Table III.

Case-crossover Analysis Model Predicting Injury Risk from Caregiver-reported Drinking and Supervision

	OR (95% CI)
Mothers and fathers as supervisors
Fixed effects
Caregiver-reported number of drinks	1.46* (1.09–1.96)
Caregiver-reported supervision	0.89** (0.82–97)
Supervision * number of drinks	1.09 (0.89–1.34)
Mothers only as supervisors
Fixed effects
Mother-reported number of drinks	1.11 (0.59–2.08)
Mother-reported supervision	0.95 (0.87–1.04)
Supervision * number of drinks	1.69+ (0.99–2.89)

+ p <.10; *p <.05; **p <.01; p <.001; CI, confidence interval.

For analyses including data from both mothers and fathers n = 2,072. For analyses including data from mothers only n = 1,788. Interaction variables are centered to their mean. Supervision was measured on a 1–7 scale, in which 7 was the highest level of supervision. 7 = mother within 6 feet of child, not engaged in other activity; 6 = mother within 6 feet of child, engaged in other activity; 5 = mother and child > 6 feet apart, child has mother's full attention; 4 = mother and child > 6 feet apart, child does not have mother's attention; 3 = mother and child > 6 feet apart, no visual contact but there is auditory contact; 2 = no visual or auditory contact with child, could reach child within 30 s; 1 = no visual or auditory contact, could not reach child within 30 s.