Table 1.

Univariate analysis of testicular atrophy and testicular volume loss.

	Normal testis	Testicular atrophy	P-value	Testicular volume loss	P-value
	(n = 69)	(n = 44)		Median (IQR)
Age at surgery (years)			<0.0001*		0.0372*
2–6	8 (7.08%)	26 (23.01%)	Ref	69.31 (48.98–90.51)	Ref
7–12	33 (29.20%)	8 (7.08%)	<0.0001*	26.80 (0.67–73.35)	0.0178*
13–17	28 (24.78%)	10 (8.85%)	<0.0001*	28.64 (9.70–90.28)	0.0495*
Side			0.5847		0.6080
Left	57 (50.44%)	40 (35.40%)		51.02 (10.76–87.65)
Right	12 (10.62%)	4 (3.54%)		44.73 (1.48–85.92)
Delayed surgery (hours)			0.0003*		<0.0001*
0–12	33 (29.20%)	8 (7.08%)	Ref	11.57 (3.61–42.24)	Ref
12–24	20 (17.70%)	10 (8.85%)	0.1860	62.29 (20.02–87.18)	0.0037*
>24	16 (14.16%)	26 (23.01%)	<0.0001*	78.40 (54.97–95.67)	<0.0001*
Degree of torsion			0.7201		0.7212
0–360°	40 (35.40%)	24 (21.24%)		54.21 (2.46–89.66)
>360°	29 (25.66%)	20 (17.70%)		51.02 (12.04–76.14)
ETPU†			0.0001*		<0.0001*
Homogeneous	27 (23.89%)	2 (1.77%)		12.03 (0.45–28.64)
Heterogeneous	42 (37.17%)	42 (37.17%)		69.03 (13.68–91.18)
Blood flow on ultrasonography			0.1146		0.5033
Decreased	18 (15.93%)	6 (5.31%)		54.58 (22.36–90.23)
Absent	51 (45.13%)	38 (33.63%)		51.02 (6.30–87.65)
Intraoperative blood supply			0.0005*		<0.0001*
Rich blood supply	48 (42.48%)	16 (14.16%)		17.82 (1.48–72.32)
Poor blood supply	21 (18.58%)	28 (25.78%)		68.75 (51.02–92.87)

Data are expressed as median (IQR) or n (%) as appropriate.

^†ETPU, Echogenicity of testicular parenchymal on ultrasonography.

^*P < 0.05.