Sperm cryopreservation incidence in men with testicular cancer: towards a stabilization in testicular cancer incidence? Results from the CECOS network

Table 1 Rates and numbers of men using sperm cryopreservation for testicular cancer in the CECOS network from 1990 to 2013 and predictions after 2013 derived from the Poisson regression model and the Verhulst model

Mean annual number of 100,000 person-years^a		Rates (number)
Mean annual number of 100,000 person-years^a		Men using sperm cryopreservation	Poisson regression model	Verhulst model
1990	172.69	1.73 (299)	2.64 (456)	1.96 (340)
1995	174.33	2.95 (515)	3.24 (565)	3.27 (576)
2000	177.58	4.64 (824)	3.98 (706)	4.48 (802)
2005	183.52	5.59 (1025)	4.88 (895)	5.27 (956)
2010	182.91	5.52 (1009)	5.98 (1094)	5.68 (1037)
2015	183.00	–	7.34 (1343)	5.87 (1073)
2020	183.48	–	9.00 (1652)	5.94 (1089)

^aMean annual number of 100,000 person-years means that, for example, in 1990, 17,269,000 men aged between 18 and 49 years old were at risk of developing testicular cancer in France. The incidence of sperm cryopreservation was calculated as the number of sperm cryopreservations divided by the mean annual number of 100,000 person-years for each year

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