Evaluating post-operative venous thromboembolism risk in urology patients using a validated risk assessment model

African Journal of Urology

Table 2 Probability (%) of different risk categories for VTE in this population compared with other studied populations

Publication	Surgical population	Very low risk (0)	Low risk (1–2)	Moderate risk (3–4)	High risk (≥ 5)
This study*	Urology elective surgery	0.0	15.04	40.27	44.69
	Urology oncology surgery	0.0	0.0	2.56	97.44
	Urology non-oncology surgery	0.0	18.18	48.13	33.69
McAlpine et al. [20]	Urology major abdominal or pelvic surgery	0.01	0.82	8.87	90.29
Bahl et al. [14]	General, vascular and urology surgery		11.37^a	36.53	52.11
Barber et al. [22]	Gynaecology oncology surgery	0.0	0.1	2.98	96.92
Snyman et al. [23]*	Elective Gynaecology surgery		17^a	38	45
Jacobson et al. (2014)*	Unspecified surgical inpatients		20.3^a	15	43.7
Macht et al. [18]	Thyroid and parathyroid surgery		72^a	26	2
Shuman et al. [16]	Otolaryngology surgery		11.4^a	31	57
Bilgi et al. [24]	Elective and emergency general surgery		28.2^a	29.5	42.2

*South African data
^aThese studies made use of risk-level terminology that differs from the ACCP guideline. Hence, low and very low risk categories are combined to align the categories with the equivalents from other studies