2.5 Cross section studies

Question 1

What type of study are cross sectional studies?

Answer 1

Observational

Question 2

What are cross sectional studies?

Answer 2

Large scale national surveys or databases capturing dif aspects of the population. Like a snap shot.

Question 3

What is cross sectional also another type of study of?

Answer 3

Prevelance

Question 4

What 3 things do cross sectional studies seek?

Answer 4

Associations (not causation). Generate and test hypotheses. Measure change/trends

Question 5

What are the 2 cross sectional approaches?

Answer 5

1. Collect data on each member of population. 2. Take a sample of population and draw inferences to the remainder.

Question 6

What are 2 ways to collect study data/info in cross sectional studies?

Answer 6

1. Questionnaires/survey. 2 Physical assessments.

Question 7

Many of the US cross sectional studies are survey based products of what?

Answer 7

NCHS (national center for health statistics).

Question 8

What are 4 strengths to cross sectional studies?

Answer 8

1. quick 2. cheap. 3. can be analyzed like a case control or cohort study. 4.Useful for prevalence rates

Question 9

What are weaknesses to cross sectional studies?

Answer 9

1. Prevalent cases may represent survivors. 2. Difficult to study disease with low frequencies. 3.Unable to generate Incidence rates. 4. Problems in determining temporal relationship of presumed cause and effect.

Question 10

What does NHANES mean?

Answer 10

National health and nutrition examination survey

Question 11

What does NHIS mean?

Answer 11

National health interview survey

Question 12

What does NAMCS mean?

Answer 12

National ambulatory medical care survey

Question 13

What does NHCS mean?

Answer 13

National hospital care survey

Question 14

What does BRFSS mean?

Answer 14

Behavioral Risk Factor Surveillance System.

Question 15

What is NHANES used for?

Answer 15

Assesses the health and nutritional status of adults and children. Interviews and PE.

Question 16

What is NHIS used for?

Answer 16

Health of the civilian, non-institutionalized population. Data collected through personal household interview. Door to Door.

Question 17

What is NAMCS used for?

Answer 17

info about the provision and use of Ambulatory medical care services in the US. Bases on sample of visits to non federal, non institutional doctors primary engaged in direct pt care.

Question 18

What is the NHCS used for?

Answer 18

Describe national patters of healthcare delivery in non federal hospital based settings. Discharges from inpatient,ER departments. Integrates 3 surveys: NHDS, NHAMCS, DAWN.

Question 19

What does DAWN stand for?

Answer 19

drug abuse warning network

Question 20

What is BRFSS used for?

Answer 20

Telephone health surveys that collects info on health risk behaviors, preventative health practices, and health care access primarily related to chronic disease and injury. Interviewed via phone.