Hearing Impairment and Incident Dementia: Findings from the English Longitudinal Study of Ageing.

Objectives: To determine whether hearing loss is associated with incident physician-diagnosed dementia in a representative sample.

Design: Retrospective cohort study.

Setting: English Longitudinal Study of Ageing.

Trends of people using drugs and opioid substitute treatment recorded in England and wales general practice (1994-2012).

Background: Illicit drug use is a multifaceted public-health problem with potentially serious impacts. The United Kingdom has one of the highest prevalence of illegal drug use in Europe. Reduction of overall illegal drug use in England and Wales has decreased from 11% to 8.