Table 8. BPA level differences with respect to characteristics and daily habits.

Variable	N	Mean	p-value	Variable	N	Mean	p-value
Gender				Plastic use
Male	43	0.29	0.002	Yes	131	2.28	0.599
Female	107	2.99		No	19	1.72
Age				Source of food
<33 y	109	0.847	0.000	Home cooking	91	2.79	0.072
≥33 y	41	5.852		Dining out	59	1.32
Smoking				Source of drinking
Yes	5	0.000	0.303	Tap water	111	2.882	0.005
No	145	2.292		Mineral Water	39	0.318