MOSQUITO PROTECTION HOUSEHOLD
MODULE INFORMATION
PURPOSE OF THE MODULE:
To monitor household protective behaviour against mosquitoes
MODULE HISTORY:
May 2001 (Wave 5) – The West Nile Virus module was added to RRFSS and included questions on WNV awareness, mosquito protection and bird surveillance
May 2002 (Wave 17) – The West Nile Virus module was divided into three modules:
- West Nile Virus
- Mosquito Protection
- Bird Surveillance
May 2004 (Wave 41) – The Mosquito Protection module was divided into two modules:
- Mosquito Protection Personal
- Mosquito Protection Household
DATA DICTIONARY HISTORY:
Created: October 20, 2005
Revised: October 5, 2017
MODULE QUESTIONS
VARIABLE NAME: wnv4
VARIABLE HISTORY:
Wave 41 – moved from Mosquito Protection module to this module
Wave 17 – moved from West Nile Virus module to Mosquito Protection module
Wave 5 – new variable
Introduction:
Now we would like to ask about areas around your home and mosquitoes.
QUESTION:
Wave 17+
Are there any containers that collect water outside of your home or apartment such as buckets, pots, barrels, bird baths or old tires?
Interviewer instruction: if required, 'containers' do not include swimming pools that are not cleaned and chlorinated, ditches or low lying areas
Waves 5-16
Are there any areas or objects that collect water outside of your home or apartment?
Interviewer instruction(added wave 6):if required, “areas or objects such as bird baths, rain barrels, planters, swimming pools that are not cleaned and chlorinated, old tires, collection of water after rain, open gutters”.
Response Options (all waves)
1yes
5no
8don’t know
9refused
ANALYSIS ISSUES:
- Question wording changed (see above) May 2002 (wave 17) and data collected is not comparable to earlier waves
- Interviewer instruction added June 2001 (wave 6) and revised May 2002 (wave 17) as above
- Introduction added June 2004 (wave42) and only used if respondent was not asked the Mosquito Protection Personal module
- For May 2001 to April 2004 (waves 5-40), not asked of respondents who answered (wnv1=6 or wnv1=7) AND (wnv2=6 or wnv2=7), mosquitoes not a problem etc.
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS:None
EVALUATION QUESTIONS: Waves 7-8, 17-21, 41
MODULE QUESTIONS
VARIABLE NAME: wnv5
VARIABLE HISTORY:
Wave 41 – moved from Mosquito Protection module to this module
Wave 17 – moved from West Nile Virus module to Mosquito Protection module
Wave 5 – new variable
QUESTION:
Wave 17+
Does water stay in these containers for more than 7 days at a time?
Interviewer instruction: if required, "containers" do not include swimming pools that are not cleaned and chlorinated, ditches or low lying areas.
Waves 5-16
Does the water stay in these areas or objects for more than 7 days at a time?
Interviewer instruction(added wave 6):if required, “areas or objects such as bird baths, rain barrels, planters, swimming pools that are not cleaned and chlorinated, old tires”.
Response Options(see below for changes over time)
1yes
2yes (R volunteers they chemically treat the water, i.e. BTI,
larvicide, pesticide, bleach)
4no (R volunteers that a bylaw prohibits this)
5no (includes R empties it, dries up)
7R volunteers it depends on the weather
8don’t know
9refused
ANALYSIS ISSUES:
- Question wording changed (see above) May 2002 (wave 17) and data collected is not comparable to earlier waves
- Interviewer instruction added June 2001 (wave 6) and revised May 2002 (wave 17) as above
- Asked only if respondent says they have containers that collect water (wnv4=1)
- For May 2001 to April 2004 (waves 5-40), not asked of respondents who answered (wnv1=6 or wnv1=7) AND (wnv2=6 or wnv2=7), mosquitoes not a problem etc.
- Response option 5 revised May 2002 (wave 17) to include “(includes R empties it, dries up)”
- Response options 2 and 4 added June 2003 (wave 30)
- It is recommended that option 7 “R volunteers it depends on the weather” should be treated the same as option 1 “yes”.
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Waves 7-8, 17-21, 41
MODULE QUESTIONS
VARIABLE NAME: wnv5b
VARIABLE HISTORY:
Wave 17 – deleted
Wave 7 – new variable in West Nile Virus module
QUESTION:
Is that because the water gets emptied out or because it dries up?
