Cap 7
Data collection manual - National Roadside Survey: Prevalence of positive blood alcohol concentration (BAC) and other psychoactive substances in professional and private drivers
in Brazil
This manual aims to standardize the procedures for data collection to be held in the capitals of all states of Brazil and describe each of these processes:
1. Schedule
2. Previous contact with police stations and police cars selected 3. List of items needed
4. Previous organization for data collection 5. Arrival to the capital of the collection
6. Arrival at the place of the data collection (Highway Patrol station) 7. Approaching drivers
8. Login PDA and observational data – see attachment of the PDA 9. Presentation of the data collector
10.Reading the consent term
11.Saliva collection – see manual of the saliva collection 12.Coercion Scale
13.Final moment (delivery of the gift, feedback and thanks) 14.Back to Porto Alegre
15.Attachments (1. Quotas vehicle types X capitals 2 PDA’s manual 3. Consent term 4. Saliva’ s manual 5. Coercion Scale 6. Flowchart)
Description: 1. Schedule
The data collections must be held on Fridays and Saturdays, from 12am to 24pm, with 5 intervals, at least 30 minutes to 1 hour at most, for the rest of the data collection and support teams and regularization of the flow in the road, and according to a predetermined schedule.
2. Previous contact with police stations and police cars selected
The police stations of the capitals will be previously contacted by a presentation document of the study with support from SENAD and UFRGS reporting about the data collection. Approximately two weeks before the arrival of the data collectors to the local where the study will be held, the data collector manager appointed by SENAD and trained member of the team will make previous contact by telephone with the police officers of the Federal Highway Police station (PRF) selected, in order to inform about the data collection that will be applied, with data points, such as:
• Reason for the study and how it is going to work
• Confirm contact of the local police officer who will assist data collectors in the days of the data collection and to whom they will address in any situation
• Request for materials to be used, such as cones to establish road blocks on the highway • Make contact with the local police representative informing arrival date and time in the
city, as well as the beginning date and time of data collection, since the police are responsible for locomotion of the study team.
3. List of items needed
The data collectors should be provided on the day of travel by the following items: • Presentation letter of SENAD/NEPTA describing the project
• Airplane tickets and hosting contacts
• Authorization to transport biological material (ANVISA)
• Bags to transport the gifts (shirts, caps and CD holders) and flyers • PDA (one for each data collector)
• Questionnaires in paper (if the PDAs fail), informed consent (CONSENT FORMS) and coercion scale sufficient for the data collection
• List each capital n with the order of the cars to be addressed (randomly generated) • Identification badges
• Pens to mark the Quantisals • Clipboards
• Quantisal (in adequate number to collect that state/day, with a margin); which will be at the Pharmacy Laboratory of HCPA
• Thermal ice bags for the Quantisal
• Card with explanatory pictures about the measure of the drinks • Fluorescent range vest (chest) for the data collectors
• Flashlights • Raincoat • Breathalizers
• Cellular phone to contact with the Center and study coordinators • Vaccine portfolio of each data collector
• Mosquito and bug repellent • Sun block
• HCPA badge; keys of the Center (02 keys), keys of the laboratory (02 keys) where the saliva samples will be stored.
4. Previous organization for data collection
On the day before the trip, the data collectors should organize the materials that will be taken to the field. Check the list of items needed; elect who will be responsible, in that data collection, for the saliva sample.
The responsible person shall carry 02 keys of the Center, be registered in the laboratory to remove and deliver of the Quantisals, as well as the ock key from the refrigerated chamber and the cabinet key where the Quantisals will be stored. The remaining material will be stored at the study coordinator’s room. The PDAs will be in the safe with the Breathalizers. It is noteworthy that the PDAs should be kept with the certainty of being properly recharged (when the battery is really at the end).
For the data collections where the n is 100, for example, it is suggested to previously print 30 questionnaires, 210 consent forms and 210 Coercion Scales.
5. Arrival to the capital of the collection
The data collection team will arrive one day before at the city airport where the study will be performed. A vehicle of the local police previously contacted by the data collection manager
will make the transportation of them to the hotel, as well as to the Highway Patrol station in the following morning.
6. Arrival at the place of the data collection (Highway Patrol station)
The team members should arrive about two hours before the data collection starts and will be carrying the instruments for implementing the study, as item 3 plus glasses of mineral water for the interviewee.
Arriving at the Highway Patrol station, the local team comprised by federal highway police officers will be waiting. They will make approaches to vehicles, as well as a police officer who will put the signs on the highway to direct cars to the area of the study. At this moment, the data collection manager team member will train police officers in their duties in this study, in order to become a standard procedure in all states, as well as organizing the place, with appropriate signaling to direct cars and mark the area.
