Table 1.
Child/adolescent demographics by study group
| ADHD group (n = 213) | T1DM group (n = 58) | Control group (n = 117) | P value | |
|---|---|---|---|---|
| Mean (SD) age, years | 12.2 (2.7) | 12.1 (2.5) | 10.1 (2.8) | <0.001* |
| Males, n (%) | 190 (89.2) | 25 (43.1) | 48 (41.0) | <0.001** |
| Mean (SD) SIMD ranka | 2449 (1796) | 3239 (1954) | 2207 (1987) | 0.018*** |
| Disease severity | ||||
| Mean ADHD rating scale total score (range; SD) | 23.5 (1–50; 10.0) | NA | NA | – |
ADHD attention-deficit/hyperactivity disorder, NA not available, SD standard deviation, SIMD Scottish Index of Multiple Deprivation, T1DM type 1 diabetes mellitus
* One-way analysis of variance F test (degrees of freedom: 2, 385) = 25.5
** Pearson χ 2 (2) = 98.2, n = 387
*** One-way analysis of variance F test (degrees of freedom: 2, 385) = 4.1
aMeasure of socioeconomic status