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Table 1 Summary statistics for the patient level data (N = 1001)

From: Ensemble-based methods for forecasting census in hospital units

Variable Variable type Mean Median Standard deviation Range
LOS Discrete 20.1 10.0 25.4 (1,227)
BWEIGHT Continuous 2418.0 2335.0 939.8 (360, 5493)
GESTAGE Continuous 34.6 34.0 4.0 (23, 42)
SNAPDOL1 Discrete 8.2 0.0 13.1 (0, 103)
SNAPDOL3 Discrete 5.0 0.0 10.4 (0, 86)
MAIN1 Continuous 484.8 417.0 314.0 (0, 2139)
MAIN7 Continuous 661.2 607.0 361.3 (0, 2486)
  1. LOS represents a patient’s length of stay in the NICU, BWEIGHT represents a patient’s birth weight in grams, GESTAGE denotes a patient’s gestational age in weeks, SNAPDOL1 represents a patient’s SNAPPE score recorded after 1 day spent in the NICU, SNAPDOL3 represents a patient’s SNAPPE score recorded after 3 days spent in the NICU, MAIN1 represents a patient’s MAIN score recorded after 1 day spent in the NICU and MAIN7 represents a patients MAIN score recorded after 7 days spent in the NICU. The smaller the SNAPPE and MAIN scores, the physiologically healthier the child.