Federal police representatives previously contacted should be in the place to provide logistical support and security for data collection. The area where the data collection will be placed, inside the Federal Highway Police station, will be a suitable place to protect the data collectors and to address each vehicle.
LABEL:
= Federal Road Police office = Police officer (initial approach)
= Data collector = Assistant police officer (signaling)
= vehicle entrance = vehicle exit
= cones = band with the indentification of the study
= sunblind or similar
= Local to – bags with: gifts and quantisal – thermal bags for the quantisal and for water)
STOP THE CARS PRF
STATIONARY CARS
INITIAL APPROACH
7. Approaching the drivers
The vehicles stopped on the highway will be selected so that the third vehicle is going to stop, avoiding bias in the selection of the first vehicle 1. The next vehicle will be stopped after the interview and data collection of one of the data collectors have come to an end. The data collection process for each capital is considered concluded when the data collectors reach the quota set for each vehicle type (data collection quotas for vehicles for each capital).
A local highway police officer will be designated to direct the cars to the survey place; he/she should have this list in order to monitor the need for the data collection.
The police officer designated will make the initial approach: standard review of documentation and traffic conditions of the vehicle. The driver will be informed about the study and asked to talk to the data collector, receiving an explanatory flyer about drinking and driving.
After the initial procedure, the police officer will invite the drivers to direct themselves to the data collector. The contact between the driver and the data collectors should always be performed outside the vehicle.
8. Login PDA and observational data – see attachment of the PDA
If the driver accepts the invitation to talk with the data collector, he/she will explain the study aims and invite the driver to participate by presenting the informed consent.
If the answer is affirmative, the data collector conducts the interview, applying the questionnaire and saliva collection and the coercion scale and provides the gift at the end. After study procedure, the driver is redirected to the police officer, who will breathalize him/her.
After the initial login in the PDA, the data collector must observe the general conditions of the vehicle selected, and insert data in the PDA.
1. This procedure is used in roadside studies and results in a random selection of eligible vehicles, preventing bias regarding the type of vehicle selected.
Once completed the observational data in the PDA, the data collector will address the driver by following a basic protocol that includes his/her presentation as part of a study project nationwide, citing the institutions involved in the process, the voluntary participation of the interviewee, as well as anonymity of the study, as in the model below:
Good Afternoon! My name is_____. We are conducting a study of the Federal University of Rio Grande do Sul to study the behavior of drivers. Can we talk?
Deliver the CONSENT FORMS
I’d like to give you these explanations about the study and tell you that your participation is completely voluntary. The information is confidential – that is, your name doesn’t appear in the results. The study will take just a few minutes and consists of some questions and a saliva collection. You may exit at any time without giving reasons.
10. Reading of the consent term
After the initial presentation, the data collector will make a brief reading of the consent form explaining the elements of data collection in aspects relates to privacy and confidentiality of the study.
Could you sign this paper after I explained everything for you? A copy is yours and the other is ours. It is the guarantee that the information is for study purposes only. I would like to remind you that this signature is not mixed with the questionnaire answers.
If the individual does NOT agree in participating in the study, the data collector asks to the individual what is the reason for refusal and release him/her, ask him/her to redirect to the police officer in order.
If the person agrees, he/she stays in the same space and item 8 and the following items will be marked. After reading the consent form the data collector initiates the questionnaire. The study questions will be read to the individual so that the data collector records the answers in the PDA, explaining each issue, if necessary.
11. Saliva collection – see manual of the saliva collection
After the saliva collection the driver will be asked to answer the coercion scale, which will be given to him/her as a sheet of paper that will later be transferred to the PDA. The coercion scale is attached.
13. Deliver the gift, feedback and thanks
In this final moment, the data collector will ask the individual if he/she has any question or would like to leave some consideration or suggestion on this study. After that, the data collector thanks the individual’s participation in this study and hands him/her a gift developed by NEPTA. There are three types of gift for the occasion, a cap, a shirt and a CD holder with the logo of NEPTA and funders of this study. Then the driver is directed back to the police officer in order to be breathalized and the result will be recorded by the data collector.
14. Back to Porto Alegre
The data collector responsible for the delivery of the material collected will be going from the airport directly to Hospital de Clinicas de Porto Alegre, in order to store the saliva samples in the laboratory chamber, where there is a proper place to keep them. At this location the person responsible for delivering must fill the table that is adjacent to the local of the storage of the Quantisal and contains data such as time of delivery of the material, quantity and location of data collection.
The remaining material should be placed in the room of the coordinator of the Center. Remember that the PDAs and breathalizers must be kept in the safe.
