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Table 1 EWS score at three periods preceding ward transfer to the ER

From: Improving recognition of patients at risk in a Portuguese general hospital: results from a preliminary study on the early warning score

EWS −72 h −24 h −12 h
n 45 59 65
Mean ± SD 2.6 ± 1.9 2.4 ± 1.8 3.8 ± 1.7
CI (95%) 2.0 to 3.2 1.9 to 2.9 3.4 to 4.2
Median 2.0 3.0 4.0
Minimum 0.0 0.0 0.0
Maximum 7.0 7.0 7.0