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Table 1 Multiple regression analysis of the effect of endogamy, mtDNA, age, and milk yield, on levels of lymphocytes in peripheral blood of cows*

From: Influence of endogamy and mitochondrial DNA on immunological parameters in cattle

Lymphocytes

R2(%)

Parameter

Coefficient

95% confidence interval

P value

CD4 + cells

33.32

Endogamy

-0.3363

-1.001 to 0.3284

0.3120

mtDNA

-0.6537

-5.304 to 3.996

0.7774

Age

0.003929

0.001868 to 0.005989

0.0004

Milk yield

0.008814

-0.003647 to 0.02128

0.1602

CD21 + cells

28.94

Endogamy

0.5605

0.04471 to 1.076

0.0339

mtDNA

2.119

-1.489 to 5.728

0.2417

Age

-0.00181

-0.003409 to -0.0002116

0.0275

Milk yield

-0.00960

-0.01927 to 0.00007

0.0515

γδ high T cells

27.56

Endogamy

-0.1186

-0.3202 to 0.08306

0.2410

mtDNA

0.6985

-0.7122 to 2.109

0.3223

Age

-0.000941

-0.001566 to -0.0003161

0.0042

Milk yield

0.001463

-0.002318 to 0.005243

0.4382

γδ low T cells

22.65

Endogamy

0.01741

-0.1262 to 0.1610

0.8074

mtDNA

0.7841

-0.2208 to 1.789

0.1224

Age

0.0006863

0.0002410 to 0.001132

0.0034

Milk yield

0.001075

-0.001618 to 0.003769

0.4238

CD4 + /CD8 + ratio

26.34

Endogamy

-0.01696

-0.07484 to 0.04093

0.5566

mtDNA

-0.05224

-0.4572 to 0.3528

0.7953

Age

0.0003006

0.0001211 to 0.0004800

0.0016

Milk yield

0.0001360

-0.0009493 to 0.001221

0.8010

T/B cell ratio

36.41

Endogamy

-0.2270

-0.4592 to 0.005096

0.0549

mtDNA

-1.311

-2.935 to 0.3127

0.1103

Age

0.001021

0.0003019 to 0.001741

0.0066

Milk yield

0.005461

0.001109 to 0.009813

0.0153

  1. *Significant differences at P < 0.05 are highlighted in italic format. CD8+, and γδ T lymphocytes did show any significant correlation.