Our analyses by age as a continuous variable reveal two key findings. (1) Regardless of age and across the age spectrum, people with COVID-19 had a higher risk of all the neurologic outcomes examined in this analysis. (2) Our interaction analyses suggest that the effect of COVID-19 on risk of memory and cognitive disorders, sensory disorders and other neurologic disorders (including Guillain–Barré syndrome and encephalitis or encephalopathy) is stronger in younger adults; the effects of these disorders on younger lives are profound and cannot be overstated; urgent attention is needed to better understand these long-term effects and the means to mitigate them. Equally troubling is the stronger effect of COVID-19 on mental health disorders, musculoskeletal disorders and episodic disorders in older adults, highlighting their vulnerability to these disorders following SARS-CoV-2 infection.