Table 2. Search terms.

Search ID	Sub-heading	Search Terms
S4	Children	paediatric* OR pediatric* OR (MH “Paediatrics+”) OR (MH “Pediatrics+”) OR child*
S3	Hospital based	(MH “Hospitals+”) OR hospital*
S2	Low-income countries	(MH “Developing Countries+”) OR (MH “Africa+") OR TI (“low income” OR “low and middle income“OR “LMIC” OR “LIC” OR “limited resource*” OR “poor resource*” OR "resource* poor" OR (“developing countries”) OR (“developing nations”) OR (“third world”) OR “resource-constrained” OR (“global south”)
S1	Predictive models	prognos* OR (MH “prognosis”) OR (Predict* AND (Outcome* OR Risk* OR Model* OR Mortality OR Index OR Rule* OR decision* OR scor*)) OR “risk score” OR “scor* system” OR “logistic model*”“risk prediction” OR “risk calculation” OR “risk assessment” OR “c statistic” OR discrimination OR calibration OR AUC OR “area under the curve” OR “area under the receiver operator characteristic curve”