Response Options
1water gets emptied
5water dried up
7R volunteers some times they empty it, sometimes it dries up
8don't know
9refused
ANALYSIS ISSUES:
- Deleted May 2002 (wave 17) and incorporated into response option 5 of wnv5
- Not asked of respondents who answered (wnv1=6 or wnv1=7) AND (wnv2=6 or wnv2=7), mosquitoes not a problem etc.
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Waves 7-8
MODULE QUESTIONS
VARIABLE NAME: wnv6a
VARIABLE HISTORY:
Wave 41 – moved from Mosquito Protection module to this module
Wave 17 – moved from West Nile Virus module to Mosquito Protection module
Wave 5 – new variable
QUESTION:
Do you leave any windows or doors open for ventilation in the summer?
Interviewer instruction: if required, "summer means from May to October".
Response Options
1yes (includes some of the time)
5no (includes I can’t open my windows, uses air conditioning)
8don’t know
9refused
ANALYSIS ISSUES:
- Interviewer instruction added June 2001 (wave 6)
- For May 2001 to April 2004 (waves 5-40), not asked of respondents who answered (wnv1=6 or wnv1=7) AND (wnv2=6 or wnv2=7), mosquitoes not a problem etc.
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Waves 7-8, 17-21, 41
MODULE QUESTIONS
VARIABLE NAME: wnv6b
VARIABLE HISTORY:
Wave 41 – moved from Mosquito Protection module to this module
Wave 17 – moved from West Nile Virus module to Mosquito Protection module
Wave 5 – new variable
QUESTION:
Do you have screens covering these windows and doors?
Response Options
1yes
5no
7some of them
8don’t know
9refused
ANALYSIS ISSUES:
- Asked only if household leaves windows or doors open (wnv6a=1)
- For May 2001 to April 2004 (waves 5-40), not asked of respondents who answered (wnv1=6 or wnv1=7) AND (wnv2=6 or wnv2=7), mosquitoes not a problem etc.
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Waves 7-8, 17-21, 41
MODULE QUESTIONS
VARIABLE NAME: wnv7
VARIABLE HISTORY:
Wave 41 – moved from Mosquito Protection module to this module
Wave 17 – moved from West Nile Virus module to Mosquito Protection module
Wave 5 – new variable
QUESTION:
Do any of these screens need to be repaired so that there are no tears or holes where mosquitoes could get through?
Response Options
1yes
5no
7I don’t leave the window open if there is a hole in the screen
8don’t know
9refused
ANALYSIS ISSUES:
- Asked only if household leaves windows or doors open and windows or doors have screens on them (wnv6a=1) and (wnv6b=1 or wnv6b=7)
- For May 2001 to April 2004 (waves 5-40), not asked of respondents who answered (wnv1=6 or wnv1=7) AND (wnv2=6 or wnv2=7), mosquitoes not a problem etc.
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Waves 7-8, 17-21, 41
MODULE QUESTIONS
VARIABLE NAME: wnv7a
VARIABLE HISTORY:
Wave 41 – new variable
QUESTION:
This summer*, have you or someone in your household, added a larvicide such as Aquabac to standing water outside your home or apartment to try to reduce the number of mosquitoes?
Interviewer instruction: if asked, a larvicide is a type of pesticide used to kill mosquitoes before they mature into adults. If R says they are not sure what we mean but they do not put anything in the water, code as "no".
Response Options
1yes
5no
7mosquitoes not a problem/no standing water/live in apartment
without a balcony
8don’t know
9refused
*Seasonal variation in question wording:
“This summer” – May to September
“Last summer” – October to April
ANALYSIS ISSUES:
- Question wording changed from “So far this summer“ to “This summer”, September 2005 (wave 57)
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Wave 41
MODULE QUESTIONS
VARIABLE NAME: wnv7b
VARIABLE HISTORY:
Wave 41 – new variable
QUESTION:
This summer*, have you used a bug zapper or magnet outside your home or apartment to try to reduce the number of mosquitoes?
Interviewer instruction: if asked, "bug zappers and magnets are used to attract and kill mosquitoes."
