Industrial noise: impacts on workers鈥� health and performance below permissible limits

Table 4 Correlation between age and hearing thresholds

听	听	Right Ear						Left Ear
听	听	500 Hz	1000 Hz	2000 Hz	4000 Hz	6000 Hz	8000 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz	6000 Hz	8000 Hz
Low-Noise	Correlation Coefficient	0.290^**	0.475^**	0.495^**	0.663^**	0.615^**	0.539^**	0.338^**	0.385^**	0.382^**	0.606^**	0.546^**	0.517^**
听	P value	0.007	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	0,001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001
High-Noise	Correlation Coefficient	0.169	0.461^**	0.448^**	0.590^**	0.624^**	0.456^**	0.217^*	0.340^**	0.527^**	0.574^**	0.589^**	0.352^**
High-Noise	P value	0.121	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	0.045	0.001	鈥�< 0.0001	鈥�< 0.0001	鈥�< 0.0001	0.001

ISSN: 1471-2458