Table:
canadian community health survey
national health interview survey
scottish health survey

country and population size
canada, 37.6 million residents
united states of america, 329 million
scotland, 5.3 million

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

survey design
cross-sectional household interview survey
cross-sectional household interview survey
cross-sectional household interview survey

administration history
biennially from 2001 and annually from 2008
annually from 1957
1995, 1998 and 2003, and then annually from 2008

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

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

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

sampling methods
multistage area-based probability sampling
multistage area-based probability sampling
multistage stratified clustered probability sampling

administration methods
computer-assisted personal interviews (capi) and computer-assisted telephone interviews
personal household interviews using capi
personal household interviews using capi

survey length
approximately 45 minutes
approximately 60 minutes
approximately 60 minutes

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

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

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

response rates
81% in 2003; 76% in 2008
72% in 2000; 69% in 2005
55% to 60% from 2003 to 2010

available linkages
mortality and health administrative data including hospitalizations
mortality data
mortality and health administrative data including hospitalizations

Statement: the national health interview survey has been administered annually since 1957.
Question: what was the administration history of the national health interview survey?
Answer: annually from 1957