Table 5.

Demographic characteristics of the study subjects

VariablesNonexposedBenzene-exposedCBP
Number373839
Age (y)45.4 ± 5.9*33.0 ± 7.333.4 ± 7.8
Male (%)15 (34.9)22 (57.9)22 (56.4)
Current smoker (%)14 (32.6)14 (36.8)12 (30.8)
Current alcohol user (%)12 (27.9)14 (36.8)19 (48.7)