TABLE 1.

Characteristics of Participating Practices

CharacteristicIntervention (N = 20)Control (N = 18)
Practice specialty
 Pediatrics87
 Family medicine911
 Health department30
Practice organization
 Solo12
 Group, single specialty106
 Group, multispecialty910
Pediatric patients/month (median, range)1000 (50–3500)520 (40–3000)
Times EMS called for pediatric emergency in past 6 mo (mean, range)2.6 (0–20)0.3 (0–2)*
Distance from hospital
 <15 min1311
 15–30 min33
 >30 min01
Region of North Carolina
 Western105
 Central410
 Eastern63