Table 8.

Demographic and Clinical Features of Chuvash Patients With Polycythemia and Their First-Degree Relatives

Index SubjectsFirst-Degree Family Members (N = 12)P
(N = 6)
Age (years) 11 ± 3 33 ± 13 <.0005 
Females (no. and %) 4 (67) 6 (50) .6 
Hemoglobin (g/dL) 22.6 ± 1.4 14.5 ± 1.1 <.0005 
Hematocrit (%) 66.6 ± 3.9 42.7 ± 3.4 <.0005 
Red blood cells (×10−6/μL) 7.5 ± 0.5 4.7 ± 0.5 <.0005 
Mean corpuscular volume (fL) 89 ± 4 90 ± 5 .6 
Mean corpuscular hemoglobin (pg) 30.1 ± 1.3 30.6 ± 1 .5 
Red blood cell distribution width (%) 14.0 ± 0.88-150 13.0 ± 0.68-151 .012 
Reticulocytes (×10−3/μL) 66.3 ± 39.28-152 41.7 ± 15.6ρ .3 
White blood cells (×10−3/μL) 7.2 ± 1.6 7.3 ± 1.5 .8 
Neutrophils (×10−3/μL) 4.1 ± 1.4 3.8 ± 1.2 .7 
Lymphocytes (×10−3/μL) 2.2 ± 1.0 2.4 ± 0.9 .7 
Monocytes (×10−3/μL) 0.6 ± 0.6 0.9 ± 0.6 .4 
Eosinophils (×10−3/μL) 0.2 ± 0.2 0.2 ± 0.1 .6 
Platelets (×10−3/μL) 213 ± 38 255 ± 53 .1 
Index SubjectsFirst-Degree Family Members (N = 12)P
(N = 6)
Age (years) 11 ± 3 33 ± 13 <.0005 
Females (no. and %) 4 (67) 6 (50) .6 
Hemoglobin (g/dL) 22.6 ± 1.4 14.5 ± 1.1 <.0005 
Hematocrit (%) 66.6 ± 3.9 42.7 ± 3.4 <.0005 
Red blood cells (×10−6/μL) 7.5 ± 0.5 4.7 ± 0.5 <.0005 
Mean corpuscular volume (fL) 89 ± 4 90 ± 5 .6 
Mean corpuscular hemoglobin (pg) 30.1 ± 1.3 30.6 ± 1 .5 
Red blood cell distribution width (%) 14.0 ± 0.88-150 13.0 ± 0.68-151 .012 
Reticulocytes (×10−3/μL) 66.3 ± 39.28-152 41.7 ± 15.6ρ .3 
White blood cells (×10−3/μL) 7.2 ± 1.6 7.3 ± 1.5 .8 
Neutrophils (×10−3/μL) 4.1 ± 1.4 3.8 ± 1.2 .7 
Lymphocytes (×10−3/μL) 2.2 ± 1.0 2.4 ± 0.9 .7 
Monocytes (×10−3/μL) 0.6 ± 0.6 0.9 ± 0.6 .4 
Eosinophils (×10−3/μL) 0.2 ± 0.2 0.2 ± 0.1 .6 
Platelets (×10−3/μL) 213 ± 38 255 ± 53 .1 

Values are mean ± SD unless otherwise indicated.

F8-150

N = 5.

F8-151

N = 10.

F8-152

N = 4.

ρ N = 6.

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