Deanna E. White, Adam Stevens, John Barbaro , Kristy McGill and Lynne Russell

1. Deanna E. White, Adam Stevens, John Barbaro, Kristy McGill and Lynne Russell

2. What isRRFSS SurveillanceSystem Rapid Risk Factor

3. Key Public Health Issues Able to Monitor  Family History Obesity Hypertension Diabetes Smoking

4. to New Public Health Issues Adaptable 

5. Local 

6. Timely 

7. To support program planning and evaluation To advocate for public policy development To improve community awareness of risks for CDs, IDs and injuries How Can We Use RRFSS? 

8. Who Can Join RRFSS?  Any Public Health Unit in Ontario … but thereis a cost.

9. There are three 4-month data cyclesper year. When is the  Survey Conducted?

10. How is Data Collected • Institute for Social Research (ISR) at York University

11. How Long is the Survey? 

12. How is the Questionnaire  Organized?

13. Decided annually by all participating HUs • Asked for at least one year • May rotate alternating years • Mandatory – CANNOT opt out of these TOBACCO USE AGE SEX BMI INCOME

14. Selected by each HU individually • Can add or delete each cycle

15. What are some of  the Topics/Modules? See QMap Your Turn! Are there any topics you would be interested in? Please circle the topic.

16. Must We Use the  Entire Module? But … • Must start at the beginning of a module • Cannot jump back in once stopped No

17. Can We Develop  Modules? but you must followa process: • Complete Module Submission Request Form • Should be applicable to multiple PHUs • Can work with your own if no other PHU interested Yes

18. How to Choose Optional • Align with health unit’s data needs • Measure the variable over time(decrease in chronic disease prevalence?) • Data is not available from other data sources(use and awareness of parenting programs)

19. What is the Sample Size?  400 3 1,200 interviews/HU cycles/year interviews/year RRFSS has a larger sample size than the CCHS in some PHUs.

20. Who is Included  in the Sample? • 18 years of age and older • English or French speaking • Reside in private homes • With landline • some cell phone numbers were included

21. Is the Sample Size  Big Enough?

22. Sampling Procedures • Random selection of households – using random digit dialing • Random selection of respondent – household member with next birthday

23. Household Weights • Maximize ability to generalize the survey results (the sample) to the population • Probability of selection depends on size of household

24. Household Weights Size ofHousehold ChanceSelected Weight 1adult 100% Given weight of 1 2adults 50% Given weight of 2 3adults 33.3% Given weight of 3 This helps to prevent under-representation in larger households and over-representation in small households.

25. Calculations were used to determine sample size for results to be generalizable So, is it Still Representative?

26. Is the Survey Valid & Reliable? Yes! • Modeled on the Behavioural Risk Factor Surveillance System (BRFSS) conducted by the Centres for Disease Control and Prevention (CDC) in Atlanta • Many questions also taken from the CCHSand the National Population Health Survey(NPHS) • The original design was tested for reliability and validity

27. How Do We Ensure Accurate Results? • Confidence intervals & coefficient of variation

28. The Confidence  Interval (CI) • How confident are we in the point estimate (i.e., value)? • E.g., 6% … (85% CI: 3% - 9%). What does 95% mean? • … based on probability.

29. Probability 

30. Probability 

31. Probability 

32. Significance Testing • Likely happened • The results are probable Statistically Significant • It could have happened by chance alone NOT Statistically Significant What does this have to do with the CI?

33. Significance Testing • We use the CI to determine whether something is statistically significant. • If the CIs do not overlap than they are SS • Example: Percentage of females vs males who smoke:Females: 70% (60%-80%)Males: 30% (20%-40%) Your Turn! Please complete section one. Circle statistically significant statements.

35. Coefficient of Variation • Refers to the precision of the estimate • Usually a result of small numbers (i.e., 2/800) • Interpret with caution presented with an *asterisk • An empty cell means the value is not precise(in fact, incorrect), so we cannotreport this number Your Turn! Please circle the asterisk in the table.

36. RRFSS is Self-Reported?  Are there limitations to this?

37. Distorted Perceptions

38. Distorted Perceptions

39. Hawthorne Effect In groups of two, please answer the following … How many times per day, week or month do you drink 100% fruit juices such as orange, grapefruit, or tomato juice? How often do YOU wear a seatbelt when YOU DRIVE a car, van or truck: Would you say, all of the time, most of the time, about 1/2 the time, less than 1/2 the time, or never or almost never?

40. Memory Recall What is the total amount of time you spent sitting, last Wednesday? (hours & minutes)

41. Sensitivity  In groups of two, please answer the following … What is your age? How much do you weigh? In your lifetime, have you Ever had suicidal thoughts? What is your yearly total Income (before taxes)?

42. Self-Reported Measures

43. What RRFSS Recall