Effectiveness of Methylphenidate in the 10-Month Continuation Phase of the Preschoolers with ADHD Treatment Study (PATS)
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Bibliographic record
Abstract
OBJECTIVE: The aim of this study was to examine immediate-release methylphenidate effectiveness during the 10-month open-label continuation phase of the Preschoolers with Attention-Deficit/Hyperactivity Disorder (ADHD) Treatment Study (PATS). METHODS: One hundred and forty preschoolers with ADHD, who had improved with acute immediate-release methylphenidate (IR-MPH) treatment, entered a 10-month, open-label medication maintenance at six sites. Assessments included the Clinical Global Impression-Severity (CGI-S), CGI-Improvement (CGI-I), Children's Global Assessment Scale (C-GAS), Swanson, Nolan, and Pelham Questionnaire (SNAP), Scale Strengths and Weaknesses of ADHD-Symptoms and Normal Behaviors (SWAN), Social Competence Scale, Social Skills Rating System (SSRS), and Parenting Stress Index-Short Form (PSI-SF). RESULTS: For the 95 children who completed the 10-month treatment, improvement occurred on the CGI-S (p = 0.02), CGI-I (p < 0.01), C-GAS (p = 0.001), and SSRS (p = 0.01). SNAP and SWAN scores remained stable. Forty five children discontinued: 7 for adverse effects, 7 for behavior worsening, 7 for switching to long-acting stimulants, 3 for inadequate benefit, and 21 for other reasons. The mean MPH dose increased from 14.04 mg/day +/- SD 7.57 (0.71 +/- 0.38 mg/kg per day) at month 1 to 19.98 mg/day +/- 9.56 (0.92 +/- 0.40 mg/kg per day) at month 10. CONCLUSIONS: With careful monitoring and gradual medication dose increase, most preschoolers with ADHD maintained improvement during long-term IR-MPH treatment. There was substantial variability in effective and tolerated dosing.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it