| | Author (year) | Patient | Surgery | APF grading | APF rate (%) | Included factors | Significant variables |
| | Bylund et al. (2013) | 29 | RPN, OPN, or laparoscopic cryoablation | Operative records | 55.2 | Clinical, imaging, pathological, outcome | Male gender, tumor size, stranding, tumor >50% exophytic, thickness of perinephric fat, and OT | | Zheng et al. (2014) | 41 | OPN | Time of perinephric fat dissection on | 53.7 | Clinical, imaging, pathological, outcome | Male gender and PnFSD | | Davidiuk et al. (2014) | 100 | RPN | Described by Kim et al. | 30 | Clinical, imaging, pathological, outcome | Male gender, BMI, posterolateral and posterior perinephric fat, and stranding | | Davidiuk et al. (2015) | 100 | RPN | Described by Kim et al. | 30 | Outcome | | | Kobayashi et al. (2016) | 47 | LPN or RALPN | Operative records | 14.9 | Clinical, imaging, outcome | OT, hypertension, and FSPA on CT | | Martin et al. (2016) | 86 | OPN | Operative records | 50.0 | Clinical, imaging, outcome | Age and MAP score | | Kocher et al. (2016) | 245 | LPN or RPN | Operative records | 10.6 | Clinical, imaging, pathological, outcome | Age, male gender, stranding, posterior fat thickness, MAP score, malignant renal histology, operating time, and EBL | | Dariane et al. (2016) | 125 | RPN or OPN | Described by Kim et al. | 40.8 | Clinical, imaging, pathological, outcome, histological | OT, EBL, male gender, age, waist circumference, fat density on CT, MAP score, and larger adipocytes | | Shintaro et al. (2017) | 92 | Laparoscopic donor nephrectomy | Intraoperative videos | 55.4 | Clinical, imaging, outcome, IHC | Perinephric fat area, stranding, sIL-6R, and OT | | Khene et al. (2017) | 202 | RPN | Operative records | 39.6 | Clinical, imaging, outcome | Male gender, obesity, hypertension, MAP score, OT, EBL, transfusion, and conversion to open surgery or radical nephrectomy |
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