Table 1.

Inclusion and Exclusion Criteria

Inclusion criteria	Age >2 months to 18 years
	Admitted to hospital
	Discharge diagnosis ICD-10 codes for CAP, UTI, or SSTI*
	Prescribed antibiotics within first 24 hours of presentation
	Treated with full course of antibiotics for one of the above diagnoses
Exclusion criteria	Immunocompromised
	Ill-appearing
	Diagnosis of Cystic Fibrosis
	Patients with SSTI involving face, eyes, perineum; animal bites and postoperative wound infections
	Patients treated for >1 infection
	Anyone started on antibiotics for presumed infection first as outpatient or transferred from referring hospital

^*ICD-10 codes: UTI: N39.0; N15.1; N30.0; N30.9; N10; CAP: J12.0, J12.1, J12.2, J12.89, J15.4, J15.0, J13, J18.1, J15.3, J15.8, J15.6, J15.211, J15.212, J16.8, A37.91, J18.0, J18.9, J11.00, J12.9; J15.9; SSTI: L03.xx, L02.xx; N61