Journal of Environmental and Public Health / 2016 / Article / Tab 1

Research Article

Cross-Sectional Study of Polybrominated Flame Retardants and Self-Reported Attention Deficit Hyperactivity Disorder in US Youth Aged 12–15 (NHANES 2003-2004)

Table 1

Percentage of sociodemographic and environmental factors and ADHD diagnosis for youth 12–15 years old.

All youth 12–15 years old
( = 1,131)
Those who had the blood analyzed for PBDEs
()
Those who did not have their blood analyzed for PBDEs
()
Chi-square value
( value)

Age (years) 1.09 (0.30)
 12-13582 (51.47)202 (53.24)373 (50.63)
 14-15549 (48.53)179 (46.76)377 (49.38)
 Missing000

Sex2.70 (0.10)
 Male582 (51.26)183 (47.35)399 (53.44)
 Female549 (48.74)198 (52.65)351 (46.56)
 Missing000

Race2.57 (0.46)
 Mexican American350 (31.75)127 (34.12)223 (30.63)
 Other, including other Hispanic and multiracial76 (7.08)23 (5.88)53 (7.50)
 Non-Hispanic white292 (25.08)90 (23.82)202 (26.09)
 Non-Hispanic black413 (36.10)141 (36.17)272 (35.78)
 Missing000

PIR1.21 (0.27)
 0–0.99332 (32.15)120 (34.44)212 (30.93)
 ≥1746 (67.85)244 (65.56)502 (69.07)
 Missing531736

Prenatal ETS exposure0.22 (0.64)
 Yes191 (16.84)67 (17.65)124 (16.41)
 No927 (83.16)309 (82.35)618 (83.59)
 Missing1358

Current ETS exposure in home0.01 (0.94)
 Yes253 (22.55)86 (23.53)167 (22.03)
 No863 (77.45)291 (76.47)572 (77.97)
 Missing15411

Covered by health insurance0.04 (0.84)
 Yes954 (85.44)322 (85.29)632 (85.47)
 No159 (14.56)55 (14.71)104 (14.53)
 Missing18414

Birthweight0.26 (0.61)
 ≥2,500 g1,000 (88.57)334 (87.94)666 (88.91)
 <2,500 g129 (11.43)46 (12.06)83 (14.53)
 Missing211

Attended preschool/daycare2.40 (0.12)
 Yes775 (69.29)249(66.47)526 (70.78)
 No353 (30.71)130 (33.53)223 (29.22)
 Missing321

Body Mass Index (BMI) 2.01 (0.37)
 Underweight/normal676 (61.33)244 (64.12)432 (59.84)
 Overweight250 (23.16)80 (21.18)170 (24.22)
 Obese170 (15.51)54 (14.71)116 (15.94)
 Missing35332

Blood lead quartiles3.41 (0.33)
 1st quartile418 (41.22)156 (44.71)262 (39.38)
 2nd quartile309 (30.51)106 (30.00)203 (30.78)
 3rd quartile180 (17.86)57 (16.47)123 (18.59)
 4th quartile16 (10.41)31 (8.82)75 (11.25)
 Missing03187

ADHD diagnosis0.43 (0.51)
 Yes113 (9.22)35 (7.55)78 (10.11)
 No1,016 (90.77)346 (92.45)670 (89.89)
 Missing202

Environmental Tobacco Smoke.

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