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

Table 4

Percentage predicted lung function tests of exposed and control groups.

Pulmonary function test Parameters	Groups( case n=54 and control n=54)	Mean ±SD	p-value
FVC(L)	Case	88.59±19.05	0.000
	Control	107.98±14.05
FEV1 (L)	Case	87.80±20.47	0.000
	Control	108.93±16.98
FEV1/FVC	Case	98.56±15.99	0.271
	Control	102.01±16.35
PEFR(L/s)	Case	59.76±25.37	0.000
	Control	83.00±27.32
FEF25% % ( L/s)	Case	88.83±35.08	0.001
	Control	115.09±31.34