| 1 | A | B | C | D |
| --- | --- | --- | --- | --- |
| 2 | comparison of the characteristics of national health surveys |  |  |  |
| 3 |  | canadian community health survey | national health interview survey | scottish health survey |
| 4 | country and population size | canada, 37.6 million residents | united states of america, 329 million | scotland, 5.3 million |
| 5 | primary purpose | support national, provincial and intraprovincial health surveillance | support national health surveillance and track progress toward achieving national health objectives | support national health surveillance, mainly for cardiovascular disease and associated risk factors |
| 6 | survey design | cross-sectional household interview survey | cross-sectional household interview survey | cross-sectional household interview survey |
| 7 | administration history | biennially from 2001 and annually from 2008 | annually from 1957 | 1995, 1998 and 2003, and then annually from 2008 |
| 8 | content | health status, heath care utilization and health determinants | health status, heath care utilization and health determinants | health status, heath care utilization, health determinants and biological measurements |
| 9 | target population | non-institutionalized canadians 12 years of age and older | non-institutionalized population of the united states | persons living in private households in scotland |
| 10 | exclusions | persons living on reserves, full-time members of the canadian forces, the institutionalized population and residents of certain remote regions | persons in long-term care facilities, on active duty with the armed forces and in prison, and u.s. nationals living in foreign countries | persons not living in private households and residents of certain remote islands |
| 11 | sampling methods | multistage area-based probability sampling | multistage area-based probability sampling | multistage stratified clustered probability sampling |
| 12 | administration methods | computer-assisted personal interviews (capi) and computer-assisted telephone interviews | personal household interviews using capi | personal household interviews using capi |
| 13 | survey length | approximately 45 minutes | approximately 60 minutes | approximately 60 minutes |
| 14 | modules | core content + province-specific optional modules + rapid response content | core content + co-sponsored supplementary questions | core content + rotating biennial modules since 2008 + biological module from a subsample |
| 15 | sample size | approximately 130,000 respondents per cycle from 2001 to 2006; approximately 65,000 respondents annually since 2007 | approximately 30,000 adult respondents annually since 1997 | approximately 7,000 adult respondents per survey until 2011; approximately 4,500 adults annually since 2011 |
| 16 | small-area geographies | powered to produce estimates for 110 health regions every two years | selected estimates may be reliable at the state level with data combinations from several survey years | powered to produce estimates for 14 health boards every four years since 2008 |
| 17 | response rates | 81% in 2003; 76% in 2008 | 72% in 2000; 69% in 2005 | 55% to 60% from 2003 to 2010 |
| 18 | available linkages | mortality and health administrative data including hospitalizations | mortality data | mortality and health administrative data including hospitalizations |

Question: what was the administration history of the canadian community health survey?
Answer: biennially from 2001 and annually from 2008

Question: what was the administration history of the national health interview survey?
Answer: annually from 1957

Question: what was the administration history of the scottish health survey?
Answer: 1995, 1998 and 2003, and then annually from 2008