Merging of similar or duplicate strategies for use at phase 4 of the Delphi
| Revised river drowning prevention strategy | Original strategies combined (see online supplementary Table S4) |
| Apply a risk rating system | 1 |
| Wear a life jacket | 2–7 |
| Avoid open water at night | 8 |
| Signage | 9–12 |
| Swim/recreate/wash/bathe only in designated safe places | 13–17 |
| Caregivers maintaining active supervision | 18 |
| Do not engage in water recreation alone | 19 |
| Barriers between child play areas and rivers | 20–21 |
| Strategies to survive cold water immersion | 22 |
| River safety education including recognition and awareness of hazards | 23–35 |
| Community-wide rescue and resuscitation skills | 36–37 |
| Raise awareness of the risks of drowning from alcohol | 38–42 |
| Public rescue equipment available | 43 |
| Learn to swim with a focus on survival swimming skills | 44–45 |
| Build safe and accessible infrastructure such as bridges | 46 |
| Designing the urban landscape to improve safety | 47–51 |
| Close flooded roads and/or use physical barriers (such as booms) | 52–54 |
| Prohibiting/Restricting alcohol use | 55–58 |
| Establish effective early warning systems | 59–61 |
| Community risk mapping and assessment to formulate targeted prevention programme | 62–65 |
| Sustainable land use to prevent flooding | 66 |
| Other (please specify) | – |