Table A.11.2.

Adjusted Hazard Ratios for Serious Cardiovascular Events, According to Use of ADHD Medications, Including Cardiac Cases Excluded for Having Severe Underlying Cardiac Disease.

ADHD medication use	Person- years	Events	Rate/100,000 person-years	Hazard Ratio†	95% confidence interval
Nonuser	1,597,962	54	3.38	1.00	Reference
Former user	607,475	27	4.44	1.01	0.58–1.78
Current User	373,667	7	1.87	0.71	0.29–1.72

^†Hazard ratios estimated with Cox regression models which included site-specific propensity score decile, site, medical conditions (serious cardiovascular disease, serious chronic illness), psychiatric conditions (major psychiatric illness, substance abuse, and antipsychotic use), utilization variables (medical hospitalization and general medical care access), age, and calendar year.