Table 2.

Spirometric test results.

Spirometric Values		Exposed	Controls	p Values
N		63	61
FVC	Average	4.76	4.56	0.114
	SD	0.99	1.09
	Median	4.67	4.49
	% mean	115.06	114.2
	% SD	22.42	18.06
	% median	113	112
FEV1	Average	3.53	3.64	0.046
	SD	0.73	0.85
	Median	3.42	3.50
	% mean	105.89	111.03
	% SD	19.05	17.53
	% median	107	110
TIFFENAU INDEX	Average	75.08	79.93	0.001
	SD	9.06	3.89
	Median	76.09	80.12
	Range	32.62–93.43	67.57–87.31

SD = Standard deviation; Significance p < 0.05.