The low level of preventable hospital admissions for asthma and chronic obstructive pulmonary diseases (COPD) also tends to show that proper prevention and primary care interventions are in place (Panel C). However, some preventive practices are lagging: avoidable hospital admissions for diabetes are comparatively high, and vaccination rates for risky populations have declined (OECD/EU, 2016). Age-sex standardised rate of adults aged 45 years and over based on admission data. Defined daily doses are the assumed average doses per day for drugs used for its main indication in adults (e.g. 3 grams for oral aspirin). They are constant across countries.