Table 1

Principal CHIRPP variables used to describe circumstances

VariableNo of valuesExamples
Location57Own home, school, public park, highway
Area48Bathroom, stairs, swimming pool, bicycle path/lane
Context47Pedestrian, informal sports, food preparation, eating
Breakdown event22Fall on same level, collision, spill, structural fire, failure, malfunction
Breakdown, mechanism or contributing factors728Window glass, dog, television, barbeque, hammer, acetaminophen, dishwasher detergent, coffee table, ice hockey, light bulb, iron, radiator, lawn mower, swing
Intent7Unintentional, intentional self harm, maltreatment by parent or caregiver, sexual assault