Supplementary Table S1.
Fifteen most frequently used input features included among predictive modeling studies.
| Study, year | Input features | 
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age | Gender/sex | BMI/obesity | Ethnicity/race | Diabetes | HTN | Anesthetic | Smoking | CVD | ASA score | CCI | Hb/HCT/anemia | Pulmonary disease/COPD | Neoplastic disease | CKD/dialysis | |
| Navarro, 2018 | ✓ | ✓ | ✓ | ✓ | |||||||||||
| Ramkumar, 2019 | ✓ | ✓ | ✓ | ||||||||||||
| Ramkumar, 2019 | ✓ | ✓ | ✓ | ||||||||||||
| Ramkumar, 2019 | ✓ | ✓ | ✓ | ✓ | |||||||||||
| Lee, 2019 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
| Gabriel 2019 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||
| Wei, 2021 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||
| Han, 2021 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
| Kugelman, 2021 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||
| Yeo, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
| Klemt, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
| Lopez, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
| Abbas, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Motesharei, 2022 | ✓ | ✓ | |||||||||||||
| Zalikha, 2022 | ✓ | ✓ | ✓ | ||||||||||||
| Johannesdottir, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
| Klemt, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
| Li, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
| Kugelman, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||
| Trunfio, 2022 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
| Total Number of Studies | 20 | 20 | 14 | 12 | 11 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 
ASA, American Society of Anesthesiologists; BMI, body mass index; CCI, Charlson Comorbidity Index; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVD, cardiovascular disease; Hb, hemoglobin; HCT, hematocrit; HTN, hypertension.