Table 8. Changes in HDL-C levels according to the pretest and posttest results of each group.

	Group	Pre (mean ± SD)	Post (mean ± SD)
HDL-C(mg/dl)	Ex smoker	45.2 ± 9.2	48.5 ± 10.2
	Non Ex smoker	42.8 ± 7.0	44.0 ± 8.7
	Ex Nonsmoker	48.3 ± 7.2	52.0 ± 7.7
	Non Ex Nonsmoker	40.8 ± 8.0	40.8 ± 10.2
Fgroup*time=0.60 (0.622), Fgroup=1.38 (0.281), Ftime=3.37 (0.082)

HDL-C: high density lipoprotein-cholesterol.