Table 5. Valuation of TWIST score in the diagnosis of testicular torsion of studies.

Author Year	Cut-off	Sens1	Spec2	PPV3	NPV4
Barbosa [8]-2013	2	100%	82%	49%	100%
	5	76%	100%	100%	96%
Sheth [11]-2016	0		47.6%		100%
	6	65.9%		93.5%
Frohlich [17]-2017	7	21.0%	100%	100%
Manohar [10]-2018	2	95.5%			96.6%
	5		97.2%	92.8%
Bašković [9]-2019	2	95.1%			98.5
	5	97.7%		92.5%
Our study 2021	2	100%			100%
	5	93.7%	98.1%	93.7%	98.1%

Sensitivity
Specifcity
Positive predictive value
Negative predictive value