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. 2011 Summer;4(3):119–124.

Table 2.

The frequencies of micronuclei and other nuclear abnormalities in exfoliated buccal epithelial cells of control and exposed chrome plating workers.

Study group			N	Nuclear abnormalities
Study group			N	MN (mean± SD)	BN (mean± SD)	BE (mean ± SD)	KR (mean± SD)	KL (mean ± SD)	PK (mean ± SD)
Control	Smokers		21	1.41±0.42	4.75±0.88	2.52±1.48	9.10±2.97	39.23±2.49	2.62±0.23
	Non-Smokers		19	1.08±0.21	3.42±0.98	3.21±1.51	6.05±1.56	26.31±2.57	1.86±0.79
	Alcoholics		18	0.73 ± 0.13	3.82±1.02	1.83±0.49	8.12±0.92	32.05±1.78	1.95±0.81
	Non-alcoholics		22	0.65 ± 0.22	2.67±0.85	1.55±0.42	6.20±0.72	29.03±1.88	1.65±0.27
Workers	Smokers		24	4.52±1.11^*,†	7.28±0.87^*,†	7.16±1.59^*,†	19.05±1.25^*,†	128.90±8.43^*,†	5.12±0.46^*,†
	Non-smokers		20	3.19±1.19^*	6.98±0.97^*	5.09±0.73^*	12.27±2.22^*	87.10±4.27^*	3.69±0.39^*
	Alcoholics		19	3.52 ± 1.15^*	6.27±0.52^*	6.51±1.07^*	16.42±1.87^*	103.55±4.56^*	3.44±0.06^*
	Non- alcoholics		25	3.33 ± 0.88^*	6.05±1.09^*	6.16±0.49^*	13.06±1.47^*	19.92±6.43^*	2.57±0.08^*
	Duration of exposures (years)	≤5	23	3.06 ± 0.03^*	5.82 + 0.33^*	5.10± 1.03^*	14.04 ± 0.55^*	93.53± 4.07^*	2.22±0.40^*
	Duration of exposures (years)	>5	21	3.92 ± 0.05^*	6.87 ± 0.51^*	6.91 ± 0.67^*	17.26 ± 1.32^*	107.4 ± 8.07^*	3.73±0.41^*

Results are mean ± SD;

^*

p<0.05 compared with their respective controls;

^†

p<0.05 compared with non smokers