TABLE 4

ORs for Any ADHD Subtype According to Creatinine Level-Adjusted Urinary Dimethyl Thiophosphate Concentration (N = 1139)

Dimethyl Thiophosphate ConcentrationOR (95% CI)
Cases Identified With DISC-IV (n = 119)Cases Identified With DISC-IV or ADHD Medication (n = 148)
UnadjustedAdjustedaUnadjustedAdjusteda
Below detection limit (n = 407)1.0 (reference)
Lower than median (n = 366)b1.11 (0.63–1.97)1.05 (0.57–1.95)1.36 (0.76–2.44)1.22 (0.65–2.27)
Higher than median (n = 366)c1.83 (1.18–2.82)1.93 (1.23–3.02)2.04 (1.30–3.22)2.12 (1.32–3.41)
  • a Adjusted for gender, age, race/ethnicity, PIR, and fasting duration.

  • b Range: 0.9 to 30.4 nmol × g of creatinine per L; median: 11.2 nmol × g of creatinine per L.

  • c Range: 30.4 to 7932.0 nmol × g of creatinine per L; median: 97.6 nmol × g of creatinine per L.