Table 5.

Multivariate analysis of risk for patients with a primary diagnosis of undescended testicle belonging to the AS group

Characteristics	OR	95% CI	P
Bilateral UDT	6.314	1.497–26.638	0.012
Age at the operation (year)	0.929	0.838–1.030	0.163
Age at SA (year)	0.997	0.989–1.004	0.369
Jewish	0.161	0.044–0.587	0.006
BMI >30 kg m−2	1.594	0.411–6.175	0.500
Smoker	0.342	0.057–2.052	0.241
Diabetes mellitus	0.206	0.001–39.341	0.241
Dyslipidemia	1.624	0.004–676.980	0.875

OR: odds ratio; CI: confidence interval; BMI: body mass index; UDT: undescended testicle; SA: semen analysis; AS: azoospermia or severe oligozoospermia (sperm concentration below 5 × 10⁶ per ml)