Figure 1.

Injury probability as a function of the interaction of mother-reported supervision and number of drinks. The mean probability of injury is.5 because half of the events in the data set were injuries. A supervision score of 3 = mother and child > 6 feet apart, no visual contact but there is auditory contact; 5 = mother and child > 6 feet apart, child has mother's full attention; 7 = mother within 6 feet of child, not engaged in other activity.