Table 2 Study Outcomes
No. | Study Comparison | Variable | Indicator | Source |
|---|---|---|---|---|
1. Primary Outcome Indicator | ||||
1 | Difference between intervention and control buses | Change in traffic crash rate per 1000 buses over a 14-month period | Whether the bus experienced a road traffic crash as reported from motor vehicle insurance claims among those buses during 7-month period of study or 7-months prior to study | Data on motor vehicle insurance claims |
2. Secondary Outcome Indicators | ||||
2 | Difference between intervention and control buses | Change in the traffic crash rate per 1000 buses overtime for a 14-month period (monthly analysis) | Whether the bus experienced a road traffic crash as reported from motor vehicle insurance claims for each month for the 7-month period of study or 7-months prior to study (repeated measures or monthly analysis) | Data on motor vehicle insurance claims |
3 | Difference between intervention and control buses | Change in crashes resulting in fatalities per 1000 buses over a 14-month period | Total number of fatalities from road traffic crashes during the period of the study as compared to the 7 months prior to the study | Data on motor vehicle insurance claims |
4 | Pre vs. Post (overall and not separated per arm) | Mean number of road traffic crashes | Total number of road traffic crashes during the period of the study as compared to the 7 months prior to the study | RTSA data and Zambia road traffic police reports; |