. 2017 Dec 5;154(6):F93–F110. doi: 10.1530/REP-17-0374

Table 2.

Outcomes using ejaculated, epididymal and testicular spermatozoa. Data are presented as mean ± s.d.

Parameter	Ejaculated	Epididymal	Testicular
Maternal age (years)	37.7 ± 5^a	35.3 ± 5^b	33.8 ± 6^c
Cycles	31,723	1140	1713
Oocytes retrieved	10.3 ± 6^d	12.0 ± 7^e	12.5 ± 7^f
Oocytes injected	8.3 ± 5^g	9.6 ± 5^h	10.1 ± 5ⁱ
Oocytes fertilized	6.3 ± 4^j	6.9 ± 5^k	5.2 ± 4^l
Clinical pregnancy rate per cycle (%)	11,536 (36.4)^m	576 (53.2)ⁿ	687 (40.1)^o

a vs b vs c: ANOVA, 2 df, effect of sperm source on average maternal age, P < 0.0001; d vs e, f: t-test, 1 df, effect of sperm source on number of oocytes retrieved, P < 0.0001; g vs h, i: t-test, 1 df, effect of sperm source on number of oocytes injected, P < 0.0001; j vs k vs l: ANOVA, 2 df, effect of sperm source on number of oocytes fertilized, P < 0.0001; m vs n vs o: χ², 3 × 2, 2 df, effect of sperm source on clinical pregnancy rate, P < 0.0001.