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. Author manuscript; available in PMC: 2016 Jan 4.
Published in final edited form as: J Expo Sci Environ Epidemiol. 2012 Jul 4;23(2):176–182. doi: 10.1038/jes.2012.67

Table 2.

Behavioral, environmental, and dietary characteristics of the study population.

Yes Sometimes No Unknown/Missing

N (%) N(%) N (%) N (%)
Hand-to-mouth behaviors
Lick fingers 52 (37.1) 40 (28.6) 48 (34.3)
Bite nails 40 (28.8) 27 (19.4) 72 (51.8)
Chew hair 0 (0) 1 (0.7) 139 (99.3)
Bite pencil 4 (2.9) 3 (2.1) 133 (95.0)
Any Behavior 113 (80.7) 0 (0) 27 (19.3)
Electronics
Large-screen TV in home 34 (24.3) 106 (72.1) 5 (3.6)
Video game system in home 59 (42.1) 79 (56.4) 2 (1.4)

Dietary habits (times consumed per week) 0 1–2 3–4 >4

Beef 5 (3.6) 70 (50.0) 52 (37.1) 13 (9.3)
Chicken 2 (1.4) 47 (33.6) 69 (49.3) 22 (15.7)
Pork 29 (20.7) 86 (61.4) 20 (14.3) 5 (3.6)
Fish 62 (44.3) 67 (47.9) 7 (5.0) 4 (2.9)
Dairy (servings per day) 0 (0.0) 56 (40.3) 68 (48.9) 15 (10.8)
Milk Type (skim, 1%, 2%, whole) 0 (0.0) 8 (5.7) 63 (45.0) 66 (47.1)
Fast Food 9 (6.5) 76 (54.7) 42 (30.2) 12 (8.6)