Table 5.

Lung function parameters of butchers and administrative staff at Dei-Dei Abattoir, Abuja, measured over four quarters.

Parameter	Q1		Q2		Q3		Q4
PEV-Butchers	250.17 ± 26.89	*	233.50 ± 40.10	*	241.83 ± 31.84	*	256.00 ± 23.59	*
PEV- AS	571.67 ± 54.43		571.67 ± 54.43		480.00 ± 94.78		570.00 ± 54.75
FEV- Butchers	2.42 ± 0.36	*	2.53 ± 0.50	*	2.32 ± 0.41	*	2.38 ± 0.39
FEV-AS	2.05 ± 0.22		2.06 ± 0.21		2.14 ± 0.30		2.08 ± 0.19
FVC-Butchers	3.13 ± 0.50	*	3.30 ± 0.82	*	3.13 ± 0.50	*	3.17 ± 0.51	*
FVC-AS	2.33 ± 0.24		2.33 ± 0.24		2.42 ± 0.23		2.36 ± 0.23
FEV/FVC(%) -Butchers	77.33 ± 10.24		76.66 ± 10.50		74.12 ± 10.54		75.07 ± 10.06
FEV/FVC(%) -AS	88.25 ± 4.16		88.25 ± 4.16		88.93 ± 2.58		88.25 ± 4.16

*Statistically significant difference (P < 0.05) between the butchers and administrative staff (AS). PEV = peak expiratory volume; FEV = forced expired volume; FVC = forced vital capacity.