Skip to main content

Table 7 Hematological parameters

From: Chronic exposure to emissions from photocopiers in copy shops causes oxidative stress and systematic inflammation among photocopier operators in India

Marker Control n = 43 Photocopier operators n = 81 p value Non smokers
     Control n = 29 Photocopier operators n = 46 p value
WBC (103/μL) 7.1 (5.8 – 8.2) 6.6 (5.6 – 7.7) 0.216 7.1 (5.5 – 8.9) 7.0 (5.4 – 8.2) 0.358
RBC (106/μL) 5.1 (4.6 – 5.8) 5.5 (4.9 – 6.0) 0.082 5.0 (4.4 – 5.5) 5.6 (4.7 – 6.1) 0.028
Hemoglobin (g/dL) 15.1 (12.1 – 16.6) 16.0 (13.9 – 17.0) 0.085 13.5 (11.5 – 15.9) 15.5 (13.3 – 16.6) 0.065
Hematocrit (%) 44.1 (37.4 – 48.0) 46.9 (43.8 – 50.2) 0.015 39.5 (35.5 – 45.6) 45.4 (38.4 – 49.0) 0.017
MCV(fL) 84.0 (79.6 – 87.8) 88.4 (83.5 – 91.8) 0.002 83.1 (75.9 – 86.7) 85.3 (80.9 – 90.5) 0.047
MCH(pg) 28.7 (25.6 – 30.5) 29.3 (27.8 – 31.6) 0.064 28.5 (24.2 – 30.4) 28.7 (26.8 – 30.5) 0.485
MCHC (g/dL) 34.0 (32.5 – 35.5) 33.8 (32.0 – 35.0) 0.730 34.0 (31.9 – 35.8) 33.6 (31.3 – 34.9) 0.474
Platelets (103/μL) 255 (221 – 315) 267 (221 – 303) 0.914 281 (226 – 318) 259 (210 – 316) 0.334
Lymphocytes (103/μL) 2.2 (1.9 – 3.0) 2.3 (1.9 – 2.6) 0.713 2.2 (1.8 – 2.9) 2.4 (1.9 – 2.7) 0.830
Neutrophils (103/μL) 3.7 (2.9 – 4.5) 3.7 (3.1 – 4.8) 0.928 3.9 (3.3 – 5.8) 4.0 (3.4 – 5.1) 0.694
Mixed cells (103/μL) 0.8 (0.7 – 1.1) 0.7 (0.5 – 0.9) 0.004 0.8 (0.6 – 1.0) 0.7 (0.5 – 0.9) 0.062
RDW (fL) 42.7 (40.9 – 44.4) 44.5 (42.5 – 47.0) <0.001 42.4 (40.8 – 43.5) 44.1 (46.5) 0.006
PDW (fL) 12.3 (11.3 – 13.9) 12.1 (11.3 – 13.2) 0.829 12.2 (11.2 – 13.9) 12.4 (11.6 – 13.1) 0.693
MPV (fL) 9.8 (9.4 – 10.7) 9.9 (9.4 – 10.4) 0.920 9.8 (9.4 – 10.5) 10.1 (9.7 – 10.4) 0.271
PLCR (%) 23.9 (20.1 – 29.6) 25.0 (19.8 – 28.5) 0.944 23.3 (20.0 – 28.9) 26.5 (23.0 – 28.1) 0.274
  1. RBC Red blood cells, MCV Mean corpuscular volume, MCH Mean corpuscular hemoglobin, MCHC Mean corpuscular hemoglobin concentration, RDW Red cell distribution width, PDW Platelet distribution width, MPV Mean platelet volume, PLCR Platelet large cell ratio, μL Microlitre, dL Deciliter, fL (femtolitre), pg (picogram), p value for Mann Whitney test.