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Table 1 Seasonal changes in haematological variables for subadult brown bears (Ursus arctos) presented as 95 % confidence interval

From: Seasonal variation in haematological and biochemical variables in free-ranging subadult brown bears (Ursus arctos) in Sweden

Variablea

Unit

λb

2.5 - 97.5 intervalc

Sexd

Seasone

n

Range

p-valuef

Haemoglobin

g/L

2

141-213

F + M

W

11

187–215

<0.0001

Sp

19

153–187

Su

15

134–183

RBC

×1012/L

0.8

6.1–9.5

F + M

W

11

8.4–10.0

<0.0001

Sp + Su

34

6.2–8.0

Haematocrit

L/L

−0.2

0.40–0.63

F + M

W

11

0.54–0.66

<0.0001

Sp

19

0.46–0.55

Su

15

0.42–0.53

MCV

fL

−0.6

60–75

F + M

W

11

58–71

0.0038

Sp + Su

34

62–74

MCHC

g/L

2

289–385

F + M

W + Sp + Su

45

318–388

 

WBC

×109/L

0

2.7–13.2

F + M

W

11

3.1–12.7

0.0208

Sp + Su

34

3.9–18.3

Segm.neutroph.

%

2

41.3–89.5

F + M

W

11

31.4–70.8

<0.0001

Sp + Su

34

50.7–87.9

Eosinophils

%

0.4

0.0–21.4

F + M

W

11

1.2–18.4

0.0091

Sp + Su

34

0.0–10.7

Lymphocytes

%

0.6

2.6–44.3

F + M

W

11

15.1–45.4

0.0004

Sp + Su

34

3.1–34.9

Monocytes

%

0.4

1.0–21.4

F + M

W + Sp + Su

45

0.6–14.6

 
  1. aRBC = red blood cell count; MCV = mean corpuscular volume; MCHC = mean corpuscular haemoglobin concentration; WBC = white blood cell count; Segm.neutroph. = segmented neutrophils
  2. bλ = the transformation value from the Box-Cox transformation
  3. c2.5 and 97.5 percentiles on untransformed data
  4. dF = female; M = male. e:W = winter (February-March); Sp = spring (April-May); Su = summer (June)
  5. f p-values are given for significantly different seasons groups