Table 4.

Comparison of top-50 important features between suboptimal models and the best performing one.Importance of some comorbidities tend to be overestimated by suboptimal models, while the importance of peripheral vascular is underestimated in AutoInt and LSTM. Suboptimal models underestimate various labevent and chartevent features.

Model	Extra (identified in model but not in IMVLSTM)	Lacking (identified in IMVLSTM but not in model)
AutoInt	88. systolic_blood_pressure_abp_mean 90. body_temperature 134. congestive_heart_failure 135. cardiac_arrhythmias 140. paralysis 152.solid_tumor 153. rheumatoid_arthritis 160.alcohol_abuse 163. depression	31. HEMOGLOBIN 33. MCH 44. INR(PT) 45. PT 57. LACTATE 76. O2Flow 82. SpO2DesatLimit 91. pao2 138. peripheral_vascular
LSTM	32. MCHC 135. cardiac_arrhythmias 136. valvular_disease 143. diabetes_uncomplicated 146. renal_failure	39. CREATININE 57. LACTATE 82. SpO2DesatLimit 131. language 138. peripheral_vascular
TCN	77. Glucosefingerstick 134. congestive_heart_failure 136. valvular_disease 151. metastatic_cancer 152. solid_tumor	39. CREATININE 57. LACTATE 82. SpO2DesatLimit 93. urinary_output_sum
Transformer	135. cardiac_arrhythmias 136. valvular_disease 143. diabetes_uncomplicated 152. solid_tumor	45. PT 57. LACTATE 82. SpO2DesatLimit 124. HEM