COVID‑19 contributed, directly and indirectly, to a 16% increase in the expected number of deaths in 2020 and the first half of 2021 across OECD countries. Life expectancy fell in 24 of 30 countries with comparable data, with drops particularly large in the United States (‑1.6 years) and Spain (‑1.5 years).

COVID‑19 has disproportionately hit vulnerable populations. More than 90% of recorded COVID‑19 deaths have occurred among those aged 60 and over. There has also been a clear social gradient, with disadvantaged people, those living in deprived areas, and most ethnic minorities and immigrants at higher risk of infection and death.

Vaccinations have reduced the risk of severe illness and death from COVID‑19, with the share of people fully vaccinated reaching over 70% in 9 countries and 15 countries starting booster programmes across the OECD for vulnerable groups, as of 18 October. Evidence points to vaccines being somewhat less effective against stopping symptomatic disease from the delta variant, but still highly effective (over 90%) against hospital admissions.

The mental health impact of the pandemic has been huge, with prevalence of anxiety and depression more than double levels observed pre-crisis in most countries with available data, most notably in Mexico, the United Kingdom and the United States.

Long COVID‑19 has made the road to recovery slow and difficult. In the United Kingdom, for example, 1.1 million people (1.7% of the population) reported long COVID‑19 symptoms as of early September 2021. In the United States, recent research has estimated that 37% of patients suffered from at least one long COVID‑19 symptom 4‑6 months after diagnosis.

Smoking, harmful alcohol use and obesity are the root cause of many chronic conditions, and increase the risk of people dying from COVID‑19.

Daily smoking rates have decreased in most OECD countries over the last decade, but 17% still smoke daily. Rates reached 25% or more in Turkey, Greece, Hungary, Chile and France.

People who drink heavily range from 4% to 14% of the population across the OECD countries analysed, yet consume 31% to 54% of alcohol. Harmful drinking is particularly high in Latvia and Hungary.

Obesity rates continue to rise in most OECD countries, with an average of 60% of adults measured as overweight or obese. Obesity rates are highest in Mexico, Chile and the United States.

Among adolescents, about 16% of 15‑year‑olds smoked at least once per month, and over 30% had been drunk at least twice in their lifetime, on average across OECD countries. Just over 18% were overweight or obese, with only 14% achieving WHO recommendations on physical activity.

Ambient (outdoor) air pollution caused about 29 deaths per 100 000 people on average, and varied more than seven‑fold across OECD countries. OECD projections estimate that ambient air pollution may cause between 6 and 9 million premature deaths a year worldwide by 2060.

Spending on disease prevention remains relatively low, accounting for only 2.7% of all health spending on average.

COVID‑19 has had a major indirect impact on those not infected with the virus. For example, breast cancer screening fell by an average of 5 percentage points in 2020 compared to 2019.

Waiting times for elective surgeries, already a policy issue in many countries pre‑pandemic, increased. The median number of days on a waiting list increased on average by 58 days for hip replacement, and 88 days for knee replacement in 2020, as compared to 2019.

In-person consultations per capita dropped in seven of eight countries with 2020 data, and by up to 30% in Chile and Spain. However, declines in in-person consultations were offset to some extent by increased teleconsultations.

Indeed, the pandemic has accelerated the digital transformation of health care across OECD countries. For example, an average of 45% of adults had a medical teleconsultation in 2021. Further, around 60% of adults searched for health information online in 2020, up from 36% in 2010.

Despite improvements in patient safety over time, on average almost half of hospital staff thought that their workplace was not good enough at preventing medical errors.

Strong primary care systems keep people well and treat most uncomplicated cases. They also relieve pressure on hospitals: avoidable admissions for chronic conditions have fallen in most OECD countries over the past decade, with large improvements in Korea, Lithuania and the Slovak Republic. However, primary care represents only 13% of health spending on average.

Acute care services continue to improve in their fundamental task of keeping people alive. In almost every OECD country, 30‑day mortality following a heart attack or stroke is lower than ten years ago. New data on readmissions, one‑year mortality and medication prescriptions after hospitalisation point to slight improvements in the integration of care over time.

A deeper understanding of quality of care requires measuring what matters to people. Health systems are increasingly asking patients about the outcomes and experiences of their care. Preliminary results show improvements in patient-reported outcomes. For example, following hip replacement, an individual’s quality of life improved on average by 44% based on the Oxford Hip Score.

Preliminary data for 2020 indicates that quality of care in primary and acute care settings has often been maintained despite the severe pressures faced, although access to many of these services has been difficult.

Prior to the pandemic, spending on health amounted to over USD 4 000 per person on average across OECD countries, reaching almost USD 11 000 in the United States. Inpatient and outpatient services make up the bulk of health spending, typically accounting for 60% of all health spending.

With the onset of COVID‑19, sharp increases in health spending occurred in many countries, notably within Europe. Coupled with reductions in economic activity, the average health spending to GDP ratio jumped from 8.8% in 2019 to 9.7% in 2020. Countries severely affected by the pandemic reported unprecedented increases in the share of GDP allocated to health. The United Kingdom, for example, estimated an increase from 10.2% in 2019 to 12.8% in 2020, while Slovenia anticipated its share of spending on health rising from 8.5% to more than 10%.

Although the number of doctors and nurses have increased over the past decade in nearly all OECD countries, shortages persist. These shortages have been thrown into sharp relief during the pandemic, with a lack of health and long-term care staff proving to be more of a binding constraint than hospital beds and equipment.

Population ageing increases demand for health services, with the share of the population aged 65 years and over reaching 17% in 2019. COVID‑19 has underscored pre‑existing weaknesses in the long-term care sector, including challenges with infection control in facility-based care.