Table 2.

Comparison of some liver function tests and peak expiratory flow in cement workers, residents near cement factory, and controls using post hoc analysis.

Parameter	Groups		Mean diff.	p value
	Cem. workers	Controls
	n = 50	n = 100
ALT (IU)	29.78 ± 2.57	8.72 ± 0.41	21.06 ± 1.75	0.000∗
AST (IU)	37.00 ± 2.61	9.46 ± 0.64	27.540 ± 2.12	0.000∗
TB (μmol/L)	18.26 ± 0.91	13.82 ± 0.62	4.44 ± 1.09	0.000∗
CB (μmol/L)	7.57 ± 0.58	5.84 ± 0.27	1.73 ± 0.60	0.004∗
PEFR (L/min)	324.96 ± 10.40	400.17 ± 9.10	−75.21 ± 14.58	0.000∗
	Residents	Controls
	n = 60	n = 100
ALT (IU)	11.25 ± 0.96	8.72 ± 0.41	2.53 ± 0.55	0.000∗
AST (IU)	17.41 ± 1.70	9.46 ± 0.64	7.95.90 ± 2.00	0.000∗
TB (μmol/L)	18.18 ± 0.81	13.82 ± 0.62	4.36 ± 0.18	0.000∗
CB (μmol/L)	7.33 ± 0.52	5.84 ± 0.27	1.49 ± 0.26	0.004∗
PEFR (L/min)	340.25 ± 10.38	400.17 ± 9.10	−59.92 ± 0.13	0.000∗
	Cem. workers	Residents
	n = 50	n = 60
ALT (IU)	29.78 ± 2.58	11.25 ± 0.96	18.53 ± 1.94	0.000∗
AST (IU)	37.00 ± 2.61	17.41 ± 1.70	19.58 ± 2.35	0.000∗
TB (μmol/L)	18.264 ± 0.91	18.18 ± 0.81	.081 ± 1.204	0.947
CB (μmol/L)	7.57 ± 0.58	7.33 ± 0.52	.24 ± 0.67	0.723
PEFR (L/min)	324.96 ± 10.40	340.25 ± 10.38	−15.29 ± 16.12	0.344

   ^∗Significant at p < 0.05.