Impact of Petroleum Exposure on Some Hematological Indices, Interleukin-6, and Inflammatory Markers of Workers at Petroleum Stations in Basra City

Table 2

Comparison between exposed workers at petroleum stations and nonexposed subjects in hematological parameters.

Groups	Hematological parameter
	RBC (10^6/µL)	HGB (g/dl)	MCV (fl)	MCH (pg)	MCHC (g/L)
Workers	3.04 ± 0.77	9.3 ± 2.1	75.02 ± 5.84	27.51 ± 2.80	28.83 ± 2.90
Nonexposed subjects	4.34 ± 2.14	11.8 ± 1.5	86.91 ± 6.06	28.86 ± 2.48	32.25 ± 2.49
≤	0.0001	0.0001	0.0001	0.04	0.0001

is significant statistics at level < 0.05. Data are reported as mean ± standard deviation. RBC: red blood cells; HGB: hemoglobin; HCT: haematocrit; MCV: mean corpuscular volume; MCH: mean corpuscular hemoglobin; and MCHC: mean corpuscular hemoglobin concentration.