Assessment of Respiratory Symptoms and Pulmonary Function Status among Workers of Flour Mills in Addis Ababa, Ethiopia: Comparative Cross-Sectional Study

Table 5

The comparison of the actual value mean spirometric indices of exposed and nonexposed groups by independent sample t-test.

PFTs Parameters	Flour mill workers n=54 and controls n=54)	Mean ±SD	p-value
FVC(L)	Flour mill workers	4.25±0.93	p<0.001
	Control	5.30±0.71
FEV1 (L)	Flour mill workers	3.46±0.86	p<0.001
	Control	4.50±0.72
FEV1%	Flour mill workers	81.93±12.74	p>0.05
	Control	83.40±12.50,
PEFR(L/s)	Flour mill workers	5.43±2.43	p<0.001
	Control	7.87±2.53
FEF25% % (L/s)	Flour mill workers	3.87±1.61	p<0.05
	Control	4.60±1.60