Table 4 Descriptive statistics and comparative Student t-test for haematological variables recorded in T. annae infected (n = 75) and non-infected dogs (n =45)
Blood variable (normality reference range) | Group | N | Mean | SD | Percentiles | P value | ||
|---|---|---|---|---|---|---|---|---|
25 th | 50 th | 75 th | ||||||
Erythrocytes (5.50-8.50)x10 6 /μl | I | 72* | 3.28 | 1.63 | 2.16 | 2.77 | 4.32 | <0.0001 |
NI | 38* | 4.9 | 2.04 | 3.57 | 5.3 | 6.06 | ||
Haematocrit (37.00-55.0)% | I | 72 | 27.12 | 11.9 | 18.6 | 23.45 | 36.2 | 0.0019 |
NI | 38 | 35.16 | 13.86 | 23.50 | 36.75 | 44.9 | ||
Haemoglobin (12.00-18.00)g/dl | I | 72 | 7.75 | 3.75 | 5 | 6.5 | 10.2 | <0.0001 |
NI | 38 | 11.04 | 4.57 | 6.5 | 12 | 14.1 | ||
MCV (60.00-76.00)fl | I | 72 | 82.84 | 8.25 | 76 | 81.5 | 83.3 | 0.0088 |
NI | 38 | 76.02 | 12.99 | 70.1 | 73 | 75.6 | ||
MCHC (32.00-36.00)g/dl | I | 72 | 28.25 | 2.61 | 26.7 | 28.2 | 29.7 | <0.0001 |
NI | 38 | 31.2 | 3.12 | 29.5 | 31.2 | 32.7 | ||
MCH (19.5-24.5)pg | I | 72 | 23.18 | 1.73 | 22.1 | 23.1 | 23.8 | 0.5552 |
NI | 38 | 23.59 | 4.08 | 22.1 | 23 | 23.8 | ||
RDW (14.00-20.25)% | I | 72 | 17.44 | 3.26 | 15.1 | 17.45 | 19.2 | 0.1385 |
NI | 38 | 16.47 | 3.06 | 14.5 | 14.9 | 18.5 | ||
Leukocytes (6.00-17.00)x10 3 /μ | I | 72 | 14.42 | 6.25 | 10.5 | 13.32 | 17.1 | 0.3649 |
NI | 38 | 12.64 | 11.3 | 7.89 | 10.84 | 14.54 | ||
Platelets (200–500) x10 3 /μl | I | 59 | 158.5 | 90.35 | 90 | 165 | 218 | 0.019 |
NI | 33 | 211.2 | 121.25 | 150 | 212 | 272 | ||