Table 2 Adjusted count ratios^a for association of urinary 3-PBA levels with inattentive and hyperactive-impulsive symptom counts

Urinary 3-PBA Level ≥ LOD

  Overall

1.26 (0.75, 2.12)

1.77 (0.95, 3.30)

  Boys

1.61 (0.92, 2.80)

2.49 (1.17, 5.27)

  Girls

0.89 (0.44, 1.81)

1.01 (0.51, 2.00)

Log₁₀-transformed Urinary 3-PBA

  Overall

1.21 (0.83, 1.78)

1.50 (1.03, 2.19)

  Boys

1.49 (1.05, 2.12)

1.57 (1.05, 2.34)

  Girls

1.00 (0.58, 1.71)

1.51 (0.88, 2.60)