Basic and Clinical Andrology

Table 2 Comparison of semen quality parameters betwen preoperative and postoperative group

From: Preoperative semen quality is superior to the quality shortly after orchiectomy in patients with testicular germ cell tumour – a retrospective study from two centres in Germany

		before orchiectomy	after orchiectomy	p-value
ejaculate volume (ml)	n	163	242
	median	3	2
	Q1; Q3	2; 4.2	2; 3	< 0.0001
proportion EV < 1.4 ml (%)	n	163	242
	%	6.1%	8.3%
	95% CI	3.0%; 11.0%	5.1%; 12.5%	0.4223
total sperm count (n)	n	163	242
	median	56.9	13
	Q1; Q3	13.7; 126.6	2; 48	< 0.0001
TSC, proportion < 39 × 10 ⁶	n	163	242
	%	41.7%	70.7%
	95% CI	34.1%; 49.7%	64.6%; 76.3%	< 0.0001
proportion azoospermia	n	163	242
	%	4.9%	14.9%
	95% CI	2.1%; 9.4%	10.6%; 20.0%	0.0016
progressive motility (%)	n	n = 157	n = 221
	median	40	25
	Q1; Q3	25; 51.3	0.3; 36.5	< 0.0001
proportion motility < 30%	n	n = 157	n = 221
	%	36.9%	67.0%
	95% CI	29.4%; 45.0%	60.3%; 73.1%	< 0.0001
motility < 30% & TSC < 39 × 10 ⁶	n	157	221
	%	28.7%	51.1%
	95% CI	21.7%; 36.4%	44.3%; 57.9%	< 0.0001
motility < 30% & TSC ≥ 39 × 10 ⁶	n	157	221
	%	8.3%	15.8%
	95% CI	4.5%; 13.7%	11.3%; 21.3%	0.0297
motility ≥ 30% & TSC < 39 × 10 ⁶	n	157	221
	%	12.7%	20.8%
	95% CI	8.0%; 19.0%	15.7%; 26.8%	0.0415

This table shows the main results of the study: all semen parameters are significantly more favourable in the preoperative group, with the exception of proportion of ejaculate volume <1.4 ml. Statistical comparisons were made with the chi square test for binary variables and with the Wilcoxon two sample test for quantitative variables. EV ejaculate volume; TSC total sperm count; CI confidence interval; Q1 first quartile, Q3 third quartile

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ISSN: 2051-4190

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