Response Options
1yes
5no
7mosquitoes not a problem/no standing water/live in apartment
without a balcony
8don’t know
9refused
*Seasonal variation in question wording:
“This summer” – May to September
“Last summer” – October to April
ANALYSIS ISSUES:
- Not asked if respondent already said mosquitoes not a problem etc. (wnv7a=7)
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Wave 41
MODULE QUESTIONS
VARIABLE NAME: wnv7c
VARIABLE HISTORY:
Wave 41 – new variable
QUESTION:
Have you put up a bat house outside your home or apartment in an effort to try to reduce the number of mosquitoes?
Interviewer instruction: if R tells you bats occur naturally in the area so they do not need to put up a bat house, code "no" and continue. If required, it does not matter when R put up the bat house. If R indicates they put one up some time ago, determine if the bat house is still up. If still up code "yes," if no longer up code "no."
Response Options
1yes
5no
7mosquitoes not a problem/no standing water/live in apartment
without a balcony
8don’t know
9refused
ANALYSIS ISSUES:
- Not asked if respondent already said mosquitoes not a problem etc. (wnv7a=7 or wnv7b=7)
- Do not apply household weight
COMPARABILITY TO OTHER SURVEYS: None
VALIDITY/RELIABILITY TESTS: None
EVALUATION QUESTIONS: Wave 41
MODULE INDICATORS
POTENTIAL MOSQUITO BREEDING AREAS: HOUSEHOLD STANDING WATER
INDICATOR DESCRIPTION:
% of households who report that they have untreated water that stands more than 7 days outside their homes.
INDICATOR OBJECTIVES:
- To reduce the possibility of human contact with mosquitoes through source reduction measures
ANALYSIS CHECK LIST:
- Question wording changed May 2002 (wave 17) for wnv4 and wnv5 and data collected is not comparable to earlier waves
- Option 7 “R volunteers it depends on the weather” should be treated the same as option 1 “Yes” and included in the numerator. “It depends” can be interpreted as the respondent sometimes has containers that collect water for more than 7 days.
- Do not apply household weight
METHOD OF CALCULATION:
Wave 17+
# households reporting that they have containers that collect water that stands more than 7 days outside their homes(wnv5=1, 7)
all households
MODULE INDICATORS
USE OF SCREENS AND WINDOWS TO PREVENT MOSQUITO EXPOSURE
INDICATOR DESCRIPTION:
% of households reporting that they do not leave windows or doors open OR that open windows or doors have screens with no holes or tears
INDICATOR OBJECTIVES:
- To reduce the possibility of human contact with mosquitoes through household protective measures
ANALYSIS CHECK LIST:
- Do not apply household weight.
METHOD OF CALCULATION:
# households reporting that they do not leave windows or doors open OR that all open windows or doors have screens with no holes or tears(wnv6a=5 or (wnv6b=1 and (wnv7=5 or wnv7=7)))
all households
MODULE INDICATORS
USE OF Larvicide to reduce the number of mosquitoes
INDICATOR DESCRIPTION:
% of households that used a larvicide to reduce the number of mosquitoes outside the home or apartment
INDICATOR OBJECTIVES:
- To reduce the possibility of human contact with mosquitoes through reduction of mosquitoes
ANALYSIS CHECK LIST:
- Do not apply household weight
METHOD OF CALCULATION:
# households that used a larvicide to try to reduce the number of mosquitoes outside the home or apartment(wnv7a=1)
all households
MODULE INDICATORS
USE OF bug zappers or magnets to reduce the number of mosquitoes
INDICATOR DESCRIPTION:
% of households that used a bug zapper or magnet to reduce the number of mosquitoes outside the home or apartment
INDICATOR OBJECTIVES:
- To reduce the possibility of human contact with mosquitoes through reduction of mosquitoes
ANALYSIS CHECK LIST:
- Do not apply household weight
METHOD OF CALCULATION:
# households that used a bug zapper or magnet to try to reduce the number of mosquitoes outside the home or apartment(wnv7b=1)
all households
MODULE INDICATORS
USE OF Bat houses to reduce the number of mosquitoes
INDICATOR DESCRIPTION:
% of households that put up a bat house to reduce the number of mosquitoes outside the home or apartment
INDICATOR OBJECTIVES:
- To reduce the possibility of human contact with mosquitoes through reduction of mosquitoes
ANALYSIS CHECK LIST:
- Do not apply household weight
METHOD OF CALCULATION:
# households that put up a bat house to try to reduce the number of mosquitoes outside the home or apartment(wnv7c=1)
all households
Rapid Risk Factor Surveillance System (RRFSS)