 | 0.23 ± 0.25 | 0.20 ± 0.15 | 0.264 | 0.959 |
Basophiles (109·L) | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.256 | 0.366 |
Data are presented as means ± SD. WBC, white blood cell count; RBC, red blood cell count; Hb, hemoglobin; Hct, hematocrit; PLT, platelets.