TABLE III. Haematological parameters of the free-living Southern brown howler monkeys (Alouatta guariba clamitans), infected and uninfected by Plasmodium spp. in Joinville, Santa Catarina State, south of Brazil.
| Haematological parameters | Infected (n = 22) | Uninfected (n = 12) | pa | ||
| Mean | SD | Mean | SD | ||
| Erythrocytes (x106/µL) | 4.74 | 0.67 | 4.56 | 0.65 | 0.464 |
| Haemoglobin (g/µL) | 9.93 | 1.51 | 9.92 | 1.23 | 0.975 |
| Hematocrit (%) | 33.35 | 4.22 | 32.96 | 3.86 | 0.787 |
| Mean Corpuscular Hemoglobin Concentration (g/µL) | 29.70 | 1.77 | 30.11 | 1.78 | 0.533 |
| Mean Corpuscular Volume (fL) | 70.59 | 4.16 | 72.72 | 6.36 | 0.312 |
| Mean Corpuscular Hemoglobin (pg) | 20.98 | 1.90 | 21.97 | 3.13 | 0.331 |
| Platelets (x10³/µL) | 57.86 | 34.39 | 76.33 | 50.53 | 0.274 |
| Leucocytes (x10³/µL) | 6.43 | 2.66 | 6.02 | 2.36 | 0.647 |
| Neutrophils (x10³/µL) | 3.23 | 0.46 | 3.44 | 0.40 | 0.270 |
| Band Cells (x10³/µL) | 0.19 | 0.06 | 0.23 | 0.06 | 0.320 |
| Eosinophils (x10³/µL) | 0.14 | 0.04 | 0.16 | 0.05 | 0.557 |
| Lymphocytes (x10³/µL)b | 2.80 | 0.48 | 1.76 | 0.29 | 0.010 |
| Monocytes (x10³/µL) | 0.12 | 0.03 | 0.10 | 0.03 | 0.423 |
a: Student’s t-test and Mann-Whitney U test, comparing infected and uninfected animals (p ≤ 0.05 in bold); b: significantly higher in infected females compared to uninfected females (p = 0.014). In this analysis, we only included adults and subadults. SD = standard deviation.