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. 2023 May 18;13(5):e067343. doi: 10.1136/bmjopen-2022-067343

Table 1.

Variable definitions

Hypoxia
Age ≤5 years SpO2 ≤94%
Age >5 years SpO2 ≤92%
Fever Temperature ≥38℃
Shock vitals
Age 0 to <1 years* HR >160 bpm
Age ≥1 to < 3 years* HR >160 bpm
Age ≥3 to < 5 years* HR >140 bpm
Age ≥5 to < 13 years HR ≥130 bpm or a systolic blood pressure <70 mm Hg
Age ≥13 years HR ≥130 bpm or a systolic blood pressure <80 mm Hg

*Note: Blood pressure was not included as a criterion in the younger age groups as it is not reliably recorded.

HR, Heart rate; SpO2, Oxygen saturation.