Characteristic | Categories | USA (n=801)* | UK (n=806)† | France (n=805)‡ | |||
Sample | Population | Sample | Population | Sample | Population | ||
Gender | Female | 50% | 51% | 52% | 51% | 53% | 52% |
Age | 18–64 | 80% | 80% | 77% | 77% | 76% | 76% |
≥65 | 20% | 20% | 23% | 23% | 24% | 24% | |
Ethnicity | White | 69% | 78% | 88% | 87% | – | – |
Other | 30% | 22% | 11% | 13% | – | – | |
Prefer not to say | 1% | – | 1% | – | – | – | |
Annual household incomea | <$50 000/£20 000/€26 000 | 43% | – | 46% | – | 53% | – |
≥$50 000/£20 000/€26 000 | 49% | – | 46% | – | 34% | – | |
Prefer not to say | 8% | – | 9% | – | 13% | – | |
Marital status | Living as a couple | 60% | Unavailableb | 56% | 58% | 54% | Unavailablec |
Not living as a couple | 39% | Unavailableb | 44% | 42% | 45% | Unavailablec | |
Prefer not to say | 1% | – | 1% | – | 1% | – | |
Education | No university degree | 49% | 71% | 60% | 73% | 64% | 76% |
University degree | 45% | 29% | 37% | 27% | 29% | 24% | |
Prefer not to say | 5% | – | 3% | – | 7% | – | |
Settlement type | Urban | 76% | 81% | 77% | 81% | 78% | 78% |
Rural | 24% | 19% | 23% | 19% | 22% | 22% | |
Vaccination status | <65 vaccinated | 43% | 37% | 27% | Unavailabled | 16% | Unavailablee |
≥65 vaccinated | 66% | 65% | 75% | 73% | 50% | 53% |
*Population estimates for gender, age, ethnicity, income, marital status, education and settlement type are 2012/2013 estimates from the US Census Bureau.59 Influenza vaccination status is from the 2013/2014 season.4 aThe reference income band was the closest to the US 2012/2013 median household income ($53 046).59 bCensus data only include persons who are married with spouse present, married with spouse absent and separated (42%).
†Population estimates for gender, age, ethnicity, marital status, education and settlement type are 2011 and 2012/2013 estimates from the UK Office for National Statistics.60 61 Influenza vaccination status is from the 2013/2014 season.5 dAvailable data for <65s include children. aThe reference income band was the closest to the UK 2012/2013 median household income (£22 880).62
‡Population estimates for gender, age, income, marital status, education and settlement type are 2011 and 2012/2013 estimates from France’s National Institute of Statistics and Economic Studies.63 Ethnicity was not collected due to country-specific data protection restrictions. Influenza vaccination status is from the 2013/2014 season.40 eAvailable data for <65s include children.aThe reference income band was the closest to France’s 2012/2013 median household income (€29 330).63 cCensus data only include people who are legally married (49%).
Note: Differences between samples and populations were evaluated using Fisher's exact test. Except for education in the USA (p<0.001), we found no significant differences. Percentages may not total 100 due to rounding.